feat(settings): add MCP tools introspection endpoint

web/app.py

@@ -2806,6 +2806,18 @@ async def api_mcp_env_redeploy():
     }
 
 
+@app.get("/api/settings/mcp/tools")
+async def api_mcp_tools():
+    """List all MCP tools registered in legal_mcp."""
+    from web.mcp_introspection import list_mcp_tools
+    try:
+        tools = await list_mcp_tools()
+    except Exception as e:
+        logger.exception("mcp_tools_introspection_failed")
+        raise HTTPException(500, f"Tools introspection failed: {e}")
+    return {"tools": tools, "count": len(tools)}
+
+
 # ── Settings: Tag → Company Mappings ──────────────────────────────
 
 @app.get("/api/settings/paperclip-companies")