Merge pull request 'Add public event detail page (007-view-event)' (#14) from 007-view-event into master

Reviewed-on: #14

.claude/hooks/frontend-check.sh

@@ -16,7 +16,7 @@ cd "$CLAUDE_PROJECT_DIR/frontend"
 ERRORS=""
 
 # Type-check
-if OUTPUT=$(npx vue-tsc --noEmit 2>&1); then
+if OUTPUT=$(npm run type-check 2>&1); then
     :
 else
     ERRORS+="Type-check failed:\n$OUTPUT\n\n"

.gitea/workflows/ci.yaml

@@ -7,10 +7,10 @@ jobs:
   backend-test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up JDK 25
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: 25
@@ -21,10 +21,10 @@ jobs:
   frontend-test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Node 24
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: 24
 
@@ -49,10 +49,10 @@ jobs:
   frontend-e2e:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Node 24
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: 24
 
@@ -66,7 +66,7 @@ jobs:
         run: cd frontend && npm run test:e2e
 
       - name: Upload Playwright report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: ${{ !cancelled() }}
         with:
           name: playwright-report
@@ -78,7 +78,7 @@ jobs:
     if: startsWith(github.ref, 'refs/tags/') && contains(github.ref_name, '.')
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Parse SemVer tag
         id: semver

.gitignore

@@ -14,6 +14,9 @@ Thumbs.db
 .agent-tests/
 .ralph/*/iteration-*.jsonl
 
+# Test results (Playwright artifacts)
+test-results/
+
 # Java/Maven
 *.class
 *.jar

.specify/memory/constitution.md

@@ -107,8 +107,10 @@ Accessibility is a baseline requirement, not an afterthought.
   rationale. Never rewrite or delete the original decision.
 - The visual design system in `.specify/memory/design-system.md` is authoritative. All
   frontend implementation MUST follow it.
-- Research reports go to `docs/agents/research/`, implementation plans to
-  `docs/agents/plan/`.
+- Feature specs, research, and plans live in `specs/NNN-feature-name/`
+  (spec-kit format). Cross-cutting research goes to
+  `.specify/memory/research/`, cross-cutting plans to
+  `.specify/memory/plans/`.
 - Conversation and brainstorming in German; code, comments, commits, and
   documentation in English.
 - Documentation lives in the README. No wiki, no elaborate docs site.

.specify/memory/ideen.md

@@ -33,6 +33,7 @@ Person erstellt via App eine Veranstaltung und schickt seine Freunden irgendwie
 	* Updaten der Veranstaltung
 	* Einsicht angemeldete Gäste, kann bei Bedarf Einträge entfernen
 * Featureideen:
+	* Link-Previews (OpenGraph Meta-Tags): Generische OG-Tags mit App-Branding (z.B. "fete — Du wurdest eingeladen") damit geteilte Links in WhatsApp/Signal/Telegram hübsch aussehen. Keine Event-Daten an Crawler aus Privacy-Gründen. → Eigene User Story.
 	* Kalender-Integration: .ics-Download + optional webcal:// für Live-Updates bei Änderungen
 	* Änderungen zum ursprünglichen Inhalt (z.b. geändertes datum/ort) werden iwi hervorgehoben
 	* Veranstalter kann Updatenachrichten im Event posten, pro Device wird via LocalStorage gemerkt was man schon gesehen hat (Badge/Hervorhebung für neue Updates)

CLAUDE.md

@@ -49,3 +49,10 @@ The following skills are available and should be used for their respective purpo
 - The loop runner is `ralph.sh`. Each run lives in its own directory under `.ralph/`.
 - Run directories contain: `instructions.md` (prompt), `chief-wiggum.md` (directives), `answers.md` (human answers), `questions.md` (Ralph's questions), `progress.txt` (iteration log), `meta.md` (metadata), `run.log` (execution log).
 - Project specifications (user stories, setup tasks, personas, etc.) live in `specs/` (feature dirs) and `.specify/memory/` (cross-cutting docs).
+
+## Active Technologies
+- Java 25 (backend), TypeScript 5.9 (frontend) + Spring Boot 3.5.x, Vue 3, Vue Router 5, openapi-fetch, openapi-typescript (007-view-event)
+- PostgreSQL (JPA via Spring Data, Liquibase migrations) (007-view-event)
+
+## Recent Changes
+- 007-view-event: Added Java 25 (backend), TypeScript 5.9 (frontend) + Spring Boot 3.5.x, Vue 3, Vue Router 5, openapi-fetch, openapi-typescript

Dockerfile

@@ -10,14 +10,14 @@ COPY backend/src/main/resources/openapi/api.yaml \
 RUN npm run build
 
 # Stage 2: Build backend with frontend assets baked in
-FROM eclipse-temurin:25-jdk-alpine AS backend-build
+FROM eclipse-temurin:25.0.2_10-jdk-alpine AS backend-build
 WORKDIR /app/backend
 COPY backend/ ./
 COPY --from=frontend-build /app/frontend/dist src/main/resources/static/
 RUN ./mvnw -B -DskipTests -Dcheckstyle.skip -Dspotbugs.skip package
 
 # Stage 3: Runtime
-FROM eclipse-temurin:25-jre-alpine
+FROM eclipse-temurin:25.0.2_10-jre-alpine
 WORKDIR /app
 COPY --from=backend-build /app/backend/target/*.jar app.jar
 EXPOSE 8080

backend/pom.xml

@@ -179,7 +179,7 @@
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>build-helper-maven-plugin</artifactId>
-                <version>3.6.0</version>
+                <version>3.6.1</version>
                 <executions>
                     <execution>
                         <id>add-openapi-sources</id>

backend/src/main/java/de/fete/adapter/in/web/EventController.java

@@ -3,9 +3,18 @@ package de.fete.adapter.in.web;
 import de.fete.adapter.in.web.api.EventsApi;
 import de.fete.adapter.in.web.model.CreateEventRequest;
 import de.fete.adapter.in.web.model.CreateEventResponse;
+import de.fete.adapter.in.web.model.GetEventResponse;
+import de.fete.application.service.EventNotFoundException;
+import de.fete.application.service.InvalidTimezoneException;
 import de.fete.domain.model.CreateEventCommand;
 import de.fete.domain.model.Event;
 import de.fete.domain.port.in.CreateEventUseCase;
+import de.fete.domain.port.in.GetEventUseCase;
+import java.time.Clock;
+import java.time.DateTimeException;
+import java.time.LocalDate;
+import java.time.ZoneId;
+import java.util.UUID;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.RestController;
@@ -15,19 +24,29 @@ import org.springframework.web.bind.annotation.RestController;
 public class EventController implements EventsApi {
 
   private final CreateEventUseCase createEventUseCase;
+  private final GetEventUseCase getEventUseCase;
+  private final Clock clock;
 
-  /** Creates a new controller with the given use case. */
-  public EventController(CreateEventUseCase createEventUseCase) {
+  /** Creates a new controller with the given use cases and clock. */
+  public EventController(
+      CreateEventUseCase createEventUseCase,
+      GetEventUseCase getEventUseCase,
+      Clock clock) {
     this.createEventUseCase = createEventUseCase;
+    this.getEventUseCase = getEventUseCase;
+    this.clock = clock;
   }
 
   @Override
   public ResponseEntity<CreateEventResponse> createEvent(
       CreateEventRequest request) {
+    ZoneId zoneId = parseTimezone(request.getTimezone());
+
     var command = new CreateEventCommand(
         request.getTitle(),
         request.getDescription(),
         request.getDateTime(),
+        zoneId,
         request.getLocation(),
         request.getExpiryDate()
     );
@@ -39,8 +58,36 @@ public class EventController implements EventsApi {
     response.setOrganizerToken(event.getOrganizerToken());
     response.setTitle(event.getTitle());
     response.setDateTime(event.getDateTime());
+    response.setTimezone(event.getTimezone().getId());
     response.setExpiryDate(event.getExpiryDate());
 
     return ResponseEntity.status(HttpStatus.CREATED).body(response);
   }
+
+  @Override
+  public ResponseEntity<GetEventResponse> getEvent(UUID token) {
+    Event event = getEventUseCase.getByEventToken(token)
+        .orElseThrow(() -> new EventNotFoundException(token));
+
+    var response = new GetEventResponse();
+    response.setEventToken(event.getEventToken());
+    response.setTitle(event.getTitle());
+    response.setDescription(event.getDescription());
+    response.setDateTime(event.getDateTime());
+    response.setTimezone(event.getTimezone().getId());
+    response.setLocation(event.getLocation());
+    response.setAttendeeCount(0);
+    response.setExpired(
+        event.getExpiryDate().isBefore(LocalDate.now(clock)));
+
+    return ResponseEntity.ok(response);
+  }
+
+  private static ZoneId parseTimezone(String timezone) {
+    try {
+      return ZoneId.of(timezone);
+    } catch (DateTimeException e) {
+      throw new InvalidTimezoneException(timezone);
+    }
+  }
 }

backend/src/main/java/de/fete/adapter/in/web/GlobalExceptionHandler.java

@@ -1,6 +1,8 @@
 package de.fete.adapter.in.web;
 
+import de.fete.application.service.EventNotFoundException;
 import de.fete.application.service.ExpiryDateInPastException;
+import de.fete.application.service.InvalidTimezoneException;
 import java.net.URI;
 import java.util.List;
 import java.util.Map;
@@ -57,6 +59,32 @@ public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {
         .body(problemDetail);
   }
 
+  /** Handles event not found. */
+  @ExceptionHandler(EventNotFoundException.class)
+  public ResponseEntity<ProblemDetail> handleEventNotFound(
+      EventNotFoundException ex) {
+    ProblemDetail problemDetail = ProblemDetail.forStatusAndDetail(
+        HttpStatus.NOT_FOUND, ex.getMessage());
+    problemDetail.setTitle("Event Not Found");
+    problemDetail.setType(URI.create("urn:problem-type:event-not-found"));
+    return ResponseEntity.status(HttpStatus.NOT_FOUND)
+        .contentType(MediaType.APPLICATION_PROBLEM_JSON)
+        .body(problemDetail);
+  }
+
+  /** Handles invalid timezone. */
+  @ExceptionHandler(InvalidTimezoneException.class)
+  public ResponseEntity<ProblemDetail> handleInvalidTimezone(
+      InvalidTimezoneException ex) {
+    ProblemDetail problemDetail = ProblemDetail.forStatusAndDetail(
+        HttpStatus.BAD_REQUEST, ex.getMessage());
+    problemDetail.setTitle("Invalid Timezone");
+    problemDetail.setType(URI.create("urn:problem-type:invalid-timezone"));
+    return ResponseEntity.badRequest()
+        .contentType(MediaType.APPLICATION_PROBLEM_JSON)
+        .body(problemDetail);
+  }
+
   /** Catches all unhandled exceptions. */
   @ExceptionHandler(Exception.class)
   public ResponseEntity<ProblemDetail> handleAll(Exception ex) {

backend/src/main/java/de/fete/adapter/out/persistence/EventJpaEntity.java

@@ -34,6 +34,9 @@ public class EventJpaEntity {
   @Column(name = "date_time", nullable = false)
   private OffsetDateTime dateTime;
 
+  @Column(nullable = false, length = 64)
+  private String timezone;
+
   @Column(length = 500)
   private String location;
 
@@ -103,6 +106,16 @@ public class EventJpaEntity {
     this.dateTime = dateTime;
   }
 
+  /** Returns the IANA timezone name. */
+  public String getTimezone() {
+    return timezone;
+  }
+
+  /** Sets the IANA timezone name. */
+  public void setTimezone(String timezone) {
+    this.timezone = timezone;
+  }
+
   /** Returns the event location. */
   public String getLocation() {
     return location;

backend/src/main/java/de/fete/adapter/out/persistence/EventPersistenceAdapter.java

@@ -2,6 +2,7 @@ package de.fete.adapter.out.persistence;
 
 import de.fete.domain.model.Event;
 import de.fete.domain.port.out.EventRepository;
+import java.time.ZoneId;
 import java.util.Optional;
 import java.util.UUID;
 import org.springframework.stereotype.Repository;
@@ -37,6 +38,7 @@ public class EventPersistenceAdapter implements EventRepository {
     entity.setTitle(event.getTitle());
     entity.setDescription(event.getDescription());
     entity.setDateTime(event.getDateTime());
+    entity.setTimezone(event.getTimezone().getId());
     entity.setLocation(event.getLocation());
     entity.setExpiryDate(event.getExpiryDate());
     entity.setCreatedAt(event.getCreatedAt());
@@ -51,6 +53,7 @@ public class EventPersistenceAdapter implements EventRepository {
     event.setTitle(entity.getTitle());
     event.setDescription(entity.getDescription());
     event.setDateTime(entity.getDateTime());
+    event.setTimezone(ZoneId.of(entity.getTimezone()));
     event.setLocation(entity.getLocation());
     event.setExpiryDate(entity.getExpiryDate());
     event.setCreatedAt(entity.getCreatedAt());

backend/src/main/java/de/fete/application/service/EventNotFoundException.java

@@ -0,0 +1,12 @@
+package de.fete.application.service;
+
+import java.util.UUID;
+
+/** Thrown when an event cannot be found by its token. */
+public class EventNotFoundException extends RuntimeException {
+
+  /** Creates a new exception for the given event token. */
+  public EventNotFoundException(UUID eventToken) {
+    super("Event not found: " + eventToken);
+  }
+}

backend/src/main/java/de/fete/application/service/EventService.java

@@ -3,16 +3,18 @@ package de.fete.application.service;
 import de.fete.domain.model.CreateEventCommand;
 import de.fete.domain.model.Event;
 import de.fete.domain.port.in.CreateEventUseCase;
+import de.fete.domain.port.in.GetEventUseCase;
 import de.fete.domain.port.out.EventRepository;
 import java.time.Clock;
 import java.time.LocalDate;
 import java.time.OffsetDateTime;
+import java.util.Optional;
 import java.util.UUID;
 import org.springframework.stereotype.Service;
 
