refactor(tools)!: consolidate 15 individual tools into single unified unraid tool

BREAKING CHANGE: Replaces 15 separate MCP tools (unraid_info, unraid_array,
unraid_storage, unraid_docker, unraid_vm, unraid_notifications, unraid_rclone,
unraid_users, unraid_keys, unraid_health, unraid_settings, unraid_customization,
unraid_plugins, unraid_oidc, unraid_live) with a single `unraid` tool using
action (domain) + subaction (operation) routing.

New interface: unraid(action="system", subaction="overview") replaces
unraid_info(action="overview"). All 15 domains and ~108 subactions preserved.

- Add unraid_mcp/tools/unraid.py (1891 lines, all domains consolidated)
- Remove 15 individual tool files
- Update tools/__init__.py to register single unified tool
- Update server.py for new tool registration pattern
- Update subscriptions/manager.py and resources.py for new tool names
- Update all 25 test files + integration/contract/safety/schema/property tests
- Update mcporter smoke-test script for new tool interface
- Bump version 0.6.0 → 1.0.0

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

.claude-plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "unraid",
   "description": "Query and monitor Unraid servers via GraphQL API - array status, disk health, containers, VMs, system monitoring",
-  "version": "0.6.0",
+  "version": "1.0.0",
   "author": {
     "name": "jmagar",
     "email": "jmagar@users.noreply.github.com"