AI Implementation feature(899): Data and run (#39)

tests/backend/env-schema.spec.ts

@@ -6,6 +6,18 @@ describe('envSchema', () => {
     expect(r.success).toBe(true);
   });
 
+  it('defaults DATABASE_PATH to ./data/db.sqlite', () => {
+    const r = envSchema.safeParse({});
+    expect(r.success).toBe(true);
+    expect((r.data as any).DATABASE_PATH).toBe('./data/db.sqlite');
+  });
+
+  it('defaults UPLOAD_DIR to ./data/uploads', () => {
+    const r = envSchema.safeParse({});
+    expect(r.success).toBe(true);
+    expect((r.data as any).UPLOAD_DIR).toBe('./data/uploads');
+  });
+
   it('rejects invalid PORT', () => {
     const r = envSchema.safeParse({ PORT: 'not-a-number' });
     expect(r.success).toBe(false);