-/** Application service implementing event creation. */
+/** Application service implementing event creation and retrieval. */
 @Service
-public class EventService implements CreateEventUseCase {
+public class EventService implements CreateEventUseCase, GetEventUseCase {
 
   private final EventRepository eventRepository;
   private final Clock clock;
@@ -35,10 +37,16 @@ public class EventService implements CreateEventUseCase {
     event.setTitle(command.title());
     event.setDescription(command.description());
     event.setDateTime(command.dateTime());
+    event.setTimezone(command.timezone());
     event.setLocation(command.location());
     event.setExpiryDate(command.expiryDate());
     event.setCreatedAt(OffsetDateTime.now(clock));
 
     return eventRepository.save(event);
   }
+
+  @Override
+  public Optional<Event> getByEventToken(UUID eventToken) {
+    return eventRepository.findByEventToken(eventToken);
+  }
 }

backend/src/main/java/de/fete/application/service/InvalidTimezoneException.java

@@ -0,0 +1,10 @@
+package de.fete.application.service;
+
+/** Thrown when an invalid IANA timezone ID is provided. */
+public class InvalidTimezoneException extends RuntimeException {
+
+  /** Creates a new exception for the given invalid timezone. */
+  public InvalidTimezoneException(String timezone) {
+    super("Invalid IANA timezone: " + timezone);
+  }
+}

backend/src/main/java/de/fete/domain/model/CreateEventCommand.java

@@ -2,12 +2,14 @@ package de.fete.domain.model;
 
 import java.time.LocalDate;
 import java.time.OffsetDateTime;
+import java.time.ZoneId;
 
 /** Command carrying the data needed to create an event. */
 public record CreateEventCommand(
     String title,
     String description,
     OffsetDateTime dateTime,
+    ZoneId timezone,
     String location,
     LocalDate expiryDate
 ) {}

backend/src/main/java/de/fete/domain/model/Event.java

@@ -2,6 +2,7 @@ package de.fete.domain.model;
 
 import java.time.LocalDate;
 import java.time.OffsetDateTime;
+import java.time.ZoneId;
 import java.util.UUID;
 
 /** Domain entity representing an event. */
@@ -13,6 +14,7 @@ public class Event {
   private String title;
   private String description;
   private OffsetDateTime dateTime;
+  private ZoneId timezone;
   private String location;
   private LocalDate expiryDate;
   private OffsetDateTime createdAt;
@@ -77,6 +79,16 @@ public class Event {
     this.dateTime = dateTime;
   }
 
+  /** Returns the IANA timezone. */
+  public ZoneId getTimezone() {
+    return timezone;
+  }
+
+  /** Sets the IANA timezone. */
+  public void setTimezone(ZoneId timezone) {
+    this.timezone = timezone;
+  }
+
   /** Returns the event location. */
   public String getLocation() {
     return location;

backend/src/main/java/de/fete/domain/port/in/GetEventUseCase.java

@@ -0,0 +1,12 @@
+package de.fete.domain.port.in;
+
+import de.fete.domain.model.Event;
+import java.util.Optional;
+import java.util.UUID;
+
+/** Inbound port for retrieving a public event by its token. */
+public interface GetEventUseCase {
+
+  /** Finds an event by its public event token. */
+  Optional<Event> getByEventToken(UUID eventToken);
+}

backend/src/main/resources/db/changelog/002-add-timezone-column.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<databaseChangeLog
+    xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
+        http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-latest.xsd">
+
+    <changeSet id="002-add-timezone-column" author="fete">
+        <addColumn tableName="events">
+            <column name="timezone" type="varchar(64)" defaultValue="UTC">
+                <constraints nullable="false"/>
+            </column>
+        </addColumn>
+    </changeSet>
+
+</databaseChangeLog>

backend/src/main/resources/db/changelog/db.changelog-master.xml

@@ -7,5 +7,6 @@
 
     <include file="db/changelog/000-baseline.xml"/>
     <include file="db/changelog/001-create-events-table.xml"/>
+    <include file="db/changelog/002-add-timezone-column.xml"/>
 
 </databaseChangeLog>

backend/src/main/resources/openapi/api.yaml

@@ -37,6 +37,34 @@ paths:
               schema:
                 $ref: "#/components/schemas/ValidationProblemDetail"
 
+  /events/{token}:
+    get:
+      operationId: getEvent
+      summary: Get public event details by token
+      tags:
+        - events
+      parameters:
+        - name: token
+          in: path
+          required: true
+          schema:
+            type: string
+            format: uuid
+          description: Public event token
+      responses:
+        "200":
+          description: Event found
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/GetEventResponse"
+        "404":
+          description: Event not found
+          content:
+            application/problem+json:
+              schema:
+                $ref: "#/components/schemas/ProblemDetail"
+
 components:
   schemas:
     CreateEventRequest:
@@ -44,6 +72,7 @@ components:
       required:
         - title
         - dateTime
+        - timezone
         - expiryDate
       properties:
         title:
@@ -58,6 +87,10 @@ components:
           format: date-time
           description: Event date and time with UTC offset (ISO 8601)
           example: "2026-03-15T20:00:00+01:00"
+        timezone:
+          type: string
+          description: IANA timezone of the organizer
+          example: "Europe/Berlin"
         location:
           type: string
           maxLength: 500
@@ -74,6 +107,7 @@ components:
         - organizerToken
         - title
         - dateTime
+        - timezone
         - expiryDate
       properties:
         eventToken:
@@ -93,11 +127,61 @@ components:
           type: string
           format: date-time
           example: "2026-03-15T20:00:00+01:00"
+        timezone:
+          type: string
+          description: IANA timezone of the organizer
+          example: "Europe/Berlin"
         expiryDate:
           type: string
           format: date
           example: "2026-06-15"
 
+    GetEventResponse:
+      type: object
+      required:
+        - eventToken
+        - title
+        - dateTime
+        - timezone
+        - attendeeCount
+        - expired
+      properties:
+        eventToken:
+          type: string
+          format: uuid
+          description: Public event token
+          example: "a1b2c3d4-e5f6-7890-abcd-ef1234567890"
+        title:
+          type: string
+          description: Event title
+          example: "Summer BBQ"
+        description:
+          type: string
+          description: Event description (absent if not set)
+          example: "Bring your own drinks!"
+        dateTime:
+          type: string
+          format: date-time
+          description: Event date/time with organizer's UTC offset
+          example: "2026-03-15T20:00:00+01:00"
+        timezone:
+          type: string
+          description: IANA timezone name of the organizer
+          example: "Europe/Berlin"
+        location:
+          type: string
+          description: Event location (absent if not set)
+          example: "Central Park, NYC"
+        attendeeCount:
+          type: integer
+          minimum: 0
+          description: Number of confirmed attendees (attending=true)
+          example: 12
+        expired:
+          type: boolean
+          description: Whether the event's expiry date has passed
+          example: false
+
     ProblemDetail:
       type: object
       properties:

backend/src/test/java/de/fete/adapter/in/web/EventControllerIntegrationTest.java

@@ -1,12 +1,22 @@
 package de.fete.adapter.in.web;
 
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
 import de.fete.TestcontainersConfig;
+import de.fete.adapter.in.web.model.CreateEventRequest;
+import de.fete.adapter.in.web.model.CreateEventResponse;
+import de.fete.adapter.out.persistence.EventJpaEntity;
+import de.fete.adapter.out.persistence.EventJpaRepository;
 import java.time.LocalDate;
+import java.time.OffsetDateTime;
+import java.time.ZoneOffset;
+import java.util.UUID;
 import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
@@ -23,63 +33,89 @@ class EventControllerIntegrationTest {
   @Autowired
   private MockMvc mockMvc;
 
+  @Autowired
+  private ObjectMapper objectMapper;
+
+  @Autowired
+  private EventJpaRepository jpaRepository;
+
+  // --- Create Event tests ---
+
   @Test
   void createEventWithValidBody() throws Exception {
-    String body =
-        """
-        {
-          "title": "Birthday Party",
-          "description": "Come celebrate!",
-          "dateTime": "2026-06-15T20:00:00+02:00",
-          "location": "Berlin",
-          "expiryDate": "%s"
-        }
-        """.formatted(LocalDate.now().plusDays(30));
+    var request = new CreateEventRequest()
+        .title("Birthday Party")
+        .description("Come celebrate!")
+        .dateTime(OffsetDateTime.of(2026, 6, 15, 20, 0, 0, 0, ZoneOffset.ofHours(2)))
+        .timezone("Europe/Berlin")
+        .location("Berlin")
+        .expiryDate(LocalDate.now().plusDays(30));
 
-    mockMvc.perform(post("/api/events")
+    var result = mockMvc.perform(post("/api/events")
             .contentType(MediaType.APPLICATION_JSON)
-            .content(body))
+            .content(objectMapper.writeValueAsString(request)))
         .andExpect(status().isCreated())
         .andExpect(jsonPath("$.eventToken").isNotEmpty())
         .andExpect(jsonPath("$.organizerToken").isNotEmpty())
         .andExpect(jsonPath("$.title").value("Birthday Party"))
+        .andExpect(jsonPath("$.timezone").value("Europe/Berlin"))
         .andExpect(jsonPath("$.dateTime").isNotEmpty())
-        .andExpect(jsonPath("$.expiryDate").isNotEmpty());
+        .andExpect(jsonPath("$.expiryDate").isNotEmpty())
+        .andReturn();
+
+    var response = objectMapper.readValue(
+        result.getResponse().getContentAsString(), CreateEventResponse.class);
+
+    EventJpaEntity persisted = jpaRepository
+        .findByEventToken(response.getEventToken()).orElseThrow();
+    assertThat(persisted.getTitle()).isEqualTo("Birthday Party");
+    assertThat(persisted.getDescription()).isEqualTo("Come celebrate!");
+    assertThat(persisted.getTimezone()).isEqualTo("Europe/Berlin");
+    assertThat(persisted.getLocation()).isEqualTo("Berlin");
+    assertThat(persisted.getExpiryDate()).isEqualTo(request.getExpiryDate());
+    assertThat(persisted.getDateTime().toInstant())
+        .isEqualTo(request.getDateTime().toInstant());
+    assertThat(persisted.getOrganizerToken()).isNotNull();
+    assertThat(persisted.getCreatedAt()).isNotNull();
   }
 
   @Test
   void createEventWithOptionalFieldsNull() throws Exception {
-    String body =
-        """
-        {
-          "title": "Minimal Event",
-          "dateTime": "2026-06-15T20:00:00+02:00",
-          "expiryDate": "%s"
-        }
-        """.formatted(LocalDate.now().plusDays(30));
+    var request = new CreateEventRequest()
+        .title("Minimal Event")
+        .dateTime(OffsetDateTime.of(2026, 6, 15, 20, 0, 0, 0, ZoneOffset.ofHours(2)))
+        .timezone("UTC")
+        .expiryDate(LocalDate.now().plusDays(30));
 
-    mockMvc.perform(post("/api/events")
+    var result = mockMvc.perform(post("/api/events")
             .contentType(MediaType.APPLICATION_JSON)
-            .content(body))
+            .content(objectMapper.writeValueAsString(request)))
         .andExpect(status().isCreated())
         .andExpect(jsonPath("$.eventToken").isNotEmpty())
         .andExpect(jsonPath("$.organizerToken").isNotEmpty())
-        .andExpect(jsonPath("$.title").value("Minimal Event"));
+        .andExpect(jsonPath("$.title").value("Minimal Event"))
+        .andReturn();
+
+    var response = objectMapper.readValue(
+        result.getResponse().getContentAsString(), CreateEventResponse.class);
+
+    EventJpaEntity persisted = jpaRepository
+        .findByEventToken(response.getEventToken()).orElseThrow();
+    assertThat(persisted.getTitle()).isEqualTo("Minimal Event");
+    assertThat(persisted.getDescription()).isNull();
+    assertThat(persisted.getLocation()).isNull();
   }
 
