Add player character management feature

Persistent player character templates (name, AC, HP, color, icon) with
full CRUD, bestiary-style search to add PCs to encounters with pre-filled
stats, and color/icon visual distinction in combatant rows. Also stops
the stat block panel from auto-opening when adding a creature.

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

apps/web/src/persistence/encounter-storage.ts

@@ -5,7 +5,10 @@ import {
 	creatureId,
 	type Encounter,
 	isDomainError,
+	playerCharacterId,
 	VALID_CONDITION_IDS,
+	VALID_PLAYER_COLORS,
+	VALID_PLAYER_ICONS,
 } from "@initiative/domain";
 
 const STORAGE_KEY = "initiative:encounter";
@@ -70,12 +73,29 @@ function rehydrateCombatant(c: unknown) {
 			typeof entry.initiative === "number" ? entry.initiative : undefined,
 	};
 
+	const color =
+		typeof entry.color === "string" && VALID_PLAYER_COLORS.has(entry.color)
+			? entry.color
+			: undefined;
+	const icon =
+		typeof entry.icon === "string" && VALID_PLAYER_ICONS.has(entry.icon)
+			? entry.icon
+			: undefined;
+	const pcId =
+		typeof entry.playerCharacterId === "string" &&
+		entry.playerCharacterId.length > 0
+			? playerCharacterId(entry.playerCharacterId)
+			: undefined;
+
 	const shared = {
 		...base,
 		ac: validateAc(entry.ac),
 		conditions: validateConditions(entry.conditions),
 		isConcentrating: entry.isConcentrating === true ? true : undefined,
 		creatureId: validateCreatureId(entry.creatureId),
+		color,
+		icon,
+		playerCharacterId: pcId,
 	};
 
 	const hp = validateHp(entry.maxHp, entry.currentHp);