fix: OpenEnv multi-mode compliance — add main() entrypoint and uv.lock

pyproject.toml

@@ -16,7 +16,11 @@ dependencies = [
     "uvicorn[standard]>=0.23.0",
     "pydantic>=2.0.0",
     "openai>=1.0.0",
+    "openenv-core>=0.2.0",
 ]
 
+[project.scripts]
+server = "server.app:main"
+
 [tool.setuptools.packages.find]
 include = ["server*", "tasks*"]

server/app.py

@@ -172,3 +172,14 @@ def api_state():
             "status": "error",
             "message": "fallback response",
         }
+
+
+# ── CLI entrypoint (OpenEnv / script console_scripts) ─────────────────────
+def main():
+    """Run the CodeArena server via uvicorn."""
+    import uvicorn
+    uvicorn.run("server.app:app", host="0.0.0.0", port=7860)
+
+
+if __name__ == "__main__":
+    main()