Add Pathfinder 2e game system mode

Implements PF2e as an alternative game system alongside D&D 5e/5.5e.
Settings modal "Game System" selector switches conditions, bestiary,
stat block layout, and initiative calculation between systems.

- Valued conditions with increment/decrement UX (Clumsy 2, Frightened 3)
- 2,502 PF2e creatures from bundled search index (77 sources)
- PF2e stat block: level, traits, Perception, Fort/Ref/Will, ability mods
- Perception-based initiative rolling
- System-scoped source cache (D&D and PF2e sources don't collide)
- Backwards-compatible condition rehydration (ConditionId[] → ConditionEntry[])
- Difficulty indicator hidden in PF2e mode (excluded from MVP)

Closes dostulata/initiative#19

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

packages/domain/src/conditions.ts

@@ -1,21 +1,48 @@
 export type ConditionId =
 	| "blinded"
 	| "charmed"
+	| "clumsy"
+	| "concealed"
+	| "confused"
+	| "controlled"
+	| "dazzled"
 	| "deafened"
+	| "doomed"
+	| "drained"
+	| "dying"
+	| "enfeebled"
 	| "exhaustion"
+	| "fascinated"
+	| "fatigued"
+	| "fleeing"
 	| "frightened"
+	| "grabbed"
 	| "grappled"
+	| "hidden"
+	| "immobilized"
 	| "incapacitated"
 	| "invisible"
+	| "off-guard"
 	| "paralyzed"
 	| "petrified"
 	| "poisoned"
 	| "prone"
+	| "quickened"
 	| "restrained"
 	| "sapped"
+	| "sickened"
 	| "slowed"
+	| "slowed-pf2e"
 	| "stunned"
-	| "unconscious";
+	| "stupefied"
+	| "unconscious"
+	| "undetected"
+	| "wounded";
+
+export interface ConditionEntry {
+	readonly id: ConditionId;
+	readonly value?: number;
+}
 
 import type { RulesEdition } from "./rules-edition.js";
 
@@ -24,20 +51,24 @@ export interface ConditionDefinition {
 	readonly label: string;
 	readonly description: string;
 	readonly description5e: string;
+	readonly descriptionPf2e?: string;
 	readonly iconName: string;
 	readonly color: string;
-	/** When set, the condition only appears in this edition's picker. */
-	readonly edition?: RulesEdition;
+	/** When set, the condition only appears in these systems' pickers. */
+	readonly systems?: readonly RulesEdition[];
+	readonly valued?: boolean;
 }
 
 export function getConditionDescription(
 	def: ConditionDefinition,
 	edition: RulesEdition,
 ): string {
+	if (edition === "pf2e" && def.descriptionPf2e) return def.descriptionPf2e;
 	return edition === "5e" ? def.description5e : def.description;
 }
 
