feat: add plugin integration analysis to config-analyze command

Add automatic detection of active marketplace plugins and verification
that CLAUDE.md properly references them. This ensures projects using
marketplace plugins will have proper documentation to guide Claude Code
in using available tools.

Changes:
- Add claude-md-integration.md snippets to all 4 plugins (projman,
  cmdb-assistant, claude-config-maintainer, project-hygiene)
- Update marketplace.json with MCP server mappings for plugin detection
- Enhance /config-analyze to detect active plugins via MCP server names
- Update maintainer agent with plugin integration workflow
- Add plugin coverage percentage to analysis report
- User confirmation required before adding plugin references

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docs/CANONICAL-PATHS.md

@@ -26,7 +26,8 @@ support-claude-mktplace/
 │   │   │   └── gitea/          # Gitea + Wiki tools
 │   │   ├── commands/
 │   │   ├── agents/
-│   │   └── skills/
+│   │   ├── skills/
+│   │   └── claude-md-integration.md  # CLAUDE.md integration snippet
 │   ├── projman-pmo/
 │   ├── project-hygiene/
 │   ├── cmdb-assistant/
@@ -34,11 +35,17 @@ support-claude-mktplace/
 │   │   ├── mcp-servers/        # MCP servers bundled IN plugin
 │   │   │   └── netbox/
 │   │   ├── commands/
-│   │   └── agents/
-│   └── claude-config-maintainer/
+│   │   ├── agents/
+│   │   └── claude-md-integration.md  # CLAUDE.md integration snippet
+│   ├── claude-config-maintainer/
+│   │   ├── .claude-plugin/
+│   │   ├── commands/
+│   │   ├── agents/
+│   │   └── claude-md-integration.md  # CLAUDE.md integration snippet
+│   └── project-hygiene/
 │       ├── .claude-plugin/
-│       ├── commands/
-│       └── agents/
+│       ├── hooks/
+│       └── claude-md-integration.md  # CLAUDE.md integration snippet
 ├── scripts/                    # Setup and maintenance scripts
 ├── CLAUDE.md
 ├── README.md
@@ -60,6 +67,7 @@ support-claude-mktplace/
 | Plugin commands | `plugins/{plugin-name}/commands/` | `plugins/projman/commands/` |
 | Plugin agents | `plugins/{plugin-name}/agents/` | `plugins/projman/agents/` |
 | Plugin .mcp.json | `plugins/{plugin-name}/.mcp.json` | `plugins/projman/.mcp.json` |
+| Plugin integration snippet | `plugins/{plugin-name}/claude-md-integration.md` | `plugins/projman/claude-md-integration.md` |
 
 ### MCP Server Paths (Bundled in Plugins)
 
@@ -149,5 +157,6 @@ MCP servers are bundled inside each plugin (not shared at root) because:
 
 | Date | Change | By |
 |------|--------|-----|
+| 2026-01-19 | Added claude-md-integration.md path pattern for plugin integration snippets | Claude Code |
 | 2025-12-15 | Restructured: MCP servers now bundled in plugins | Claude Code |
 | 2025-12-12 | Initial creation | Claude Code |