feat: add direct PostgreSQL and ACK deployment support

tests/task-management.test.ts

@@ -20,8 +20,7 @@ let runtimeDir = "";
 const previousEnv = new Map<string, string | undefined>();
 const envNames = [
   "ZHINIAN_RUNTIME_DIR",
-  "NEXT_PUBLIC_SUPABASE_URL",
-  "SUPABASE_SERVICE_ROLE_KEY",
+  "ZHINIAN_DATA_BACKEND",
   "ZHINIAN_API_KEYS",
   "JIMENG_VISUAL_MOCK",
   "IMAGE_GENERATE_ENGINE",
@@ -42,13 +41,12 @@ describe("task management and public API helpers", () => {
     runtimeDir = await mkdtemp(join(tmpdir(), "zhinian-tasks-"));
     for (const name of envNames) previousEnv.set(name, process.env[name]);
     process.env.ZHINIAN_RUNTIME_DIR = runtimeDir;
+    process.env.ZHINIAN_DATA_BACKEND = "local";
     process.env.ZHINIAN_API_KEYS = "agent-a:secret-a,agent-b:secret-b";
     process.env.JIMENG_VISUAL_MOCK = "true";
     delete process.env.IMAGE_GENERATE_ENGINE;
     delete process.env.EVOLINK_MOCK;
     delete process.env.EVOLINK_API_KEY;
-    delete process.env.NEXT_PUBLIC_SUPABASE_URL;
-    delete process.env.SUPABASE_SERVICE_ROLE_KEY;
     delete process.env.VOLCENGINE_ACCESS_KEY_ID;
     delete process.env.VOLCENGINE_SECRET_ACCESS_KEY;
     delete process.env.ALI_OSS_ENDPOINT;