 export const CONDITION_DEFINITIONS: readonly ConditionDefinition[] = [
+	// ── Shared conditions (D&D + PF2e) ──
 	{
 		id: "blinded",
 		label: "Blinded",
@@ -45,6 +76,8 @@ export const CONDITION_DEFINITIONS: readonly ConditionDefinition[] = [
 			"Can't see. Auto-fail sight checks. Attacks have Disadvantage; attacks against have Advantage.",
 		description5e:
 			"Can't see. Auto-fail sight checks. Attacks have Disadvantage; attacks against have Advantage.",
+		descriptionPf2e:
+			"Can't see. All terrain is difficult terrain. –4 status penalty to Perception checks involving sight. Immune to visual effects. Auto-fail checks requiring sight. Off-guard.",
 		iconName: "EyeOff",
 		color: "neutral",
 	},
@@ -57,12 +90,15 @@ export const CONDITION_DEFINITIONS: readonly ConditionDefinition[] = [
 			"Can't attack or target the charmer with harmful abilities. Charmer has Advantage on social checks.",
 		iconName: "Heart",
 		color: "pink",
+		systems: ["5e", "5.5e"],
 	},
 	{
 		id: "deafened",
 		label: "Deafened",
 		description: "Can't hear. Auto-fail hearing checks.",
 		description5e: "Can't hear. Auto-fail hearing checks.",
+		descriptionPf2e:
+			"Can't hear. –2 status penalty to Perception checks and Initiative. Auto-fail hearing checks. Immune to auditory effects.",
 		iconName: "EarOff",
 		color: "neutral",
 	},
@@ -75,6 +111,7 @@ export const CONDITION_DEFINITIONS: readonly ConditionDefinition[] = [
 			"L1: Disadvantage on ability checks\nL2: Speed halved\nL3: Disadvantage on attacks and saves\nL4: HP max halved\nL5: Speed 0\nL6: Death\nLong rest removes 1 level.",
 		iconName: "BatteryLow",
 		color: "amber",
+		systems: ["5e", "5.5e"],
 	},
 	{
 		id: "frightened",
@@ -83,8 +120,11 @@ export const CONDITION_DEFINITIONS: readonly ConditionDefinition[] = [
 			"Disadvantage on ability checks and attacks while source of fear is in line of sight. Can't willingly move closer to the source.",
 		description5e:
 			"Disadvantage on ability checks and attacks while source of fear is in line of sight. Can't willingly move closer to the source.",
+		descriptionPf2e:
+			"–X status penalty to all checks and DCs (X = value). Can't willingly approach the source.",
 		iconName: "Siren",
 		color: "orange",
+		valued: true,
 	},
 	{
 		id: "grappled",
@@ -95,6 +135,7 @@ export const CONDITION_DEFINITIONS: readonly ConditionDefinition[] = [
 			"Speed 0. Ends if grappler is Incapacitated or moved out of reach.",
 		iconName: "Hand",
 		color: "neutral",
+		systems: ["5e", "5.5e"],
 	},
 	{
 		id: "incapacitated",
@@ -104,6 +145,7 @@ export const CONDITION_DEFINITIONS: readonly ConditionDefinition[] = [
 		description5e: "Can't take Actions or Reactions.",
 		iconName: "Ban",
 		color: "gray",
+		systems: ["5e", "5.5e"],
 	},
 	{
 		id: "invisible",
@@ -112,6 +154,8 @@ export const CONDITION_DEFINITIONS: readonly ConditionDefinition[] = [
 			"Can't be seen. Advantage on Initiative. Not affected by effects requiring sight (unless caster sees you). Attacks have Advantage; attacks against have Disadvantage.",
 		description5e:
 			"Impossible to see without magic or special sense. Heavily Obscured. Attacks have Advantage; attacks against have Disadvantage.",
+		descriptionPf2e:
+			"Can't be seen except by special senses. Undetected to everyone. Can't be targeted except by effects that don't require sight.",
 		iconName: "Ghost",
 		color: "violet",
 	},
@@ -122,6 +166,7 @@ export const CONDITION_DEFINITIONS: readonly ConditionDefinition[] = [
 			"Incapacitated. Can't move or speak. Auto-fail Str/Dex saves. Attacks against have Advantage. Hits within 5 ft. are critical.",
 		description5e:
 			"Incapacitated. Can't move or speak. Auto-fail Str/Dex saves. Attacks against have Advantage. Hits within 5 ft. are critical.",
+		descriptionPf2e: "Can't act. Off-guard. –4 status penalty to AC.",
 		iconName: "ZapOff",
 		color: "yellow",
 	},
@@ -132,6 +177,8 @@ export const CONDITION_DEFINITIONS: readonly ConditionDefinition[] = [
 			"Turned to stone. Weight \u00D710. Incapacitated. Can't move or speak. Attacks against have Advantage. Auto-fail Str/Dex saves. Resistant to all damage. Immune to poison and disease.",
 		description5e:
 			"Turned to stone. Weight \u00D710. Incapacitated. Can't move or speak. Attacks against have Advantage. Auto-fail Str/Dex saves. Resistant to all damage. Immune to poison and disease.",
+		descriptionPf2e:
+			"Can't act. Can't sense anything. AC = 9. Hardness 8. Immune to most effects.",
 		iconName: "Gem",
 		color: "slate",
 	},
@@ -142,6 +189,7 @@ export const CONDITION_DEFINITIONS: readonly ConditionDefinition[] = [
 		description5e: "Disadvantage on attack rolls and ability checks.",
