Initial commit: Brachnha Insight project setup

- Next.js 14+ with App Router and TypeScript
- Tailwind CSS and ShadCN UI styling
- Zustand state management
- Dexie.js for IndexedDB (local-first data)
- Auth.js v5 for authentication
- BMAD framework integration

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

tests/integration/ghostwriter-persistence.test.ts

@@ -0,0 +1,27 @@
+import { test, expect } from '@playwright/test';
+
+test.describe('Ghostwriter Persistence', () => {
+    test('Scenario 2.4.2 (P0): Session Saved as Completed', async ({ request }) => {
+        // GIVEN: A chat session flow is completed
+        // This is an API/Integration test, so we hit the endpoint directly if possible, 
+        // OR we use the service capability if we were in a unit test. 
+        // For Playwright Integration (API), we assume an endpoint exists to finalize.
+
+        // Setup: Create a session
+        const createRes = await request.post('/api/sessions', { data: { title: 'Test Session' } });
+        const { sessionId } = await createRes.json();
+
+        // WHEN: User saves the final draft
+        const saveRes = await request.post(`/api/sessions/${sessionId}/finalize`, {
+            data: { finalContent: 'My Lesson' }
+        });
+        expect(saveRes.status()).toBe(200);
+
+        // THEN: Session status is COMPLETED
+        const getRes = await request.get(`/api/sessions/${sessionId}`);
+        const session = await getRes.json();
+
+        expect(session.status).toBe('COMPLETED');
+        expect(session.finalArtifact).toBe('My Lesson');
+    });
+});