feat(api): mount better-auth (email+password + bearer) on /api/auth

apps/api/src/app.ts

@@ -1,8 +1,10 @@
 import { Hono } from 'hono';
 import { health } from './routes/health';
+import { auth } from './auth';
 
 export function createApp(): Hono {
   const app = new Hono();
   app.route('/', health);
+  app.on(['POST', 'GET'], '/api/auth/*', (c) => auth.handler(c.req.raw));
   return app;
 }

apps/api/src/auth.ts

@@ -0,0 +1,18 @@
+import { betterAuth } from 'better-auth';
+import { drizzleAdapter } from 'better-auth/adapters/drizzle';
+import { bearer } from 'better-auth/plugins';
+import { db } from './db/client';
+import * as schema from './db/schema';
+import { env } from './env';
+
+export const auth = betterAuth({
+  secret: env.BETTER_AUTH_SECRET,
+  baseURL: env.BETTER_AUTH_URL,
+  trustedOrigins: [env.BETTER_AUTH_URL, 'http://localhost:3000'],
+  database: drizzleAdapter(db, { provider: 'sqlite', schema }),
+  emailAndPassword: {
+    enabled: true,
+    requireEmailVerification: false,
+  },
+  plugins: [bearer()],
+});