Agent completed work jubii

src/server/db.ts

@@ -0,0 +1,9 @@
+/**
+ * Database — TODO(M4).
+ *
+ * bun:sqlite (Decisions.md D-009). Tables: users (id, username, password_hash
+ * via Bun.password Argon2), sessions (id, user_id, expires_at). DB path from
+ * env, default ./data/app.db.
+ */
+
+export {};