fix: prevent duplicate persona entries (race condition in hydrate), remove accidental 54MB file

src/store/usePersonaStore.ts

@@ -124,15 +124,25 @@ export const personaStore = createStore<PersonaStore>((set, get) => ({
   },
 
   hydrate: () => {
-    const stored = loadFromStorage();
-    if (stored && stored.length > 0) {
+    // Guard: only hydrate once — prevents race condition duplicates when
+    // called from multiple components at the same time.
+    if (get().isHydrated) return;
+    set({ isHydrated: true });
+
+    const raw = loadFromStorage();
+    // Deduplicate stored personas (keep last occurrence of each id)
+    const deduped = raw
+      ? [...new Map(raw.map((p) => [p.id, p])).values()]
+      : null;
+
+    if (deduped && deduped.length > 0) {
       // Only re-inject truly built-in personas (those still in DEFAULT_PERSONAS) if missing.
       // Dynamic/uploaded personas that were deleted via the dashboard must NOT be re-added.
-      const storedIds = new Set(stored.map((s) => s.id));
+      const storedIds = new Set(deduped.map((s) => s.id));
       const missing = DEFAULT_PERSONAS.filter((d) => !storedIds.has(d.id));
-      set({ personas: [...stored, ...missing], isHydrated: true });
+      set({ personas: [...deduped, ...missing] });
     } else {
-      set({ personas: [...DEFAULT_PERSONAS], isHydrated: true });
+      set({ personas: [...DEFAULT_PERSONAS] });
     }
 
     // Fetch pricing items from server DB and auto-register personas for all attire items
@@ -173,7 +183,10 @@ export const personaStore = createStore<PersonaStore>((set, get) => ({
 
           if (newPersonas.length > 0) {
             set((state) => {
-              const updated = [...state.personas, ...newPersonas];
+              // Deduplicate: merge by id, new personas take precedence for modelPath
+              const merged = new Map(state.personas.map((p) => [p.id, p]));
+              newPersonas.forEach((p) => { if (!merged.has(p.id)) merged.set(p.id, p); });
+              const updated = [...merged.values()];
               saveToStorage(updated);
               return { personas: updated };
             });