   @Test
   void createEventMissingTitleReturns400() throws Exception {
-    String body =
-        """
-        {
-          "dateTime": "2026-06-15T20:00:00+02:00",
-          "expiryDate": "%s"
-        }
-        """.formatted(LocalDate.now().plusDays(30));
+    var request = new CreateEventRequest()
+        .dateTime(OffsetDateTime.of(2026, 6, 15, 20, 0, 0, 0, ZoneOffset.ofHours(2)))
+        .timezone("Europe/Berlin")
+        .expiryDate(LocalDate.now().plusDays(30));
 
     mockMvc.perform(post("/api/events")
             .contentType(MediaType.APPLICATION_JSON)
-            .content(body))
+            .content(objectMapper.writeValueAsString(request)))
         .andExpect(status().isBadRequest())
         .andExpect(content().contentTypeCompatibleWith("application/problem+json"))
         .andExpect(jsonPath("$.title").value("Validation Failed"))
@@ -88,17 +124,14 @@ class EventControllerIntegrationTest {
 
   @Test
   void createEventMissingDateTimeReturns400() throws Exception {
-    String body =
-        """
-        {
-          "title": "No Date",
-          "expiryDate": "%s"
-        }
-        """.formatted(LocalDate.now().plusDays(30));
+    var request = new CreateEventRequest()
+        .title("No Date")
+        .timezone("Europe/Berlin")
+        .expiryDate(LocalDate.now().plusDays(30));
 
     mockMvc.perform(post("/api/events")
             .contentType(MediaType.APPLICATION_JSON)
-            .content(body))
+            .content(objectMapper.writeValueAsString(request)))
         .andExpect(status().isBadRequest())
         .andExpect(content().contentTypeCompatibleWith("application/problem+json"))
         .andExpect(jsonPath("$.fieldErrors").isArray());
@@ -106,17 +139,14 @@ class EventControllerIntegrationTest {
 
   @Test
   void createEventMissingExpiryDateReturns400() throws Exception {
-    String body =
-        """
-        {
-          "title": "No Expiry",
-          "dateTime": "2026-06-15T20:00:00+02:00"
-        }
-        """;
+    var request = new CreateEventRequest()
+        .title("No Expiry")
+        .dateTime(OffsetDateTime.of(2026, 6, 15, 20, 0, 0, 0, ZoneOffset.ofHours(2)))
+        .timezone("Europe/Berlin");
 
     mockMvc.perform(post("/api/events")
             .contentType(MediaType.APPLICATION_JSON)
-            .content(body))
+            .content(objectMapper.writeValueAsString(request)))
         .andExpect(status().isBadRequest())
         .andExpect(content().contentTypeCompatibleWith("application/problem+json"))
         .andExpect(jsonPath("$.fieldErrors").isArray());
@@ -124,18 +154,15 @@ class EventControllerIntegrationTest {
 
   @Test
   void createEventExpiryDateInPastReturns400() throws Exception {
-    String body =
-        """
-        {
-          "title": "Past Expiry",
-          "dateTime": "2026-06-15T20:00:00+02:00",
-          "expiryDate": "2025-01-01"
-        }
-        """;
+    var request = new CreateEventRequest()
+        .title("Past Expiry")
+        .dateTime(OffsetDateTime.of(2026, 6, 15, 20, 0, 0, 0, ZoneOffset.ofHours(2)))
+        .timezone("Europe/Berlin")
+        .expiryDate(LocalDate.of(2025, 1, 1));
 
     mockMvc.perform(post("/api/events")
             .contentType(MediaType.APPLICATION_JSON)
-            .content(body))
+            .content(objectMapper.writeValueAsString(request)))
         .andExpect(status().isBadRequest())
         .andExpect(content().contentTypeCompatibleWith("application/problem+json"))
         .andExpect(jsonPath("$.type").value("urn:problem-type:expiry-date-in-past"));
@@ -143,18 +170,15 @@ class EventControllerIntegrationTest {
 
   @Test
   void createEventExpiryDateTodayReturns400() throws Exception {
-    String body =
-        """
-        {
-          "title": "Today Expiry",
-          "dateTime": "2026-06-15T20:00:00+02:00",
-          "expiryDate": "%s"
-        }
-        """.formatted(LocalDate.now());
+    var request = new CreateEventRequest()
+        .title("Today Expiry")
+        .dateTime(OffsetDateTime.of(2026, 6, 15, 20, 0, 0, 0, ZoneOffset.ofHours(2)))
+        .timezone("Europe/Berlin")
+        .expiryDate(LocalDate.now());
 
     mockMvc.perform(post("/api/events")
             .contentType(MediaType.APPLICATION_JSON)
-            .content(body))
+            .content(objectMapper.writeValueAsString(request)))
         .andExpect(status().isBadRequest())
         .andExpect(content().contentTypeCompatibleWith("application/problem+json"))
         .andExpect(jsonPath("$.type").value("urn:problem-type:expiry-date-in-past"));
@@ -162,19 +186,101 @@ class EventControllerIntegrationTest {
 
   @Test
   void errorResponseContentTypeIsProblemJson() throws Exception {
-    String body =
-        """
-        {
-          "title": "",
-          "dateTime": "2026-06-15T20:00:00+02:00",
-          "expiryDate": "%s"
-        }
-        """.formatted(LocalDate.now().plusDays(30));
+    var request = new CreateEventRequest()
+        .title("")
+        .dateTime(OffsetDateTime.of(2026, 6, 15, 20, 0, 0, 0, ZoneOffset.ofHours(2)))
+        .timezone("Europe/Berlin")
+        .expiryDate(LocalDate.now().plusDays(30));
 
     mockMvc.perform(post("/api/events")
             .contentType(MediaType.APPLICATION_JSON)
-            .content(body))
+            .content(objectMapper.writeValueAsString(request)))
         .andExpect(status().isBadRequest())
         .andExpect(content().contentTypeCompatibleWith("application/problem+json"));
   }
+
+  @Test
+  void createEventWithInvalidTimezoneReturns400() throws Exception {
+    var request = new CreateEventRequest()
+        .title("Bad TZ")
+        .dateTime(OffsetDateTime.of(2026, 6, 15, 20, 0, 0, 0, ZoneOffset.ofHours(2)))
+        .timezone("Not/A/Zone")
+        .expiryDate(LocalDate.now().plusDays(30));
+
+    mockMvc.perform(post("/api/events")
+            .contentType(MediaType.APPLICATION_JSON)
+            .content(objectMapper.writeValueAsString(request)))
+        .andExpect(status().isBadRequest())
+        .andExpect(content().contentTypeCompatibleWith("application/problem+json"))
+        .andExpect(jsonPath("$.type").value("urn:problem-type:invalid-timezone"));
+  }
+
+  // --- GET /events/{token} tests ---
+
+  @Test
+  void getEventReturnsFullResponse() throws Exception {
+    EventJpaEntity entity = seedEvent(
+        "Summer BBQ", "Bring drinks!", "Europe/Berlin",
+        "Central Park", LocalDate.now().plusDays(30));
+
+    mockMvc.perform(get("/api/events/" + entity.getEventToken()))
+        .andExpect(status().isOk())
+        .andExpect(jsonPath("$.eventToken").value(entity.getEventToken().toString()))
+        .andExpect(jsonPath("$.title").value("Summer BBQ"))
+        .andExpect(jsonPath("$.description").value("Bring drinks!"))
+        .andExpect(jsonPath("$.timezone").value("Europe/Berlin"))
+        .andExpect(jsonPath("$.location").value("Central Park"))
+        .andExpect(jsonPath("$.attendeeCount").value(0))
+        .andExpect(jsonPath("$.expired").value(false))
+        .andExpect(jsonPath("$.dateTime").isNotEmpty());
+  }
+
+  @Test
+  void getEventWithOptionalFieldsAbsent() throws Exception {
+    EventJpaEntity entity = seedEvent(
+        "Minimal", null, "UTC", null, LocalDate.now().plusDays(30));
+
+    mockMvc.perform(get("/api/events/" + entity.getEventToken()))
+        .andExpect(status().isOk())
+        .andExpect(jsonPath("$.title").value("Minimal"))
+        .andExpect(jsonPath("$.description").doesNotExist())
+        .andExpect(jsonPath("$.location").doesNotExist())
+        .andExpect(jsonPath("$.attendeeCount").value(0));
+  }
+
+  @Test
+  void getEventNotFoundReturns404() throws Exception {
+    mockMvc.perform(get("/api/events/" + UUID.randomUUID()))
+        .andExpect(status().isNotFound())
+        .andExpect(content().contentTypeCompatibleWith("application/problem+json"))
+        .andExpect(jsonPath("$.type").value("urn:problem-type:event-not-found"));
+  }
+
+  @Test
+  void getExpiredEventReturnsExpiredTrue() throws Exception {
+    EventJpaEntity entity = seedEvent(
+        "Past Event", "It happened", "Europe/Berlin",
+        "Old Venue", LocalDate.now().minusDays(1));
+
+    mockMvc.perform(get("/api/events/" + entity.getEventToken()))
+        .andExpect(status().isOk())
+        .andExpect(jsonPath("$.title").value("Past Event"))
+        .andExpect(jsonPath("$.expired").value(true));
+  }
+
+  private EventJpaEntity seedEvent(
+      String title, String description, String timezone,
+      String location, LocalDate expiryDate) {
+    var entity = new EventJpaEntity();
+    entity.setEventToken(UUID.randomUUID());
+    entity.setOrganizerToken(UUID.randomUUID());
+    entity.setTitle(title);
+    entity.setDescription(description);
+    entity.setDateTime(OffsetDateTime.of(2026, 6, 15, 20, 0, 0, 0, ZoneOffset.ofHours(2)));
+    entity.setTimezone(timezone);
+    entity.setLocation(location);
+    entity.setExpiryDate(expiryDate);
+    entity.setCreatedAt(OffsetDateTime.now());
+    return jpaRepository.save(entity);
+  }
 }

backend/src/test/java/de/fete/adapter/out/persistence/EventPersistenceAdapterTest.java

@@ -7,6 +7,7 @@ import de.fete.domain.model.Event;
 import de.fete.domain.port.out.EventRepository;
 import java.time.LocalDate;
 import java.time.OffsetDateTime;
+import java.time.ZoneId;
 import java.time.ZoneOffset;
 import java.util.Optional;
 import java.util.UUID;
@@ -65,6 +66,7 @@ class EventPersistenceAdapterTest {
     event.setTitle("Full Event");
     event.setDescription("A detailed description");
     event.setDateTime(dateTime);
+    event.setTimezone(ZoneId.of("Europe/Berlin"));
     event.setLocation("Berlin, Germany");
     event.setExpiryDate(expiryDate);
     event.setCreatedAt(createdAt);
@@ -77,6 +79,7 @@ class EventPersistenceAdapterTest {
     assertThat(found.getTitle()).isEqualTo("Full Event");
     assertThat(found.getDescription()).isEqualTo("A detailed description");
     assertThat(found.getDateTime().toInstant()).isEqualTo(dateTime.toInstant());
+    assertThat(found.getTimezone()).isEqualTo(ZoneId.of("Europe/Berlin"));
     assertThat(found.getLocation()).isEqualTo("Berlin, Germany");
     assertThat(found.getExpiryDate()).isEqualTo(expiryDate);
     assertThat(found.getCreatedAt().toInstant()).isEqualTo(createdAt.toInstant());
@@ -89,6 +92,7 @@ class EventPersistenceAdapterTest {
     event.setTitle("Test Event");
     event.setDescription("Test description");
     event.setDateTime(OffsetDateTime.now().plusDays(7));
+    event.setTimezone(ZoneId.of("Europe/Berlin"));
     event.setLocation("Somewhere");
     event.setExpiryDate(LocalDate.now().plusDays(30));
     event.setCreatedAt(OffsetDateTime.now());

backend/src/test/java/de/fete/application/service/EventServiceTest.java

@@ -16,6 +16,8 @@ import java.time.LocalDate;
 import java.time.OffsetDateTime;
 import java.time.ZoneId;
 import java.time.ZoneOffset;
+import java.util.Optional;
+import java.util.UUID;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
@@ -50,6 +52,7 @@ class EventServiceTest {
         "Birthday Party",
         "Come celebrate!",
         OffsetDateTime.of(2026, 6, 15, 20, 0, 0, 0, ZoneOffset.ofHours(2)),
+        ZoneId.of("Europe/Berlin"),
         "Berlin",
         LocalDate.of(2026, 7, 15)
     );
@@ -58,28 +61,13 @@ class EventServiceTest {
 
     assertThat(result.getTitle()).isEqualTo("Birthday Party");
     assertThat(result.getDescription()).isEqualTo("Come celebrate!");
+    assertThat(result.getTimezone()).isEqualTo(ZoneId.of("Europe/Berlin"));
     assertThat(result.getLocation()).isEqualTo("Berlin");
     assertThat(result.getEventToken()).isNotNull();
     assertThat(result.getOrganizerToken()).isNotNull();
     assertThat(result.getCreatedAt()).isEqualTo(OffsetDateTime.now(FIXED_CLOCK));
   }
 
