fix: temporarily disable routers to isolate Pydantic validation issue and add agent endpoints to working routers

- Comment out most routers in main.py to isolate Pydantic issue
- Keep only blockchain router enabled for testing
- Fix database warmup to use get_session() instead of SessionDep()
- Add blockchain router to __init__.py exports
- Add test endpoint to agent_router for verification
- Duplicate agent network and execution receipt endpoints in client and exchange routers as temporary workaround

scripts/quick_test.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python3
+"""
+Quick Performance Test
+"""
+
+import requests
+import time
+
+def test_endpoint(url, headers=None):
+    start = time.time()
+    try:
+        resp = requests.get(url, headers=headers, timeout=5)
+        end = time.time()
+        print(f"✅ {url}: {resp.status_code} in {end-start:.3f}s")
+        return True
+    except Exception as e:
+        end = time.time()
+        print(f"❌ {url}: Error in {end-start:.3f}s - {e}")
+        return False
+
+print("🧪 Quick Performance Test")
+print("=" * 30)
+
+# Test health endpoint
+test_endpoint("https://aitbc.bubuit.net/api/v1/health")
+
+# Test with API key
+headers = {"X-Api-Key": "test_key_16_characters"}
+test_endpoint("https://aitbc.bubuit.net/api/v1/client/jobs", headers)
+
+print("\n✅ Basic connectivity test complete")