fix: add debug logging to admin API key validation and re-enable all routers

- Add debug print statements to _validate_api_key and require_admin_key for troubleshooting
- Add /admin/debug-settings and /admin/test-key endpoints for API key validation testing
- Bypass require_admin_key dependency in /admin/stats endpoint for direct validation
- Fix database warmup to properly handle session generator lifecycle
- Re-enable all previously disabled routers in main.py
- Add custom OpenAPI security scheme

cli/aitbc_cli/commands/client.py

@@ -48,7 +48,7 @@ def submit(ctx, job_type: str, prompt: Optional[str], model: Optional[str],
         try:
             with httpx.Client() as client:
                 response = client.post(
-                    f"{config.coordinator_url}/api/v1/jobs",
+                    f"{config.coordinator_url}/v1/jobs",
                     headers={
                         "Content-Type": "application/json",
                         "X-Api-Key": config.api_key or ""
@@ -273,7 +273,7 @@ def history(ctx, limit: int, status: Optional[str], type: Optional[str],
             
         with httpx.Client() as client:
             response = client.get(
-                f"{config.coordinator_url}/api/v1/jobs",
+                f"{config.coordinator_url}/v1/jobs",
                 params=params,
                 headers={"X-Api-Key": config.api_key or ""}
             )