fix: add debug endpoint

src/app/api/debug/route.ts

@@ -0,0 +1,30 @@
+import { NextResponse } from "next/server";
+
+export async function GET() {
+  const results: Record<string, string> = {};
+
+  try {
+    // Test without using DATABASE_URL directly
+    const { default: postgres } = await import("postgres");
+
+    const connectionString = process.env.DATABASE_URL || "";
+    results["env_exists"] = connectionString ? "yes" : "no";
+    results["env_value"] = connectionString;
+
+    // Try connection
+    if (connectionString) {
+      const client = postgres(connectionString);
+      await client.connect();
+      results["connect"] = "success";
+
+      const result = await client`SELECT version()`;
+      results["version"] = result[0]?.version?.slice(0, 50) || "ok";
+
+      await client.end();
+    }
+  } catch (err: any) {
+    results["error"] = err.message || String(err);
+  }
+
+  return NextResponse.json(results);
+}