feat: add 5 notification mutations + comprehensive refactors from PR review

New notification actions (archive_many, create_unique, unarchive_many,
unarchive_all, recalculate) bring unraid_notifications to 14 actions.

Also includes continuation of CodeRabbit/PR review fixes:
- Remove redundant try-except in virtualization.py (silent failure fix)
- Add QueryCache protocol with get/put/invalidate_all to core/client.py
- Refactor subscriptions (manager, diagnostics, resources, utils)
- Update config (logging, settings) for improved structure
- Expand test coverage: http_layer, safety guards, schema validation
- Minor cleanups: array, docker, health, keys tools

Co-authored-by: Claude <noreply@anthropic.com>

unraid_mcp/tools/docker.py

@@ -233,8 +233,8 @@ async def _resolve_container_id(container_id: str, *, strict: bool = False) -> s
     data = await make_graphql_request(list_query)
     containers = safe_get(data, "docker", "containers", default=[])
 
-    # Short hex prefix: match by ID prefix before trying name matching
-    if _DOCKER_SHORT_ID_PATTERN.match(container_id):
+    # Short hex prefix: match by ID prefix before trying name matching (strict bypasses this)
+    if not strict and _DOCKER_SHORT_ID_PATTERN.match(container_id):
         id_lower = container_id.lower()
         matches: list[dict[str, Any]] = []
         for c in containers: