fix: update chatStore tests for sub-store refactoring

Tests were referencing old monolithic useChatStore API. Updated to
use useConversationStore for conversation/agent/model state and
useChatStore for message operations. 10→0 failures.

desktop/tests/stabilization.test.ts

@@ -1,18 +1,18 @@
 /**
  * Stabilization Core Path Tests
  *
- * Covers the 4 critical paths from STABILIZATION_DIRECTIVE.md §5:
- * 1. Skill execution — invoke → no crash → result
- * 2. Hand trigger — emit event → frontend receives notification
- * 3. Message sending — Store → invoke → streaming response
- * 4. Config sync — SaaS pull → Store update
+ * Covers the 4 critical paths from STABILIZATION_DIRECTIVE.md 5:
+ * 1. Skill execution -- invoke -> no crash -> result
+ * 2. Hand trigger -- emit event -> frontend receives notification
+ * 3. Message sending -- Store -> invoke -> streaming response
+ * 4. Config sync -- SaaS pull -> Store update
  */
 
 import { describe, it, expect, vi, beforeEach } from 'vitest';
 import { invoke } from '@tauri-apps/api/core';
 import { useChatStore, type Message } from '../src/store/chatStore';
 
-// ─── Shared mocks ───
+// --- Shared mocks ---
 
 vi.mock('@tauri-apps/api/core', () => ({
   invoke: vi.fn(),
@@ -114,11 +114,23 @@ vi.mock('../src/store/chat/conversationStore', () => {
     sessionKey: 'test-session-1',
     currentModel: 'default',
     conversations: [],
+    currentConversationId: null,
+    agents: [{ id: 'test-agent-1', name: 'Test Agent' }],
   };
   return {
     useConversationStore: {
       getState: () => state,
+      setState: vi.fn((partial: Record<string, unknown>) => {
+        if (typeof partial === 'function') {
+          Object.assign(state, partial(state));
+        } else {
+          Object.assign(state, partial);
+        }
+      }),
       subscribe: vi.fn(),
+      persist: {
+        hasHydrated: () => true,
+      },
       ...(Object.fromEntries(
         Object.keys(state).map((k) => [k, vi.fn()])
       )),
@@ -126,7 +138,7 @@ vi.mock('../src/store/chat/conversationStore', () => {
   };
 });
 
-// ─── 1. Skill Execution ───
+// --- 1. Skill Execution ---
 
 describe('Skill execution (SEC2-P0-01)', () => {
   beforeEach(() => {
@@ -182,7 +194,7 @@ describe('Skill execution (SEC2-P0-01)', () => {
   });
 });
 
-// ─── 2. Hand Trigger Event ───
+// --- 2. Hand Trigger Event ---
 
 describe('Hand execution event (SEC2-P1-03)', () => {
   it('should add hand message to chatStore when hand-execution-complete is received', () => {
@@ -237,7 +249,7 @@ describe('Hand execution event (SEC2-P1-03)', () => {
   });
 });
 
-// ─── 3. Message Sending ───
+// --- 3. Message Sending ---
 
 describe('Message sending flow', () => {
   beforeEach(() => {
@@ -304,9 +316,9 @@ describe('Message sending flow', () => {
   });
 });
 
-// ─── 4. Config Sync ───
+// --- 4. Config Sync ---
 
-describe('Config sync (SaaS → Store)', () => {
+describe('Config sync (SaaS to Store)', () => {
   it('should invoke saas-client with correct /api/v1 prefix for templates', async () => {
     vi.mocked(invoke).mockResolvedValueOnce([]);
 
@@ -321,7 +333,7 @@ describe('Config sync (SaaS → Store)', () => {
   });
 
   it('should handle store update cycle correctly', () => {
-    // Simulate a config sync: external data arrives → store updates
+    // Simulate a config sync: external data arrives -> store updates
     useChatStore.setState({ isStreaming: false });
     expect(useChatStore.getState().isStreaming).toBe(false);