feat: bearer auth, auto-sync events, test seed

- Add bearer plugin to BetterAuth for mobile auth
- Auto-sync birthday/anniversary events on client create/update
- Add /api/events/sync-all endpoint for bulk sync
- Add test user seed (test@test.com / test)
- Expose set-auth-token header in CORS

src/db/seed.ts

@@ -0,0 +1,59 @@
+import { db } from './index';
+import { users, accounts } from './schema';
+import { eq } from 'drizzle-orm';
+
+// Hash password using the same method as BetterAuth (bcrypt via Bun)
+async function hashPassword(password: string): Promise<string> {
+  return await Bun.password.hash(password, {
+    algorithm: 'bcrypt',
+    cost: 10,
+  });
+}
+
+async function seed() {
+  const testEmail = 'test@test.com';
+  
+  // Check if test user already exists
+  const [existing] = await db.select()
+    .from(users)
+    .where(eq(users.email, testEmail))
+    .limit(1);
+  
+  if (existing) {
+    console.log('✓ Test user already exists');
+    return;
+  }
+  
+  // Create test user
+  const userId = crypto.randomUUID();
+  const hashedPassword = await hashPassword('test');
+  
+  await db.insert(users).values({
+    id: userId,
+    email: testEmail,
+    name: 'Test User',
+    emailVerified: true,
+    createdAt: new Date(),
+    updatedAt: new Date(),
+  });
+  
+  // Create credential account (for email/password login)
+  await db.insert(accounts).values({
+    id: crypto.randomUUID(),
+    userId: userId,
+    accountId: userId,
+    providerId: 'credential',
+    password: hashedPassword,
+    createdAt: new Date(),
+    updatedAt: new Date(),
+  });
+  
+  console.log('✓ Created test user: test@test.com / test');
+}
+
+seed()
+  .then(() => process.exit(0))
+  .catch((err) => {
+    console.error('Seed failed:', err);
+    process.exit(1);
+  });