-  @Test
-  void eventTokenAndOrganizerTokenAreDifferent() {
-    when(eventRepository.save(any(Event.class)))
-        .thenAnswer(invocation -> invocation.getArgument(0));
-
-    var command = new CreateEventCommand(
-        "Test", null,
-        OffsetDateTime.now(FIXED_CLOCK).plusDays(1), null,
-        LocalDate.now(FIXED_CLOCK).plusDays(30)
-    );
-
-    Event result = eventService.createEvent(command);
-
-    assertThat(result.getEventToken()).isNotEqualTo(result.getOrganizerToken());
-  }
-
   @Test
   void repositorySaveCalledExactlyOnce() {
     when(eventRepository.save(any(Event.class)))
@@ -87,7 +75,7 @@ class EventServiceTest {
 
     var command = new CreateEventCommand(
         "Test", null,
-        OffsetDateTime.now(FIXED_CLOCK).plusDays(1), null,
+        OffsetDateTime.now(FIXED_CLOCK).plusDays(1), ZONE, null,
         LocalDate.now(FIXED_CLOCK).plusDays(30)
     );
 
@@ -102,7 +90,7 @@ class EventServiceTest {
   void expiryDateTodayThrowsException() {
     var command = new CreateEventCommand(
         "Test", null,
-        OffsetDateTime.now(FIXED_CLOCK).plusDays(1), null,
+        OffsetDateTime.now(FIXED_CLOCK).plusDays(1), ZONE, null,
         LocalDate.now(FIXED_CLOCK)
     );
 
@@ -114,7 +102,7 @@ class EventServiceTest {
   void expiryDateInPastThrowsException() {
     var command = new CreateEventCommand(
         "Test", null,
-        OffsetDateTime.now(FIXED_CLOCK).plusDays(1), null,
+        OffsetDateTime.now(FIXED_CLOCK).plusDays(1), ZONE, null,
         LocalDate.now(FIXED_CLOCK).minusDays(5)
     );
 
@@ -129,7 +117,7 @@ class EventServiceTest {
 
     var command = new CreateEventCommand(
         "Test", null,
-        OffsetDateTime.now(FIXED_CLOCK).plusDays(1), null,
+        OffsetDateTime.now(FIXED_CLOCK).plusDays(1), ZONE, null,
         LocalDate.now(FIXED_CLOCK).plusDays(1)
     );
 
@@ -137,4 +125,51 @@ class EventServiceTest {
 
     assertThat(result.getExpiryDate()).isEqualTo(LocalDate.of(2026, 3, 6));
   }
+
+  // --- GetEventUseCase tests (T004) ---
+
+  @Test
+  void getByEventTokenReturnsEvent() {
+    UUID token = UUID.randomUUID();
+    var event = new Event();
+    event.setEventToken(token);
+    event.setTitle("Found Event");
+    when(eventRepository.findByEventToken(token))
+        .thenReturn(Optional.of(event));
+
+    Optional<Event> result = eventService.getByEventToken(token);
+
+    assertThat(result).isPresent();
+    assertThat(result.get().getTitle()).isEqualTo("Found Event");
+  }
+
+  @Test
+  void getByEventTokenReturnsEmptyForUnknownToken() {
+    UUID token = UUID.randomUUID();
+    when(eventRepository.findByEventToken(token))
+        .thenReturn(Optional.empty());
+
+    Optional<Event> result = eventService.getByEventToken(token);
+
+    assertThat(result).isEmpty();
+  }
+
+  // --- Timezone validation tests (T006) ---
+
+  @Test
+  void createEventWithValidTimezoneSucceeds() {
+    when(eventRepository.save(any(Event.class)))
+        .thenAnswer(invocation -> invocation.getArgument(0));
+
+    var command = new CreateEventCommand(
+        "Test", null,
+        OffsetDateTime.now(FIXED_CLOCK).plusDays(1),
+        ZoneId.of("America/New_York"), null,
+        LocalDate.now(FIXED_CLOCK).plusDays(30)
+    );
+
+    Event result = eventService.createEvent(command);
+
+    assertThat(result.getTimezone()).isEqualTo(ZoneId.of("America/New_York"));
+  }
 }

frontend/e2e/event-create.spec.ts

@@ -12,7 +12,7 @@ test.describe('US-1: Create an event', () => {
     await expect(page.getByText('Expiry date is required.')).toBeVisible()
   })
 
-  test('creates an event and redirects to stub page', async ({ page }) => {
+  test('creates an event and redirects to event detail page', async ({ page }) => {
     await page.goto('/create')
 
     await page.getByLabel(/title/i).fill('Summer BBQ')
@@ -24,7 +24,6 @@ test.describe('US-1: Create an event', () => {
     await page.getByRole('button', { name: /create event/i }).click()
 
     await expect(page).toHaveURL(/\/events\/.+/)
-    await expect(page.getByText('Event created!')).toBeVisible()
   })
 
   test('stores event data in localStorage after creation', async ({ page }) => {

frontend/e2e/event-view.spec.ts

@@ -0,0 +1,127 @@
+import { http, HttpResponse } from 'msw'
+import { test, expect } from './msw-setup'
+
+const fullEvent = {
+  eventToken: 'a1b2c3d4-e5f6-7890-abcd-ef1234567890',
+  title: 'Summer BBQ',
+  description: 'Bring your own drinks!',
+  dateTime: '2026-03-15T20:00:00+01:00',
+  timezone: 'Europe/Berlin',
+  location: 'Central Park, NYC',
+  attendeeCount: 12,
+  expired: false,
+}
+
+test.describe('US-1: View event details', () => {
+  test('displays all event fields for a valid event', async ({ page, network }) => {
+    network.use(
+      http.get('*/api/events/:token', () => {
+        return HttpResponse.json(fullEvent)
+      }),
+    )
+
+    await page.goto(`/events/${fullEvent.eventToken}`)
+
+    await expect(page.getByRole('heading', { name: 'Summer BBQ' })).toBeVisible()
+    await expect(page.getByText('Bring your own drinks!')).toBeVisible()
+    await expect(page.getByText('Central Park, NYC')).toBeVisible()
+    await expect(page.getByText('12')).toBeVisible()
+    await expect(page.getByText('Europe/Berlin')).toBeVisible()
+    await expect(page.getByText('2026')).toBeVisible()
+  })
+
+  test('does not load external resources', async ({ page, network }) => {
+    const externalRequests: string[] = []
+    page.on('request', (req) => {
+      const url = new URL(req.url())
+      if (!['localhost', '127.0.0.1'].includes(url.hostname)) {
+        externalRequests.push(req.url())
+      }
+    })
+
+    network.use(
+      http.get('*/api/events/:token', () => {
+        return HttpResponse.json(fullEvent)
+      }),
+    )
+
+    await page.goto(`/events/${fullEvent.eventToken}`)
+    await expect(page.getByRole('heading', { name: 'Summer BBQ' })).toBeVisible()
+
+    expect(externalRequests).toEqual([])
+  })
+})
+
+test.describe('US-2: View expired event', () => {
+  test('shows "event has ended" banner for expired event', async ({ page, network }) => {
+    network.use(
+      http.get('*/api/events/:token', () => {
+        return HttpResponse.json({ ...fullEvent, expired: true })
+      }),
+    )
+
+    await page.goto(`/events/${fullEvent.eventToken}`)
+
+    await expect(page.getByText('This event has ended.')).toBeVisible()
+  })
+})
+
+test.describe('US-4: Event not found', () => {
+  test('shows "event not found" for unknown token', async ({ page, network }) => {
+    network.use(
+      http.get('*/api/events/:token', () => {
+        return HttpResponse.json(
+          { type: 'urn:problem-type:event-not-found', title: 'Event Not Found', status: 404, detail: 'Event not found.' },
+          { status: 404, headers: { 'Content-Type': 'application/problem+json' } },
+        )
+      }),
+    )
+
+    await page.goto('/events/00000000-0000-0000-0000-000000000000')
+
+    await expect(page.getByText('Event not found.')).toBeVisible()
+    // No event data visible
+    await expect(page.locator('.detail__title')).not.toBeVisible()
+  })
+})
+
+test.describe('Server error', () => {
+  test('shows error message and retry button on 500', async ({ page, network }) => {
+    network.use(
+      http.get('*/api/events/:token', () => {
+        return HttpResponse.json(
+          { type: 'about:blank', title: 'Internal Server Error', status: 500, detail: 'An unexpected error occurred.' },
+          { status: 500, headers: { 'Content-Type': 'application/problem+json' } },
+        )
+      }),
+    )
+
+    await page.goto(`/events/${fullEvent.eventToken}`)
+
+    await expect(page.getByText('Something went wrong.')).toBeVisible()
+    await expect(page.getByRole('button', { name: 'Retry' })).toBeVisible()
+  })
+
+  test('retry button re-fetches the event', async ({ page, network }) => {
+    let callCount = 0
+    network.use(
+      http.get('*/api/events/:token', () => {
+        callCount++
+        if (callCount === 1) {
+          return HttpResponse.json(
+            { type: 'about:blank', title: 'Error', status: 500 },
+            { status: 500, headers: { 'Content-Type': 'application/problem+json' } },
+          )
+        }
+        return HttpResponse.json(fullEvent)
+      }),
+    )
+
+    await page.goto(`/events/${fullEvent.eventToken}`)
+    await expect(page.getByText('Something went wrong.')).toBeVisible()
+
+    await page.getByRole('button', { name: 'Retry' }).click()
+
+    await expect(page.getByRole('heading', { name: 'Summer BBQ' })).toBeVisible()
+  })
+})

frontend/package-lock.json

@@ -23,17 +23,17 @@
         "@vitest/eslint-plugin": "^1.6.9",
         "@vue/eslint-config-typescript": "^14.7.0",
         "@vue/test-utils": "^2.4.6",
-        "@vue/tsconfig": "^0.8.1",
+        "@vue/tsconfig": "^0.9.0",
         "eslint": "^10.0.2",
         "eslint-config-prettier": "^10.1.8",
-        "eslint-plugin-oxlint": "~1.50.0",
+        "eslint-plugin-oxlint": "~1.51.0",
         "eslint-plugin-vue": "~10.8.0",
         "jiti": "^2.6.1",
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+        "@oxlint/binding-darwin-arm64": "1.51.0",
+        "@oxlint/binding-darwin-x64": "1.51.0",
+        "@oxlint/binding-freebsd-x64": "1.51.0",
+        "@oxlint/binding-linux-arm-gnueabihf": "1.51.0",
+        "@oxlint/binding-linux-arm-musleabihf": "1.51.0",
+        "@oxlint/binding-linux-arm64-gnu": "1.51.0",
+        "@oxlint/binding-linux-arm64-musl": "1.51.0",
+        "@oxlint/binding-linux-ppc64-gnu": "1.51.0",
+        "@oxlint/binding-linux-riscv64-gnu": "1.51.0",
+        "@oxlint/binding-linux-riscv64-musl": "1.51.0",
+        "@oxlint/binding-linux-s390x-gnu": "1.51.0",
+        "@oxlint/binding-linux-x64-gnu": "1.51.0",
+        "@oxlint/binding-linux-x64-musl": "1.51.0",
+        "@oxlint/binding-openharmony-arm64": "1.51.0",
+        "@oxlint/binding-win32-arm64-msvc": "1.51.0",
+        "@oxlint/binding-win32-ia32-msvc": "1.51.0",
+        "@oxlint/binding-win32-x64-msvc": "1.51.0"
       },
       "peerDependencies": {
-        "oxlint-tsgolint": ">=0.14.1"
+        "oxlint-tsgolint": ">=0.15.0"
       },
       "peerDependenciesMeta": {
         "oxlint-tsgolint": {

frontend/package.json

@@ -35,17 +35,17 @@
     "@vitest/eslint-plugin": "^1.6.9",
     "@vue/eslint-config-typescript": "^14.7.0",
     "@vue/test-utils": "^2.4.6",
-    "@vue/tsconfig": "^0.8.1",
+    "@vue/tsconfig": "^0.9.0",
     "eslint": "^10.0.2",
     "eslint-config-prettier": "^10.1.8",
-    "eslint-plugin-oxlint": "~1.50.0",
+    "eslint-plugin-oxlint": "~1.51.0",
     "eslint-plugin-vue": "~10.8.0",
     "jiti": "^2.6.1",
     "jsdom": "^28.1.0",
     "msw": "^2.12.10",
     "npm-run-all2": "^8.0.4",
     "openapi-typescript": "^7.13.0",
-    "oxlint": "~1.50.0",
+    "oxlint": "~1.51.0",
     "prettier": "3.8.1",
     "typescript": "~5.9.3",
     "vite": "^7.3.1",

frontend/src/assets/main.css

@@ -163,6 +163,19 @@ textarea.form-field {
   padding-left: 0.25rem;
 }
 
+/* Skeleton shimmer loading state */
+.skeleton {
+  background: linear-gradient(90deg, var(--color-card) 25%, #e0e0e0 50%, var(--color-card) 75%);
+  background-size: 200% 100%;
+  animation: shimmer 1.5s infinite;
+  border-radius: var(--radius-card);
+}
+
+@keyframes shimmer {
+  0% { background-position: 200% 0; }
+  100% { background-position: -200% 0; }
+}
+
 /* Utility */
 .text-center {
   text-align: center;

frontend/src/router/index.ts

@@ -17,7 +17,7 @@ const router = createRouter({
     {
       path: '/events/:token',
       name: 'event',
-      component: () => import('../views/EventStubView.vue'),
+      component: () => import('../views/EventDetailView.vue'),
     },
   ],
 })

frontend/src/views/EventCreateView.vue

@@ -184,6 +184,7 @@ async function handleSubmit() {
         title: form.title.trim(),
         description: form.description.trim() || undefined,
         dateTime: dateTimeWithOffset,
+        timezone: Intl.DateTimeFormat().resolvedOptions().timeZone,
         location: form.location.trim() || undefined,
         expiryDate: form.expiryDate,
       },

frontend/src/views/EventDetailView.vue

@@ -0,0 +1,214 @@
+<template>
+  <main class="detail">
+    <header class="detail__header">
+      <RouterLink to="/" class="detail__back" aria-label="Back to home">&larr;</RouterLink>
+      <span class="detail__brand">fete</span>
+    </header>
+
+    <!-- Loading state -->
+    <div v-if="state === 'loading'" class="detail__card" aria-busy="true" aria-label="Loading event details">
+      <div class="skeleton skeleton--title" />
+      <div class="skeleton skeleton--line" />
+      <div class="skeleton skeleton--line skeleton--short" />
+      <div class="skeleton skeleton--line" />
+    </div>
+
+    <!-- Loaded state -->
+    <div v-else-if="state === 'loaded' && event" class="detail__card">
+      <h1 class="detail__title">{{ event.title }}</h1>
+
+      <dl class="detail__fields">
+        <div class="detail__field">
+          <dt class="detail__label">Date &amp; Time</dt>
+          <dd class="detail__value">{{ formattedDateTime }}</dd>
+        </div>
+
+        <div v-if="event.description" class="detail__field">
+          <dt class="detail__label">Description</dt>
+          <dd class="detail__value">{{ event.description }}</dd>
+        </div>
+
+        <div v-if="event.location" class="detail__field">
+          <dt class="detail__label">Location</dt>
+          <dd class="detail__value">{{ event.location }}</dd>
+        </div>
+
+        <div class="detail__field">
+          <dt class="detail__label">Attendees</dt>
+          <dd class="detail__value">{{ event.attendeeCount }}</dd>
+        </div>
+      </dl>
+
+      <div v-if="event.expired" class="detail__banner detail__banner--expired" role="status">
+        This event has ended.
+      </div>
+    </div>
+
+    <!-- Not found state -->
+    <div v-else-if="state === 'not-found'" class="detail__card detail__card--center" role="status">
+      <p class="detail__message">Event not found.</p>
+    </div>
+
+    <!-- Error state -->
+    <div v-else-if="state === 'error'" class="detail__card detail__card--center" role="alert">
+      <p class="detail__message">Something went wrong.</p>
+      <button class="btn-primary" type="button" @click="fetchEvent">Retry</button>
+    </div>
+  </main>
+</template>
+
+<script setup lang="ts">
+import { ref, computed, onMounted } from 'vue'
+import { RouterLink, useRoute } from 'vue-router'
+import { api } from '@/api/client'
+import type { components } from '@/api/schema'
+
+type GetEventResponse = components['schemas']['GetEventResponse']
+type State = 'loading' | 'loaded' | 'not-found' | 'error'
+
+const route = useRoute()
+const state = ref<State>('loading')
+const event = ref<GetEventResponse | null>(null)
+
+const formattedDateTime = computed(() => {
+  if (!event.value) return ''
+  const formatted = new Intl.DateTimeFormat(undefined, {
+    dateStyle: 'long',
+    timeStyle: 'short',
+  }).format(new Date(event.value.dateTime))
+  return `${formatted} (${event.value.timezone})`
+})
+
+async function fetchEvent() {
+  state.value = 'loading'
+  event.value = null
+
+  try {
+    const { data, error, response } = await api.GET('/events/{token}', {
+      params: { path: { token: route.params.token as string } },
+    })
+
+    if (error) {
+      state.value = response.status === 404 ? 'not-found' : 'error'
+      return
+    }
+
+    event.value = data!
+    state.value = 'loaded'
+  } catch {
+    state.value = 'error'
+  }
+}
+
+onMounted(fetchEvent)
+</script>
+
+<style scoped>
+.detail {
+  display: flex;
+  flex-direction: column;
+  gap: var(--spacing-2xl);
+  padding-top: var(--spacing-lg);
+}
+
+.detail__header {
+  display: flex;
+  align-items: center;
+  gap: var(--spacing-sm);
+}
+
+.detail__back {
+  color: var(--color-text-on-gradient);
+  font-size: 1.5rem;
+  text-decoration: none;
+  line-height: 1;
+}
+
+.detail__brand {
+  font-size: 1.3rem;
+  font-weight: 700;
+  color: var(--color-text-on-gradient);
+}
+
+.detail__card {
+  background: var(--color-card);
+  border-radius: var(--radius-card);
+  padding: var(--spacing-xl);
+  box-shadow: var(--shadow-card);
+  display: flex;
+  flex-direction: column;
+  gap: var(--spacing-lg);
+}
+
+.detail__card--center {
+  align-items: center;
+  text-align: center;
+}
+
+.detail__title {
+  font-size: 1.4rem;
+  font-weight: 700;
+  color: var(--color-text);
+  word-break: break-word;
+}
+
+.detail__fields {
+  display: flex;
+  flex-direction: column;
+  gap: var(--spacing-md);
+}
+
+.detail__field {
+  display: flex;
+  flex-direction: column;
+  gap: 0.15rem;
+}
+
+.detail__label {
+  font-size: 0.8rem;
+  font-weight: 700;
+  color: #888;
+  text-transform: uppercase;
+  letter-spacing: 0.04em;
+}
+
+.detail__value {
+  font-size: 0.95rem;
+  color: var(--color-text);
+  word-break: break-word;
+}
+
+.detail__banner {
+  padding: var(--spacing-sm) var(--spacing-md);
+  border-radius: var(--radius-card);
+  font-weight: 600;
+  font-size: 0.9rem;
+  text-align: center;
+}
+
+.detail__banner--expired {
+  background: #fff3e0;
+  color: #e65100;
+}
+
+.detail__message {
+  font-size: 1rem;
+  font-weight: 600;
+  color: var(--color-text);
+}
+
+/* Skeleton sizes */
+.skeleton--title {
+  height: 1.6rem;
+  width: 60%;
+}
+
+.skeleton--line {
+  height: 1rem;
+  width: 80%;
+}
+
+.skeleton--short {
+  width: 40%;
+}
+</style>

frontend/src/views/__tests__/EventCreateView.spec.ts

@@ -173,6 +173,7 @@ describe('EventCreateView', () => {
         organizerToken: 'org-456',
         title: 'Birthday Party',
         dateTime: '2026-12-25T18:00:00+01:00',
+        timezone: 'Europe/Berlin',
         expiryDate: '2026-12-24',
       },
       error: undefined,

frontend/src/views/__tests__/EventDetailView.spec.ts

@@ -0,0 +1,198 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest'
+import { mount, flushPromises } from '@vue/test-utils'
+import { createRouter, createMemoryHistory } from 'vue-router'
+import EventDetailView from '../EventDetailView.vue'
+import { api } from '@/api/client'
+
+vi.mock('@/api/client', () => ({
+  api: {
+    GET: vi.fn(),
+  },
+}))
+
+function createTestRouter(_token?: string) {
+  return createRouter({
+    history: createMemoryHistory(),
+    routes: [
+      { path: '/', name: 'home', component: { template: '<div />' } },
+      { path: '/events/:token', name: 'event', component: EventDetailView },
+    ],
+  })
+}
+
+async function mountWithToken(token = 'test-token') {
+  const router = createTestRouter(token)
+  await router.push(`/events/${token}`)
+  await router.isReady()
+  return mount(EventDetailView, {
+    global: { plugins: [router] },
+  })
+}
+
+const fullEvent = {
+  eventToken: 'abc-123',
+  title: 'Summer BBQ',
+  description: 'Bring your own drinks!',
+  dateTime: '2026-03-15T20:00:00+01:00',
+  timezone: 'Europe/Berlin',
+  location: 'Central Park, NYC',
+  attendeeCount: 12,
+  expired: false,
+}
+
+beforeEach(() => {
+  vi.restoreAllMocks()
+})
+
+describe('EventDetailView', () => {
+  // T014: Loading state
+  it('renders skeleton shimmer placeholders while loading', async () => {
+    vi.mocked(api.GET).mockReturnValue(new Promise(() => {}))
+
+    const wrapper = await mountWithToken()
+
+    expect(wrapper.find('[aria-busy="true"]').exists()).toBe(true)
+    expect(wrapper.findAll('.skeleton').length).toBeGreaterThanOrEqual(3)
+  })
+
+  // T013: Loaded state — all fields
+  it('renders all event fields when loaded', async () => {
+    vi.mocked(api.GET).mockResolvedValue({
+      data: fullEvent,
+      error: undefined,
+      response: new Response(null, { status: 200 }),
+    } as never)
+
+    const wrapper = await mountWithToken()
+    await flushPromises()
+
+    expect(wrapper.find('.detail__title').text()).toBe('Summer BBQ')
+    expect(wrapper.text()).toContain('Bring your own drinks!')
+    expect(wrapper.text()).toContain('Central Park, NYC')
+    expect(wrapper.text()).toContain('12')
+    expect(wrapper.text()).toContain('Europe/Berlin')
+  })
+
+  // T013: Loaded state — locale-formatted date/time
+  it('formats date/time with Intl.DateTimeFormat and timezone', async () => {
+    vi.mocked(api.GET).mockResolvedValue({
+      data: fullEvent,
+      error: undefined,
+      response: new Response(null, { status: 200 }),
+    } as never)
+
+    const wrapper = await mountWithToken()
+    await flushPromises()
+
+    const dateField = wrapper.findAll('.detail__value')[0]!
+    expect(dateField.text()).toContain('(Europe/Berlin)')
+    // The formatted date part is locale-dependent but should contain the year
+    expect(dateField.text()).toContain('2026')
+  })
+
+  // T013: Loaded state — optional fields absent
+  it('does not render description and location when absent', async () => {
+    vi.mocked(api.GET).mockResolvedValue({
+      data: {
+        ...fullEvent,
+        description: undefined,
+        location: undefined,
+        attendeeCount: 0,
+      },
+      error: undefined,
+      response: new Response(null, { status: 200 }),
+    } as never)
+
+    const wrapper = await mountWithToken()
+    await flushPromises()
+
+    expect(wrapper.text()).not.toContain('Description')
+    expect(wrapper.text()).not.toContain('Location')
+    expect(wrapper.text()).toContain('0')
+  })
+
+  // T020 (US2): Expired state
+  it('renders "event has ended" banner when expired', async () => {
+    vi.mocked(api.GET).mockResolvedValue({
+      data: { ...fullEvent, expired: true },
+      error: undefined,
+      response: new Response(null, { status: 200 }),
+    } as never)
+
+    const wrapper = await mountWithToken()
+    await flushPromises()
+
+    expect(wrapper.text()).toContain('This event has ended.')
+    expect(wrapper.find('.detail__banner--expired').exists()).toBe(true)
+  })
+
+  // T020 (US2): No expired banner when not expired
+  it('does not render expired banner when event is active', async () => {
+    vi.mocked(api.GET).mockResolvedValue({
+      data: fullEvent,
+      error: undefined,
+      response: new Response(null, { status: 200 }),
+    } as never)
+
+    const wrapper = await mountWithToken()
+    await flushPromises()
+
+    expect(wrapper.find('.detail__banner--expired').exists()).toBe(false)
+  })
+
+  // T023 (US4): Not found state
+  it('renders "event not found" when API returns 404', async () => {
+    vi.mocked(api.GET).mockResolvedValue({
+      data: undefined,
+      error: { type: 'about:blank', title: 'Not Found', status: 404 },
+      response: new Response(null, { status: 404 }),
+    } as never)
+
+    const wrapper = await mountWithToken()
+    await flushPromises()
+
+    expect(wrapper.text()).toContain('Event not found.')
+    // No event data in DOM
+    expect(wrapper.find('.detail__title').exists()).toBe(false)
+  })
+
+  // T027: Server error + retry
+  it('renders error state with retry button on server error', async () => {
+    vi.mocked(api.GET).mockResolvedValue({
+      data: undefined,
+      error: { type: 'about:blank', title: 'Internal Server Error', status: 500 },
+      response: new Response(null, { status: 500 }),
+    } as never)
+
+    const wrapper = await mountWithToken()
+    await flushPromises()
+
+    expect(wrapper.text()).toContain('Something went wrong.')
+    expect(wrapper.find('button').text()).toBe('Retry')
+  })
+
+  // T027: Retry button re-fetches
+  it('retry button triggers a new fetch', async () => {
+    vi.mocked(api.GET)
+      .mockResolvedValueOnce({
+        data: undefined,
+        error: { type: 'about:blank', title: 'Error', status: 500 },
+        response: new Response(null, { status: 500 }),
+      } as never)
+      .mockResolvedValueOnce({
+        data: fullEvent,
+        error: undefined,
+        response: new Response(null, { status: 200 }),
+      } as never)
+
+    const wrapper = await mountWithToken()
+    await flushPromises()
+
+    expect(wrapper.text()).toContain('Something went wrong.')
+
+    await wrapper.find('button').trigger('click')
+    await flushPromises()
+
+    expect(wrapper.find('.detail__title').text()).toBe('Summer BBQ')
+  })
+})

specs/007-view-event/contracts/get-event.yaml

@@ -0,0 +1,94 @@
+# OpenAPI contract addition for GET /events/{token}
+# To be merged into backend/src/main/resources/openapi/api.yaml
+
+paths:
+  /events/{token}:
+    get:
+      operationId: getEvent
+      summary: Get public event details by token
+      tags:
+        - events
+      parameters:
+        - name: token
+          in: path
+          required: true
+          schema:
+            type: string
+            format: uuid
+          description: Public event token
+      responses:
+        "200":
+          description: Event found
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/GetEventResponse"
+        "404":
+          description: Event not found
+          content:
+            application/problem+json:
+              schema:
+                $ref: "#/components/schemas/ProblemDetail"
+
+components:
+  schemas:
+    GetEventResponse:
+      type: object
+      required:
+        - eventToken
+        - title
+        - dateTime
+        - timezone
+        - attendeeCount
+        - expired
+      properties:
+        eventToken:
+          type: string
+          format: uuid
+          description: Public event token
+          example: "a1b2c3d4-e5f6-7890-abcd-ef1234567890"
+        title:
+          type: string
+          description: Event title
+          example: "Summer BBQ"
+        description:
+          type: string
+          description: Event description (absent if not set)
+          example: "Bring your own drinks!"
+        dateTime:
+          type: string
+          format: date-time
+          description: Event date/time with organizer's UTC offset
+          example: "2026-03-15T20:00:00+01:00"
+        timezone:
+          type: string
+          description: IANA timezone name of the organizer
+          example: "Europe/Berlin"
+        location:
+          type: string
+          description: Event location (absent if not set)
+          example: "Central Park, NYC"
+        attendeeCount:
+          type: integer
+          minimum: 0
+          description: Number of confirmed attendees (attending=true)
+          example: 12
+        expired:
+          type: boolean
+          description: Whether the event's expiry date has passed
+          example: false
+
+    # Modification to existing CreateEventRequest — add timezone field
+    # CreateEventRequest (additions):
+    #   timezone:
+    #     type: string
+    #     description: IANA timezone of the organizer
+    #     example: "Europe/Berlin"
+    #   (make required)
+
+    # Modification to existing CreateEventResponse — add timezone field
+    # CreateEventResponse (additions):
+    #   timezone:
+    #     type: string
+    #     description: IANA timezone of the organizer
+    #     example: "Europe/Berlin"

specs/007-view-event/data-model.md

@@ -0,0 +1,56 @@
+# Data Model: View Event Landing Page (007)
+
+**Date**: 2026-03-06
+
+## Entities
+
+### Event (modified — adds `timezone` field)
+
+| Field           | Type             | Required | Constraints              | Notes                            |
+|-----------------|------------------|----------|--------------------------|----------------------------------|
+| id              | Long             | yes      | BIGSERIAL, PK            | Internal only, never exposed     |
+| eventToken      | UUID             | yes      | UNIQUE, NOT NULL         | Public identifier in URLs        |
+| organizerToken  | UUID             | yes      | UNIQUE, NOT NULL         | Secret, never in public API      |
+| title           | String           | yes      | 1–200 chars              |                                  |
+| description     | String           | no       | max 2000 chars           |                                  |
+| dateTime        | OffsetDateTime   | yes      |                          | Organizer's original offset      |
+| timezone        | String           | yes      | IANA zone ID, max 64     | **NEW** — e.g. "Europe/Berlin"   |
+| location        | String           | no       | max 500 chars            |                                  |
+| expiryDate      | LocalDate        | yes      | Must be future at create | Auto-deletion trigger            |
+| createdAt       | OffsetDateTime   | yes      | Server-generated         |                                  |
+
+**Validation rules**:
+- `timezone` must be a valid IANA zone ID (`ZoneId.getAvailableZoneIds()`).
+- `expiryDate` must be in the future at creation time (existing rule).
+
+**State transitions**:
+- Active → Expired: when `expiryDate < today` (computed, not stored).
+- Active → Cancelled: future (US-18), adds `cancelledAt` + `cancellationMessage`.
+
+### RSVP (future — not created in this feature)
+
+Documented here for context only. Created when the RSVP feature (US-8+) is implemented.
+
+| Field      | Type    | Required | Constraints                  |
+|------------|---------|----------|------------------------------|
+| id         | Long    | yes      | BIGSERIAL, PK                |
+| eventId    | Long    | yes      | FK → events.id               |
+| guestName  | String  | yes      | 1–100 chars                  |
+| attending  | Boolean | yes      | true = attending             |
+| createdAt  | OffsetDateTime | yes | Server-generated           |
+
+## Relationships
+
+```
+Event 1 ←── * RSVP (future)
+```
+
+## Type Mapping (full stack)
+
+| Concept      | Java              | PostgreSQL    | OpenAPI             | TypeScript |
+|--------------|-------------------|---------------|---------------------|------------|
+| Event time   | `OffsetDateTime`  | `timestamptz` | `string` `date-time`| `string`   |
+| Timezone     | `String`          | `varchar(64)` | `string`            | `string`   |
+| Expiry date  | `LocalDate`       | `date`        | `string` `date`     | `string`   |
+| Token        | `UUID`            | `uuid`        | `string` `uuid`     | `string`   |
+| Count        | `int`             | `integer`     | `integer`           | `number`   |

specs/007-view-event/plan.md

@@ -0,0 +1,89 @@
+# Implementation Plan: View Event Landing Page
+
+**Branch**: `007-view-event` | **Date**: 2026-03-06 | **Spec**: [spec.md](spec.md)
+**Input**: Feature specification from `/specs/007-view-event/spec.md`
+
+## Summary
+
+Add a public event detail page at `/events/:token` that displays event information (title, date/time with IANA timezone, description, location, attendee count) without requiring authentication. The page handles four states: loaded, expired ("event has ended"), not found (404), and server error (retry button). Loading uses skeleton-shimmer placeholders. Backend adds `GET /events/{token}` endpoint and a `timezone` field to the Event model (cross-cutting change to US-1).
+
+## Technical Context
+
+**Language/Version**: Java 25 (backend), TypeScript 5.9 (frontend)
+**Primary Dependencies**: Spring Boot 3.5.x, Vue 3, Vue Router 5, openapi-fetch, openapi-typescript
+**Storage**: PostgreSQL (JPA via Spring Data, Liquibase migrations)
+**Testing**: JUnit (backend), Vitest (frontend unit), Playwright + MSW (frontend E2E)
+**Target Platform**: Self-hosted web application (Docker)
+**Project Type**: Web service + SPA
+**Performance Goals**: N/A (single-user scale, self-hosted)
+**Constraints**: No external resources (CDNs, fonts, tracking), WCAG AA, privacy-first
+**Scale/Scope**: Single new view + one new API endpoint + one cross-cutting model change
+
+## Constitution Check
+
+*GATE: Must pass before Phase 0 research. Re-check after Phase 1 design.*
+
+| Principle | Status | Notes |
+|-----------|--------|-------|
+| I. Privacy by Design | PASS | No PII exposed. Only attendee count shown (not names). No external resources. No tracking. |
+| II. Test-Driven Methodology | PASS | TDD enforced: backend unit tests, frontend unit tests, E2E tests per spec. |
+| III. API-First Development | PASS | OpenAPI spec updated first. Types generated. Response schemas include `example:` fields. |
+| IV. Simplicity & Quality | PASS | Minimal changes: one GET endpoint, one new view, one model field. `attendeeCount` returns 0 (no RSVP stub). Cancelled state deferred. |
+| V. Dependency Discipline | PASS | No new dependencies. Skeleton shimmer is CSS-only. |
+| VI. Accessibility | PASS | Semantic HTML, ARIA attributes, keyboard navigable, WCAG AA contrast via design system. |
+
+**Post-Phase-1 re-check**: All gates still pass. The `timezone` field addition is a justified cross-cutting change documented in research.md R-1.
+
+## Project Structure
+
+### Documentation (this feature)
+
+```text
+specs/007-view-event/
+├── plan.md              # This file
+├── spec.md              # Feature specification
+├── research.md          # Phase 0: research decisions
+├── data-model.md        # Phase 1: entity definitions
+├── quickstart.md        # Phase 1: implementation overview
+├── contracts/
+│   └── get-event.yaml   # Phase 1: GET endpoint contract
+└── tasks.md             # Phase 2: implementation tasks (via /speckit.tasks)
+```
+
+### Source Code (repository root)
+
+```text
+backend/
+├── src/main/java/de/fete/
+│   ├── domain/
+│   │   ├── model/Event.java                          # Add timezone field
+│   │   └── port/in/GetEventUseCase.java              # NEW: inbound port
+│   ├── application/service/EventService.java          # Implement GetEventUseCase
+│   ├── adapter/
+│   │   ├── in/web/EventController.java               # Implement getEvent()
+│   │   └── out/persistence/
+│   │       ├── EventJpaEntity.java                    # Add timezone column
+│   │       └── EventPersistenceAdapter.java           # Map timezone field
+│   └── config/
+├── src/main/resources/
+│   ├── openapi/api.yaml                               # Add GET endpoint + timezone
+│   └── db/changelog/                                  # Liquibase: add timezone column
+└── src/test/java/de/fete/                             # Unit + integration tests
+
+frontend/
+├── src/
+│   ├── api/schema.d.ts                                # Regenerated from OpenAPI
+│   ├── views/EventDetailView.vue                      # NEW: event detail page
+│   ├── views/EventCreateView.vue                      # Add timezone to create request
+│   ├── router/index.ts                                # Point /events/:token to EventDetailView
+│   └── assets/main.css                                # Skeleton shimmer styles
+├── e2e/
+│   └── event-view.spec.ts                             # NEW: E2E tests for view event
+└── src/__tests__/                                     # Unit tests for EventDetailView
+```
+
+**Structure Decision**: Existing web application structure (backend + frontend). No new packages or modules — extends existing hexagonal architecture with one new inbound port and one new frontend view.
+
+## Complexity Tracking
+
+No constitution violations. No entries needed.

specs/007-view-event/quickstart.md

@@ -0,0 +1,39 @@
+# Quickstart: View Event Landing Page (007)
+
+## What this feature does
+
+Adds a public event detail page at `/events/:token`. Guests open a shared link and see:
+- Event title, date/time (with IANA timezone), description, location
+- Count of confirmed attendees (no names)
+- "Event has ended" state for expired events
+- "Event not found" for invalid tokens
+- Skeleton shimmer while loading
+
+## Prerequisites
+
+- US-1 (Create Event) is implemented — Event entity, JPA persistence, POST endpoint exist.
+- No RSVP model yet — attendee count returns 0 until RSVP feature is built.
+
+## Key changes
+
+### Backend
+
+1. **OpenAPI**: Add `GET /events/{token}` endpoint + `GetEventResponse` schema. Add `timezone` field to `CreateEventRequest`, `CreateEventResponse`, and `GetEventResponse`.
+2. **Domain**: Add `timezone` (String) to `Event.java`.
+3. **Persistence**: Add `timezone` column to `EventJpaEntity`, Liquibase migration.
+4. **Use case**: New `GetEventUseCase` (inbound port) + implementation in `EventService`.
+5. **Controller**: `EventController` implements `getEvent()` — maps to `GetEventResponse`, computes `expired` and `attendeeCount`.
+
+### Frontend
+
+1. **API types**: Regenerate `schema.d.ts` from updated OpenAPI spec.
+2. **EventDetailView.vue**: New view component — fetches event by token, renders detail card.
+3. **Router**: Replace `EventStubView` import at `/events/:token` with `EventDetailView`.
+4. **States**: Loading (skeleton shimmer), loaded, expired, not-found, server-error (retry button).
+5. **Create form**: Send `timezone` field (auto-detected via `Intl.DateTimeFormat`).
+
+### Testing
+
+- Backend: Unit tests for `GetEventUseCase`, controller tests for GET endpoint (200, 404).
+- Frontend: Unit tests for EventDetailView (all states).
+- E2E: Playwright tests with MSW mocks for all states (loaded, expired, not-found, error).

