debug: add entry-point diagnostics to _install_log_filters_if_available

The server-package-side diagnostics (log_filters.py, commit 7423224)
confirmed install_sdk_log_filters() itself never logs anything -- but that
leaves open whether _install_log_filters_if_available() is even being
entered, or is silently returning via its "older ha-mcp" ModuleNotFoundError
branch despite a full custom_components/ha_mcp_tools/ directory replacement
(ruling out the single-file cross-module ModuleNotFoundError seen earlier).

Add an unconditional entry log using embedded_server's own _LOGGER (already
proven visible throughout this deployment across many other log lines),
and stop silencing the "older ha-mcp" ModuleNotFoundError branch so its
exact err.name/message is visible too, rather than assuming which case it
hit.

Marked TEMPORARY; remove alongside the other temporary diagnostics once the
live mismatch is diagnosed.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Author: swissmo

custom_components/ha_mcp_tools/embedded_server.py

@@ -261,23 +261,30 @@ def _install_log_filters_if_available() -> None:
     nothing: log cosmetics must never block startup, but they also must
     never fail invisibly.
     """
+    # TEMPORARY DIAGNOSTIC (2026-08-25, remove once the live install/
+    # classification mismatch reported against this branch is found): proves
+    # this function is actually entered, using embedded_server's OWN logger
+    # (already proven visible throughout this deployment) rather than the
+    # new module's, in case that one is somehow not surfacing.
+    _LOGGER.warning("_install_log_filters_if_available: entered")
     try:
         from ha_mcp.log_filters import install_sdk_log_filters
     except ModuleNotFoundError as err:
-        if err.name != "ha_mcp.log_filters":
-            _LOGGER.warning(
-                "Could not install MCP SDK log-noise filters (missing "
-                "dependency %s); continuing without them: %s",
-                err.name,
-                err,
-            )
+        # TEMPORARY: always log now, including the previously-silent
+        # "older ha-mcp" case, to see exactly what's missing.
+        _LOGGER.warning(
+            "_install_log_filters_if_available: ModuleNotFoundError name=%r msg=%s",
+            err.name,
+            err,
+        )
         return
     except ImportError as err:
         _LOGGER.warning(
             "Could not install MCP SDK log-noise filters; continuing without them: %s",
             err,
         )
         return
+    _LOGGER.warning("_install_log_filters_if_available: import succeeded, installing")
     try:
         install_sdk_log_filters()
     except Exception as err: