fix(tests): skip mcp server tests when mcp unavailable/incompatible

test_mcp_server.py imported fpb_mcp_server unconditionally, which hard-
exits (sys.exit(1)) at import time when the optional mcp package is
missing or its API is incompatible. mcp 2.0 removed the
mcp.server.fastmcp import path, so a fresh CI install (unpinned 'pip
install mcp' -> 2.0) crashed all 49 tests with SystemExit.

Probe fpb_mcp_server importability once and apply a module-level
pytest.mark.skipif, catching both ImportError (missing) and SystemExit
(the module's own import guard). mcp 1.x still runs the full suite;
mcp 2.0/missing now skips gracefully instead of failing.

Change-Id: Icb488fc29307e610f60b5d84b48a07cfe72220fb

Author: FASTSHIFT

Tools/WebServer/tests/test_mcp_server.py

@@ -6,9 +6,32 @@
 import unittest
 from unittest.mock import patch, MagicMock, PropertyMock
 
+import pytest
+
 # Add parent directory to path
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
+# The MCP server module hard-exits (sys.exit(1)) at import time when the
+# optional `mcp` package is missing or its API is incompatible (e.g. the
+# `mcp.server.fastmcp` import path was removed in mcp 2.0). Probe
+# importability once and skip the whole module gracefully instead of letting
+# every test crash with SystemExit. This keeps CI green across mcp version
+# drift. Both ImportError (missing package) and SystemExit (the module's own
+# import guard) are treated as "mcp unavailable".
+try:
+    import fpb_mcp_server as _fpb_mcp_server  # noqa: F401
+
+    _MCP_AVAILABLE = True
+    _MCP_SKIP_REASON = ""
+except (ImportError, SystemExit) as exc:
+    _MCP_AVAILABLE = False
+    _MCP_SKIP_REASON = (
+        f"fpb_mcp_server unavailable (mcp not installed/incompatible): {exc!r}"
+    )
+
+# Module-level skip: pytest applies this to every test in the file.
+pytestmark = pytest.mark.skipif(not _MCP_AVAILABLE, reason=_MCP_SKIP_REASON)
+
 
 class TestCaptureCliOutput(unittest.TestCase):
     """Test _capture_cli_output helper"""