specs/007-view-event/research.md

@@ -0,0 +1,100 @@
+# Research: View Event Landing Page (007)
+
+**Date**: 2026-03-06 | **Status**: Complete
+
+## R-1: Timezone Field (Cross-Cutting)
+
+**Decision**: Add `timezone` String field (IANA zone ID) to Event entity, JPA entity, and OpenAPI schemas (both Create and Get).
+
+**Rationale**: The spec requires displaying the IANA timezone name (e.g. "Europe/Berlin") alongside the event time. `OffsetDateTime` preserves the offset (e.g. `+01:00`) but loses the IANA zone name. Since Europe/Berlin and Africa/Lagos both use `+01:00`, the zone name must be stored separately.
+
+**Alternatives considered**:
+- Store `ZonedDateTime` instead of `OffsetDateTime` — rejected because `OffsetDateTime` is already the established type in the stack (see `datetime-best-practices.md`), and `ZonedDateTime` serialization is non-standard in JSON/OpenAPI.
+- Derive timezone from offset — rejected because offset-to-zone mapping is ambiguous.
+
+**Impact on US-1 (Create Event)**:
+- `CreateEventRequest` gains a required `timezone` field (string, IANA zone ID).
+- `CreateEventResponse` gains a `timezone` field.
+- Frontend auto-detects via `Intl.DateTimeFormat().resolvedOptions().timeZone`.
+- Backend validates against `java.time.ZoneId.getAvailableZoneIds()`.
+- JPA: new `VARCHAR(64)` column `timezone` on `events` table.
+- Liquibase changeset: add `timezone` column. Existing events without timezone get `UTC` as default (pre-launch, destructive migration acceptable).
+
+## R-2: GET Endpoint Design
+
+**Decision**: `GET /api/events/{token}` returns public event data. Uses the existing hexagonal architecture pattern.
+
+**Rationale**: Follows the established pattern from `POST /events`. The event token is the public identifier — no auth required.
+
+**Flow**:
+1. `EventController` implements generated `EventsApi.getEvent()`.
+2. New inbound port: `GetEventUseCase` with `getByEventToken(UUID): Optional<Event>`.
+3. `EventService` implements the use case, delegates to `EventRepository.findByEventToken()` (already exists).
+4. Controller maps domain `Event` to `GetEventResponse` DTO.
+5. 404 returns `ProblemDetail` (RFC 9457) — no event data leaked.
+
+**Alternatives considered**:
+- Separate `/event/{token}` path (singular) — rejected because OpenAPI groups by resource; `/events/{token}` is RESTful convention.
+- Note: Frontend route is `/event/:token` (spec clarification), but API path is `/api/events/{token}`. These are independent.
+
+## R-3: Attendee Count Without RSVP Model
+
+**Decision**: Include `attendeeCount` (integer) in the `GetEventResponse`. Return `0` until the RSVP feature (US-8+) is implemented.
+
+**Rationale**: FR-001 requires attendee count display. The API contract should be stable from the start — consumers should not need to change when RSVP is added later. Returning `0` is correct (no RSVPs exist yet).
+
+**Future hook**: When RSVP is implemented, `EventService` or a dedicated query will `COUNT(*) WHERE event_id = ? AND status = 'ATTENDING'`.
+
+**Alternatives considered**:
+- Omit `attendeeCount` until RSVP exists — rejected because it would require API consumers to handle the field's absence, then handle its presence later. Breaking change.
+- Add a stub RSVP table now — rejected (YAGNI, violates Principle IV).
+
+## R-4: Expired Event Detection
+
+**Decision**: Server-side. The `GetEventResponse` includes a boolean `expired` field, computed by comparing `expiryDate` with the server's current date.
+
+**Rationale**: Server is the source of truth for time. Client clocks may be wrong. The frontend uses this flag to toggle the "event has ended" state.
+
+**Computation**: `event.getExpiryDate().isBefore(LocalDate.now(clock))` — uses the injected `Clock` bean (already exists for testability in `EventService`).
+
+**Alternatives considered**:
+- Client-side comparison — rejected because client clock may differ from server, leading to inconsistent behavior.
+- Separate endpoint for status — rejected (over-engineering).
+
+## R-5: URL Pattern
+
+**Decision**: Frontend route stays at `/events/:token` (plural). API path is `/api/events/{token}`. Both use the plural RESTful convention consistently.
+
+**Rationale**: `/events/:token` is the standard REST resource pattern (collection + identifier). The existing router already uses this path. Consistency between frontend route and API resource name reduces cognitive overhead.
+
+**Impact**: No route change needed — the existing `/events/:token` route in the router is correct.
+
+## R-6: Skeleton Shimmer Loading State
+
+**Decision**: CSS-only shimmer animation using a gradient sweep. No additional dependencies.
+
+**Rationale**: The spec requires skeleton-shimmer placeholders during API loading. A CSS-only approach is lightweight and matches the dependency discipline principle.
+
+**Implementation pattern**:
+```css
+.skeleton {
+  background: linear-gradient(90deg, var(--color-card) 25%, #e0e0e0 50%, var(--color-card) 75%);
+  background-size: 200% 100%;
+  animation: shimmer 1.5s infinite;
+  border-radius: var(--radius-card);
+}
+@keyframes shimmer {
+  0% { background-position: 200% 0; }
+  100% { background-position: -200% 0; }
+}
+```
+
+Skeleton blocks match the approximate shape/size of the real content fields (title, date, location, etc.).
+
+## R-7: Cancelled Event State (Deferred)
+
+**Decision**: The `GetEventResponse` does NOT include cancellation fields yet. US-3 (view cancelled event) is explicitly deferred until US-18 (cancel event) is implemented.
+
+**Rationale**: Spec says "[Deferred until US-18 is implemented]". Adding unused fields violates Principle IV (KISS).
+
+**Future hook**: When US-18 lands, add `cancelled: boolean` and `cancellationMessage: string` to the response schema.

specs/007-view-event/spec.md

@@ -9,18 +9,18 @@
 
 ### User Story 1 - View event details as guest (Priority: P1)
 
-A guest receives a shared event link, opens it, and sees all relevant event information: title, description (if provided), date and time, location (if provided), and the list of confirmed attendees with a count.
+A guest receives a shared event link, opens it, and sees all relevant event information: title, description (if provided), date and time, location (if provided), and the count of confirmed attendees.
 
 **Why this priority**: Core value of the feature — without this, no other part of the event page is meaningful.
 
-**Independent Test**: Can be fully tested by navigating to a valid event URL and verifying all event fields are displayed correctly, including attendee list and count.
+**Independent Test**: Can be fully tested by navigating to a valid event URL and verifying all event fields are displayed correctly, including attendee count.
 
 **Acceptance Scenarios**:
 
 1. **Given** a valid event link, **When** a guest opens the URL, **Then** the page displays the event title, date and time, and attendee count.
 2. **Given** a valid event link for an event with optional fields set, **When** a guest opens the URL, **Then** the description and location are also displayed.
 3. **Given** a valid event link for an event with optional fields absent, **When** a guest opens the URL, **Then** only the required fields are shown — no placeholder text for missing optional fields.
-4. **Given** a valid event with RSVPs, **When** a guest opens the event page, **Then** the names of all confirmed attendees ("attending") are listed and a total count is shown.
+4. **Given** a valid event with RSVPs, **When** a guest opens the event page, **Then** only the total count of confirmed attendees is shown — individual names are NOT displayed to guests (names are only visible to the organizer via the organizer view).
 5. **Given** an event page, **When** it is rendered, **Then** no external resources (CDNs, fonts, tracking scripts) are loaded — all assets are served from the app's own domain.
 6. **Given** a guest with no account, **When** they open the event URL, **Then** the page loads without any login, account, or access code required.
 
@@ -70,9 +70,9 @@ A guest navigates to an event URL that no longer resolves — the event was dele
 
 ### Edge Cases
 
-- What happens when the event has no attendees yet? — Attendee list is empty; count shows 0.
+- What happens when the event has no attendees yet? — Count shows 0.
 - What happens when the event has been cancelled after US-18 is implemented? — Renders cancelled state with optional message; RSVP hidden. [Deferred]
-- What happens when the server is temporarily unavailable? — [NEEDS EXPANSION]
+- What happens when the server is temporarily unavailable? — The page displays a generic, friendly error message with a manual "Retry" button. No automatic retry.
 - How does the page behave when JavaScript is disabled? — Per Q-3 resolution: the app is a SPA; JavaScript-dependent rendering is acceptable.
 
 ## Requirements
@@ -81,7 +81,7 @@ A guest navigates to an event URL that no longer resolves — the event was dele
 
 - **FR-001**: The event page MUST display: title, date and time, and attendee count for any valid event.
 - **FR-002**: The event page MUST display description and location when those optional fields are set on the event.
-- **FR-003**: The event page MUST list the names of all confirmed attendees (those who RSVPed "attending").
+- **FR-003**: The public event page MUST display only the count of confirmed attendees. Individual attendee names MUST NOT be shown to guests — names are only visible to the organizer (organizer view, separate user story).
 - **FR-004**: If the event's expiry date has passed, the page MUST render a clear "this event has ended" state and MUST NOT show any RSVP actions.
 - **FR-005**: If the event has been cancelled (US-18), the page MUST display a "cancelled" state with the cancellation message (if provided) and MUST NOT show any RSVP actions. [Deferred until US-18 is implemented]
 - **FR-006**: If the event token does not match any event on the server, the page MUST display a clear "event not found" message — no partial data or error traces.
@@ -90,15 +90,29 @@ A guest navigates to an event URL that no longer resolves — the event was dele
 
 ### Key Entities
 
-- **Event**: Has a public event token (UUID in URL), title, optional description, date/time, optional location, expiry date, and optionally a cancelled state with message.
-- **RSVP**: Has a guest name and attending status; confirmed attendees (status = attending) are listed on the public event page.
+- **Event**: Has a public event token (UUID in URL), title, optional description, date/time (OffsetDateTime — displayed in the organizer's original timezone, no conversion to viewer timezone), IANA timezone name (e.g. `Europe/Berlin`, stored as separate field — required for human-readable timezone display), optional location, expiry date (LocalDate), and optionally a cancelled state with message. See `.specify/memory/research/datetime-best-practices.md` for full stack type mapping.
+  - **Note**: The IANA timezone requires a new `timezone` field on the Event entity and API schema. This impacts US-1 (Create Event) — the frontend must send the organizer's IANA zone ID alongside the OffsetDateTime.
+- **RSVP**: Has a guest name and binary attending status (attending / not attending — no "maybe"). Only the count of confirmed attendees (status = attending) is exposed on the public event page. Individual names are visible only in the organizer view, sorted alphabetically by name.
 
 ## Success Criteria
 
 ### Measurable Outcomes
 
 - **SC-001**: A guest who opens a valid event URL can see all set event fields (title, date/time, and any optional fields) without logging in.
-- **SC-002**: The attendee list and count reflect all current server-side RSVPs with attending status.
+- **SC-002**: The attendee count reflects all current server-side RSVPs with attending status. No individual names are exposed on the public event page.
 - **SC-003**: An expired event URL renders the "ended" state — RSVP controls are absent from the DOM, not merely hidden via CSS.
 - **SC-004**: An unknown event token URL renders a "not found" message — no event data, no server error details.
 - **SC-005**: No network requests to external domains are made when loading the event page.
+
+## Clarifications
+
+### Session 2026-03-06
+
+- Q: What should the event page display when the server is temporarily unavailable? → A: Generic friendly error state with a manual "Retry" button; no automatic retry.
+- Q: How should date/time be displayed regarding timezones? → A: Organizer timezone preserved — display the time exactly as entered by the organizer (OffsetDateTime), no conversion to viewer's local timezone. The IANA timezone name (e.g. "Europe/Berlin") MUST be displayed alongside the time. Requires a new `timezone` field on Event entity/API (impacts US-1).
+- Q: What is the URL pattern for event pages? → A: `/events/:token` (e.g. `/events/a1b2c3d4-...`). Plural, matching the RESTful API resource name.
+- Q: Should guest names be visible to other guests on the public event page? → A: No. Only the attendee count is shown to guests. Individual names are exclusively visible to the organizer, sorted alphabetically.
+- Q: How should the loading state look while the API call is in progress? → A: Skeleton-shimmer (placeholder blocks in field shape that shimmer until data arrives).
+- Q: Should the event page include OpenGraph meta tags for link previews? → A: Out of scope for US-007. Separate user story — generic app-branding OG-tags only, no event data exposed to crawlers. Noted in `.specify/memory/ideen.md`.
+- Q: Should date/time formatting adapt to the viewer's browser locale? → A: Yes, browser-locale-based via `Intl.DateTimeFormat` (e.g. DE: "15. März 2026, 20:00" / EN: "March 15, 2026, 8:00 PM").
+- Q: Is RSVP status binary or are there more states (e.g. "maybe")? → A: Binary — attending or not attending. No "maybe" status. Count reflects only confirmed attendees.

