Remove demo combatants and allow empty encounters

Empty encounters are now valid (INV-1 updated). New sessions start
with zero combatants instead of pre-populated Aria/Brak/Cael.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.dockerignore

@@ -0,0 +1,9 @@
+node_modules
+.pnpm-store
+dist
+coverage
+.git
+.claude
+.specify
+specs
+docs

.gitea/workflows/ci.yml

@@ -0,0 +1,49 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+    tags: ["*"]
+  pull_request:
+    branches: [main]
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: pnpm/action-setup@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+
+      - run: pnpm install --frozen-lockfile
+      - run: pnpm check
+
+  build-image:
+    if: startsWith(github.ref, 'refs/tags/')
+    needs: check
+    runs-on: host
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Log in to Gitea registry
+        run: echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login git.bahamut.nitrix.one -u "${{ secrets.REGISTRY_USERNAME }}" --password-stdin
+
+      - name: Build and push
+        run: |
+          IMAGE=git.bahamut.nitrix.one/dostulata/initiative
+          TAG=${GITHUB_REF#refs/tags/}
+          docker build -t $IMAGE:$TAG -t $IMAGE:latest .
+          docker push $IMAGE:$TAG
+          docker push $IMAGE:latest
+
+      - name: Deploy
+        run: |
+          IMAGE=git.bahamut.nitrix.one/dostulata/initiative
+          TAG=${GITHUB_REF#refs/tags/}
+          docker stop initiative || true
+          docker rm initiative || true
+          docker run -d --name initiative --restart unless-stopped -p 8080:80 $IMAGE:$TAG

Dockerfile

@@ -0,0 +1,19 @@
+FROM node:22-slim AS build
+ENV PNPM_HOME="/pnpm"
+ENV PATH="$PNPM_HOME:$PATH"
+RUN corepack enable
+
+WORKDIR /app
+COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
+COPY packages/domain/package.json packages/domain/
+COPY packages/application/package.json packages/application/
+COPY apps/web/package.json apps/web/
+RUN pnpm install --frozen-lockfile --ignore-scripts
+
+COPY . .
+RUN pnpm --filter web build
+
+FROM nginx:alpine
+COPY --from=build /app/apps/web/dist /usr/share/nginx/html
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+EXPOSE 80

apps/web/src/components/action-bar.tsx

@@ -226,7 +226,7 @@ export function ActionBar({
 						value={nameInput}
 						onChange={(e) => handleNameChange(e.target.value)}
 						onKeyDown={handleKeyDown}
-						placeholder="Search creatures to add..."
+						placeholder="+ Add combatants"
 						className="max-w-xs"
 					/>
 					{suggestions.length > 0 && (

apps/web/src/hooks/use-encounter.ts

@@ -22,7 +22,6 @@ import type {
 } from "@initiative/domain";
 import {
 	combatantId,
-	createEncounter,
 	isDomainError,
 	creatureId as makeCreatureId,
 	resolveCreatureName,
@@ -33,24 +32,16 @@ import {
 	saveEncounter,
 } from "../persistence/encounter-storage.js";
 
-function createDemoEncounter(): Encounter {
-	const result = createEncounter([
-		{ id: combatantId("1"), name: "Aria" },
-		{ id: combatantId("2"), name: "Brak" },
-		{ id: combatantId("3"), name: "Cael" },
-	]);
-
-	if (isDomainError(result)) {
-		throw new Error(`Failed to create demo encounter: ${result.message}`);
-	}
-
-	return result;
-}
+const EMPTY_ENCOUNTER: Encounter = {
+	combatants: [],
+	activeIndex: 0,
+	roundNumber: 1,
+};
 
 function initializeEncounter(): Encounter {
 	const stored = loadEncounter();
 	if (stored !== null) return stored;
-	return createDemoEncounter();
+	return EMPTY_ENCOUNTER;
 }
 
 function deriveNextId(encounter: Encounter): number {

biome.json

@@ -7,7 +7,8 @@
 			"!.claude/**",
 			"!.specify/**",
 			"!specs/**",
-			"!coverage/**"
+			"!coverage/**",
+			"!.pnpm-store/**"
 		]
 	},
 	"assist": {

nginx.conf

@@ -0,0 +1,9 @@
+server {
+    listen 80;
+    root /usr/share/nginx/html;
+    index index.html;
+
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+}

packages/domain/src/__tests__/advance-turn.test.ts

@@ -169,9 +169,9 @@ describe("advanceTurn", () => {
 	});
 
 	describe("invariants", () => {
-		it("INV-1: createEncounter rejects empty combatant list", () => {
+		it("INV-1: createEncounter accepts empty combatant list", () => {
 			const result = createEncounter([]);
-			expect(isDomainError(result)).toBe(true);
+			expect(isDomainError(result)).toBe(false);
 		});
 
 		it("INV-2: activeIndex always in bounds across all scenarios", () => {

packages/domain/src/types.ts

@@ -38,8 +38,8 @@ function domainError(code: string, message: string): DomainError {
 
 /**
  * Creates a valid Encounter, enforcing INV-1, INV-2, INV-3.
- * - INV-1: At least one combatant required.
- * - INV-2: activeIndex defaults to 0 (always in bounds).
+ * - INV-1: An encounter MAY have zero combatants.
+ * - INV-2: activeIndex defaults to 0 (always in bounds when combatants exist).
  * - INV-3: roundNumber defaults to 1 (positive integer).
  */
 export function createEncounter(
@@ -47,13 +47,10 @@ export function createEncounter(
 	activeIndex = 0,
 	roundNumber = 1,
 ): Encounter | DomainError {
-	if (combatants.length === 0) {
-		return domainError(
-			"invalid-encounter",
-			"An encounter must have at least one combatant",
-		);
-	}
-	if (activeIndex < 0 || activeIndex >= combatants.length) {
+	if (
+		combatants.length > 0 &&
+		(activeIndex < 0 || activeIndex >= combatants.length)
+	) {
 		return domainError(
 			"invalid-encounter",
 			`activeIndex ${activeIndex} out of bounds for ${combatants.length} combatants`,