 		iconName: "Droplet",
 		color: "green",
+		systems: ["5e", "5.5e"],
 	},
 	{
 		id: "prone",
@@ -150,6 +198,8 @@ export const CONDITION_DEFINITIONS: readonly ConditionDefinition[] = [
 			"Can only crawl (costs extra movement). Disadvantage on attacks. Attacks within 5 ft. have Advantage; ranged attacks have Disadvantage. Standing up costs half movement.",
 		description5e:
 			"Can only crawl (costs extra movement). Disadvantage on attacks. Attacks within 5 ft. have Advantage; ranged attacks have Disadvantage. Standing up costs half movement.",
+		descriptionPf2e:
+			"Off-guard. –2 circumstance penalty to attack rolls. Only movement is Crawl and Stand. +1 circumstance bonus to AC vs. ranged attacks, –2 vs. melee.",
 		iconName: "ArrowDown",
 		color: "neutral",
 	},
@@ -160,6 +210,8 @@ export const CONDITION_DEFINITIONS: readonly ConditionDefinition[] = [
 			"Speed is 0. Attacks have Disadvantage. Attacks against have Advantage. Disadvantage on Dex saves.",
 		description5e:
 			"Speed is 0. Attacks have Disadvantage. Attacks against have Advantage. Disadvantage on Dex saves.",
+		descriptionPf2e:
+			"Off-guard. Immobilized. Can't use any actions with the attack trait except to attempt to Escape.",
 		iconName: "Link",
 		color: "neutral",
 	},
@@ -171,7 +223,7 @@ export const CONDITION_DEFINITIONS: readonly ConditionDefinition[] = [
 		description5e: "",
 		iconName: "ShieldMinus",
 		color: "amber",
-		edition: "5.5e",
+		systems: ["5.5e"],
 	},
 	{
 		id: "slowed",
@@ -181,7 +233,7 @@ export const CONDITION_DEFINITIONS: readonly ConditionDefinition[] = [
 		description5e: "",
 		iconName: "Snail",
 		color: "sky",
-		edition: "5.5e",
+		systems: ["5.5e"],
 	},
 	{
 		id: "stunned",
@@ -190,8 +242,11 @@ export const CONDITION_DEFINITIONS: readonly ConditionDefinition[] = [
 			"Incapacitated (can't act or speak). Auto-fail Str/Dex saves. Attacks against have Advantage.",
 		description5e:
 			"Incapacitated. Can't move. Can speak only falteringly. Auto-fail Str/Dex saves. Attacks against have Advantage.",
+		descriptionPf2e:
+			"Can't act. –X value to actions per turn while the value counts down.",
 		iconName: "Sparkles",
 		color: "yellow",
+		valued: true,
 	},
 	{
 		id: "unconscious",
@@ -200,9 +255,261 @@ export const CONDITION_DEFINITIONS: readonly ConditionDefinition[] = [
 			"Incapacitated. Speed 0. Can't move or speak. Unaware of surroundings. Drops held items, falls Prone. Auto-fail Str/Dex saves. Attacks against have Advantage. Hits within 5 ft. are critical.",
 		description5e:
 			"Incapacitated. Speed 0. Can't move or speak. Unaware of surroundings. Drops held items, falls Prone. Auto-fail Str/Dex saves. Attacks against have Advantage. Hits within 5 ft. are critical.",
+		descriptionPf2e:
+			"Can't act. Off-guard. –4 status penalty to AC. –3 to Perception. Fall prone, drop items.",
 		iconName: "Moon",
 		color: "indigo",
 	},
+	// ── PF2e-only conditions ──
+	{
+		id: "clumsy",
+		label: "Clumsy",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"–X status penalty to Dex-based checks and DCs, including AC, Reflex saves, and ranged attack rolls.",
+		iconName: "Footprints",
+		color: "amber",
+		systems: ["pf2e"],
+		valued: true,
+	},
+	{
+		id: "concealed",
+		label: "Concealed",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"DC 5 flat check for targeted attacks. Doesn't change which creatures can see you.",
+		iconName: "CloudFog",
+		color: "slate",
+		systems: ["pf2e"],
+	},
+	{
+		id: "confused",
+		label: "Confused",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"Off-guard. Can't Delay, Ready, or use reactions. GM determines targets randomly. Flat check DC 11 to act normally each turn.",
+		iconName: "CircleHelp",
+		color: "pink",
+		systems: ["pf2e"],
+	},
+	{
+		id: "controlled",
+		label: "Controlled",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"Another creature determines your actions. You gain no actions of your own.",
+		iconName: "Drama",
+		color: "pink",
+		systems: ["pf2e"],
+	},
+	{
+		id: "dazzled",
+		label: "Dazzled",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"All creatures and objects are concealed to you. DC 5 flat check for targeted attacks requiring sight.",
+		iconName: "Sun",
+		color: "yellow",
+		systems: ["pf2e"],
+	},
+	{
+		id: "doomed",
+		label: "Doomed",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"Die at dying X (where X = 4 – doomed value instead of dying 4). Decreases by 1 on full night's rest.",
+		iconName: "Skull",
+		color: "red",
+		systems: ["pf2e"],
+		valued: true,
+	},
+	{
+		id: "drained",