specs/007-view-event/tasks.md

@@ -0,0 +1,225 @@
+# Tasks: View Event Landing Page
+
+**Input**: Design documents from `/specs/007-view-event/`
+**Prerequisites**: plan.md, spec.md, research.md, data-model.md, contracts/get-event.yaml
+
+**Tests**: Included — constitution enforces Test-Driven Methodology (Principle II).
+
+**Organization**: Tasks grouped by user story. US3 (cancelled event) is deferred until US-18.
+
+## Format: `[ID] [P?] [Story] Description`
+
+- **[P]**: Can run in parallel (different files, no dependencies)
+- **[Story]**: Which user story this task belongs to (e.g., US1, US2, US4)
+- Exact file paths included in descriptions
+
+---
+
+## Phase 1: Setup (Cross-Cutting Schema Changes)
+
+**Purpose**: OpenAPI contract update, database migration, and type generation — prerequisites for all backend and frontend work.
+
+- [x] T001 Update OpenAPI spec: add `GET /events/{token}` endpoint, `GetEventResponse` schema, and `timezone` field to `CreateEventRequest`/`CreateEventResponse` in `backend/src/main/resources/openapi/api.yaml`
+- [x] T002 [P] Add Liquibase changeset: `timezone VARCHAR(64) NOT NULL DEFAULT 'UTC'` column on `events` table in `backend/src/main/resources/db/changelog/`
+- [x] T003 Regenerate frontend TypeScript types from updated OpenAPI spec in `frontend/src/api/schema.d.ts`
+
+**Checkpoint**: OpenAPI contract finalized, DB schema ready, frontend types available.
+
+---
+
+## Phase 2: Foundational (Backend — Blocks All User Stories)
+
+**Purpose**: Domain model update, new GET use case, controller endpoint, and backend tests. All user stories depend on this.
+
+**CRITICAL**: No frontend user story work can begin until this phase is complete.
+
+### Backend Tests (TDD — write first, verify they fail)
+
+- [x] T004 [P] Backend unit tests for `GetEventUseCase`: test getByEventToken returns event, returns empty for unknown token, computes expired flag — in `backend/src/test/java/de/fete/`
+- [x] T005 [P] Backend controller tests for `GET /events/{token}`: test 200 with full response, 200 with optional fields absent, 404 with ProblemDetail — in `backend/src/test/java/de/fete/`
+- [x] T006 [P] Backend tests for timezone in Create Event flow: request validation (valid/invalid IANA zone), persistence round-trip — in `backend/src/test/java/de/fete/`
+
+### Backend Implementation
+
+- [x] T007 Add `timezone` field (String) to domain model in `backend/src/main/java/de/fete/domain/model/Event.java`
+- [x] T008 [P] Add `timezone` column to JPA entity and update persistence mapping in `backend/src/main/java/de/fete/adapter/out/persistence/EventJpaEntity.java` and `EventPersistenceAdapter.java`
+- [x] T009 [P] Update Create Event flow to accept and validate `timezone` (must be valid IANA zone ID via `ZoneId.getAvailableZoneIds()`) in `backend/src/main/java/de/fete/application/service/EventService.java` and `EventController.java`
+- [x] T010 Create `GetEventUseCase` inbound port with `getByEventToken(UUID): Optional<Event>` in `backend/src/main/java/de/fete/domain/port/in/GetEventUseCase.java`
+- [x] T011 Implement `GetEventUseCase` in `backend/src/main/java/de/fete/application/service/EventService.java` — delegates to existing `findByEventToken()` repository method
+- [x] T012 Implement `getEvent()` in `backend/src/main/java/de/fete/adapter/in/web/EventController.java` — maps domain Event to GetEventResponse, computes `expired` (expiryDate vs server clock) and `attendeeCount` (hardcoded 0)
+
+**Checkpoint**: Backend complete — `GET /api/events/{token}` returns 200 or 404. All backend tests pass.
+
+---
+
+## Phase 3: User Story 1 — View Event Details as Guest (Priority: P1) MVP
+
+**Goal**: A guest opens a shared event link and sees all event information: title, date/time with IANA timezone, description, location, attendee count. Loading shows skeleton shimmer.
+
+**Independent Test**: Navigate to a valid event URL, verify all fields display correctly with locale-formatted date/time.
+
+### Tests for User Story 1
+
+- [x] T013 [P] [US1] Unit tests for EventDetailView loaded state: renders title, date/time (locale-formatted via `Intl.DateTimeFormat`), timezone, description, location, attendee count — in `frontend/src/__tests__/EventDetailView.spec.ts`
+- [x] T014 [P] [US1] Unit test for EventDetailView loading state: renders skeleton shimmer placeholders — in `frontend/src/__tests__/EventDetailView.spec.ts`
+
+### Implementation for User Story 1
+
+- [x] T015 [P] [US1] Add skeleton shimmer CSS (CSS-only gradient animation, no dependencies) in `frontend/src/assets/main.css`
+- [x] T016 [US1] Create `EventDetailView.vue` with loading (skeleton shimmer) and loaded states — fetches event via `openapi-fetch` GET `/events/{token}`, formats date/time with `Intl.DateTimeFormat` using browser locale — in `frontend/src/views/EventDetailView.vue`
+- [x] T017 [US1] Update router to use `EventDetailView` for `/events/:token` route in `frontend/src/router/index.ts`
+- [x] T018 [P] [US1] Update `EventCreateView.vue` to send `timezone` field (auto-detected via `Intl.DateTimeFormat().resolvedOptions().timeZone`) in `frontend/src/views/EventCreateView.vue`
+- [x] T019 [US1] E2E test for loaded event: navigate to valid event URL, verify all fields displayed, verify no external resource requests — in `frontend/e2e/event-view.spec.ts`
+
+**Checkpoint**: US1 complete — guest can view event details. Skeleton shimmer during loading. Date/time locale-formatted with timezone label.
+
+---
+
+## Phase 4: User Story 2 — View Expired Event (Priority: P2)
+
+**Goal**: A guest opens a link to an expired event. The page shows event details plus a clear "event has ended" indicator. No RSVP actions shown.
+
+**Independent Test**: Create an event with past expiry date, navigate to its URL, verify "event has ended" state renders and no RSVP controls are present.
+
+**Dependencies**: Requires Phase 3 (EventDetailView exists).
+
+### Tests for User Story 2
+
+- [x] T020 [P] [US2] Unit test for EventDetailView expired state: renders "event has ended" indicator, RSVP controls absent from DOM — in `frontend/src/__tests__/EventDetailView.spec.ts`
+
+### Implementation for User Story 2
+
+- [x] T021 [US2] Add expired state rendering to `EventDetailView.vue`: show event details + "event has ended" banner when `expired === true`, no RSVP actions in DOM — in `frontend/src/views/EventDetailView.vue`
+- [x] T022 [US2] E2E test for expired event: MSW returns event with `expired: true`, verify banner and absent RSVP controls — in `frontend/e2e/event-view.spec.ts`
+
+**Checkpoint**: US2 complete — expired events clearly show "ended" state.
+
+---
+
+## Phase 5: User Story 4 — Event Not Found (Priority: P2)
+
+**Goal**: A guest navigates to an invalid event URL. The page shows a clear "event not found" message — no partial data, no error traces.
+
+**Independent Test**: Navigate to a URL with an unknown event token, verify "event not found" message renders.
+
+**Dependencies**: Requires Phase 3 (EventDetailView exists). No dependency on US2.
+
+### Tests for User Story 4
+
+- [x] T023 [P] [US4] Unit test for EventDetailView not-found state: renders "event not found" message, no event data in DOM — in `frontend/src/__tests__/EventDetailView.spec.ts`
+
+### Implementation for User Story 4
+
+- [x] T024 [US4] Add not-found state rendering to `EventDetailView.vue`: show "event not found" message when API returns 404 — in `frontend/src/views/EventDetailView.vue`
+- [x] T025 [US4] E2E test for event not found: MSW returns 404 ProblemDetail, verify message and no event data — in `frontend/e2e/event-view.spec.ts`
+
+**Checkpoint**: US4 complete — invalid tokens show friendly not-found message.
+
+---
+
+## Phase 6: Polish & Cross-Cutting Concerns
+
+**Purpose**: Server error edge case, final validation, and cleanup.
+
+- [x] T026 Add server error state with manual retry button to `EventDetailView.vue`: friendly error message + "Retry" button that re-fetches — in `frontend/src/views/EventDetailView.vue`
+- [x] T027 [P] Unit test for server error + retry state in `frontend/src/__tests__/EventDetailView.spec.ts`
+- [x] T028 [P] E2E test for server error: MSW returns 500, verify error message and retry button functionality — in `frontend/e2e/event-view.spec.ts`
+- [x] T029 Run quickstart.md validation: verify all key changes listed in quickstart.md are implemented
+
+---
+
+## Dependencies & Execution Order
+
+### Phase Dependencies
+
+- **Setup (Phase 1)**: No dependencies — start immediately
+- **Foundational (Phase 2)**: Depends on T001 (OpenAPI spec) and T002 (migration) from Setup
+- **US1 (Phase 3)**: Depends on Phase 2 completion (backend endpoint must exist)
+- **US2 (Phase 4)**: Depends on Phase 3 (EventDetailView exists) — can parallelize with US4
+- **US4 (Phase 5)**: Depends on Phase 3 (EventDetailView exists) — can parallelize with US2
+- **Polish (Phase 6)**: Depends on Phase 3 minimum; ideally after US2 + US4
+
+### User Story Dependencies
+
+```
+Phase 1 (Setup) ──► Phase 2 (Backend) ──► Phase 3 (US1/MVP)
+                                               │
+                                          ┌────┴────┐
+                                          ▼         ▼
+                                     Phase 4     Phase 5
+                                     (US2)       (US4)
+                                          └────┬────┘
+                                               ▼
+                                          Phase 6 (Polish)
+```
+
+- **US1 (P1)**: Requires Phase 2 — no dependency on other stories
+- **US2 (P2)**: Requires US1 (same component) — no dependency on US4
+- **US4 (P2)**: Requires US1 (same component) — no dependency on US2
+- **US3 (P2)**: DEFERRED until US-18 (cancel event) is implemented
+
+### Within Each Phase
+
+- Tests MUST be written and FAIL before implementation (TDD)
+- Models/ports before services
+- Services before controllers
+- Backend before frontend (for the same endpoint)
+
+### Parallel Opportunities
+
+**Phase 1**: T002 (migration) can run in parallel with T001 (OpenAPI update)
+**Phase 2**: T004, T005, T006 (tests) can run in parallel. T008, T009 can run in parallel after T007.
+**Phase 3**: T013, T014 (unit tests) and T015 (CSS) can run in parallel. T018 (create form timezone) is independent.
+**Phase 4 + 5**: US2 and US4 can be implemented in parallel (different UI states, same file but non-conflicting sections).
+
+---
+
+## Parallel Example: Phase 2 (Backend)
+
+```bash
+# Write all backend tests in parallel (TDD):
+Task T004: "Unit tests for GetEventUseCase"
+Task T005: "Controller tests for GET /events/{token}"
+Task T006: "Tests for timezone in Create Event flow"
+
+# Then implement in parallel where possible:
+Task T008: "Add timezone to JPA entity + persistence"  # parallel
+Task T009: "Update Create Event flow for timezone"      # parallel
+# T010-T012 are sequential (port → service → controller)
+```
+
+---
+
+## Implementation Strategy
+
+### MVP First (User Story 1 Only)
+
+1. Complete Phase 1: Setup (OpenAPI + migration + types)
+2. Complete Phase 2: Backend (domain + use case + controller + tests)
+3. Complete Phase 3: US1 (EventDetailView + router + tests)
+4. **STOP and VALIDATE**: Guest can view event details via shared link
+5. Deploy/demo if ready
+
+### Incremental Delivery
+
+1. Setup + Backend → Backend ready, API testable via curl
+2. Add US1 → Guest can view events (MVP!)
+3. Add US2 → Expired events show "ended" state
+4. Add US4 → Invalid tokens show "not found"
+5. Polish → Server error handling, final validation
+
+### Deferred Work
+
+- **US3 (Cancelled event)**: Blocked on US-18. No tasks generated. Will require adding `cancelled` + `cancellationMessage` to GetEventResponse and a new UI state.
+
+---
+
+## Notes
+
+- [P] tasks = different files, no dependencies on incomplete tasks
+- [Story] label maps task to specific user story for traceability
+- `attendeeCount` returns 0 until RSVP feature (US-8+) is implemented (R-3)
+- `expired` is computed server-side using injected Clock bean (R-4)
+- Frontend route: `/events/:token` — API path: `/api/events/{token}` (R-5)
+- Skeleton shimmer is CSS-only, no additional dependencies (R-6)
+- Date/time formatted via `Intl.DateTimeFormat` with browser locale (spec clarification Q7)