Fix missing httpx dependency for MCP proxy

pyproject.toml

@@ -10,6 +10,7 @@ readme = "README.md"
 requires-python = ">=3.12"
 dependencies = [
   "databricks-sql-connector>=3.6.0",
+  "httpx>=0.27.1",
   # `ucode mcp-proxy` bridges a client's stdio MCP transport to a Databricks
   # streamable-HTTP MCP endpoint, injecting a freshly-minted OAuth bearer per
   # request. Uses the official MCP SDK's stdio server + streamable-HTTP client.

tests/test_mcp_proxy.py

@@ -2,6 +2,9 @@
 
 from __future__ import annotations
 
+import tomllib
+from pathlib import Path
+
 import anyio
 import httpx
 import pytest
@@ -12,6 +15,13 @@
 URL = f"{WS}/api/2.0/mcp/functions/system/ai"
 
 
+def test_httpx_is_a_direct_runtime_dependency():
+    project = tomllib.loads((Path(__file__).parent.parent / "pyproject.toml").read_text())[
+        "project"
+    ]
+    assert any(dependency.startswith("httpx") for dependency in project["dependencies"])
+
+
 class TestDatabricksTokenAuth:
     def test_injects_bearer_from_minted_token(self, monkeypatch):
         monkeypatch.setattr(mcp_proxy, "get_databricks_token", lambda ws, profile: "tok-123")