+		label: "Drained",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"–X status penalty to Con-based checks and DCs. Lose X × Hit Die in max HP. Decreases by 1 on full night's rest.",
+		iconName: "Droplets",
+		color: "red",
+		systems: ["pf2e"],
+		valued: true,
+	},
+	{
+		id: "dying",
+		label: "Dying",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"Unconscious. Make recovery checks at start of turn. At dying 4 (or 4 – doomed), you die.",
+		iconName: "HeartPulse",
+		color: "red",
+		systems: ["pf2e"],
+		valued: true,
+	},
+	{
+		id: "enfeebled",
+		label: "Enfeebled",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"–X status penalty to Str-based rolls, including melee attack and damage rolls.",
+		iconName: "TrendingDown",
+		color: "amber",
+		systems: ["pf2e"],
+		valued: true,
+	},
+	{
+		id: "fascinated",
+		label: "Fascinated",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"–2 status penalty to all checks. Can't use hostile actions. Ends if hostile action is used against you.",
+		iconName: "Eye",
+		color: "violet",
+		systems: ["pf2e"],
+	},
+	{
+		id: "fatigued",
+		label: "Fatigued",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"–1 status penalty to AC and saves. Can't use exploration activities while traveling. Recover after a full night's rest.",
+		iconName: "BatteryLow",
+		color: "amber",
+		systems: ["pf2e"],
+	},
+	{
+		id: "fleeing",
+		label: "Fleeing",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"Must spend actions to move away from the source. Can't Delay or Ready.",
+		iconName: "PersonStanding",
+		color: "orange",
+		systems: ["pf2e"],
+	},
+	{
+		id: "grabbed",
+		label: "Grabbed",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"Immobilized. Off-guard. Can't use actions with the move trait unless to Break Grapple.",
+		iconName: "Hand",
+		color: "neutral",
+		systems: ["pf2e"],
+	},
+	{
+		id: "hidden",
+		label: "Hidden",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"Known location but can't be seen. DC 11 flat check to target. Can use Seek to find.",
+		iconName: "EyeOff",
+		color: "slate",
+		systems: ["pf2e"],
+	},
+	{
+		id: "immobilized",
+		label: "Immobilized",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"Can't use any action with the move trait to change position.",
+		iconName: "Anchor",
+		color: "neutral",
+		systems: ["pf2e"],
+	},
+	{
+		id: "off-guard",
+		label: "Off-Guard",
+		description: "",
+		description5e: "",
+		descriptionPf2e: "–2 circumstance penalty to AC. (Formerly flat-footed.)",
+		iconName: "ShieldOff",
+		color: "amber",
+		systems: ["pf2e"],
+	},
+	{
+		id: "quickened",
+		label: "Quickened",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"Gain 1 extra action at the start of your turn each round (limited uses specified by the effect).",
+		iconName: "Zap",
+		color: "green",
+		systems: ["pf2e"],
+	},
+	{
+		id: "sickened",
+		label: "Sickened",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"–X status penalty to all checks and DCs. Can't willingly ingest anything. Reduce by retching (Fortitude save).",
+		iconName: "Droplet",
+		color: "green",
+		systems: ["pf2e"],
+		valued: true,
+	},
+	{
+		id: "slowed-pf2e",
+		label: "Slowed",
+		description: "",
+		description5e: "",
+		descriptionPf2e: "Lose X actions at the start of your turn each round.",
+		iconName: "Snail",
+		color: "sky",
+		systems: ["pf2e"],
+		valued: true,
+	},
+	{
+		id: "stupefied",
+		label: "Stupefied",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"–X status penalty to Int/Wis/Cha-based checks and DCs, including spell attack rolls and spell DCs. DC 5 + X flat check to cast spells or lose the spell.",
+		iconName: "BrainCog",
+		color: "violet",
+		systems: ["pf2e"],
+		valued: true,
+	},
+	{
+		id: "undetected",
+		label: "Undetected",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"Location unknown. Must pick a square to target; DC 11 flat check. Attacker is off-guard against your attacks.",
+		iconName: "Ghost",
+		color: "violet",
+		systems: ["pf2e"],
+	},
+	{
+		id: "wounded",
+		label: "Wounded",
+		description: "",
+		description5e: "",
+		descriptionPf2e:
+			"Next time you gain dying, add wounded value to dying value. Wounded 1 when you recover from dying; increases if already wounded.",
+		iconName: "HeartCrack",
+		color: "red",
+		systems: ["pf2e"],
+		valued: true,
+	},
 ] as const;
 
 export const VALID_CONDITION_IDS: ReadonlySet<string> = new Set(
@@ -213,6 +520,6 @@ export function getConditionsForEdition(
 	edition: RulesEdition,
 ): readonly ConditionDefinition[] {
 	return CONDITION_DEFINITIONS.filter(
-		(d) => d.edition === undefined || d.edition === edition,
+		(d) => d.systems === undefined || d.systems.includes(edition),
 	);
 }