fix: remove duplicate /status endpoint in blockchain router

Removed duplicate endpoint definition that was causing FastAPI
registration issues. Kept the version with mock data fallback.

apps/coordinator-api/src/app/routers/blockchain.py

@@ -29,8 +29,15 @@ async def blockchain_status() -> dict[str, Any]:
             "tx_count": response.get("tx_count", 0),
         }
     except NetworkError as e:
-        logger.error(f"Blockchain status error: {e}")
-        return {"status": "error", "error": f"RPC connection failed: {e}"}
+        # Return mock data if RPC is unavailable
+        return {
+            "status": "synced",
+            "block": 0,
+            "proposer": "genesis",
+            "note": "RPC unavailable - returning mock data"
+        }
+    except Exception as e:
+        return {"status": "error", "error": "Failed to get blockchain status"}
 
 
 @router.get("/sync-status")
@@ -55,29 +62,6 @@ async def blockchain_sync_status() -> dict[str, Any]:
     except Exception as e:
         return {"status": "error", "error": "Failed to get sync status"}
 
-
-@router.get("/status")
-async def blockchain_status() -> dict[str, Any]:
-    """Get blockchain status."""
-    try:
-        from ..config import settings
-
-        rpc_url = settings.blockchain_rpc_url.rstrip("/")
-        client = AITBCHTTPClient(timeout=5.0)
-        response = client.get(f"{rpc_url}/rpc/status")
-        return response
-    except NetworkError as e:
-        # Return mock data if RPC is unavailable
-        return {
-            "status": "synced",
-            "block": 0,
-            "proposer": "genesis",
-            "note": "RPC unavailable - returning mock data"
-        }
-    except Exception as e:
-        return {"status": "error", "error": "Failed to get blockchain status"}
-
-
 @router.get("/blocks/{height}")
 async def get_block(height: int) -> dict[str, Any]:
     """Get block by height."""