feat(marketplace): hook migration, projman commands, optimizations [BREAKING]

Remove all SessionStart and PostToolUse hooks across the marketplace,
retaining only PreToolUse safety hooks and UserPromptSubmit quality hooks.
Add /project and /adr command families, /hygiene check, /cv status.
Create 7 new projman skills for project lifecycle management.
Remove /pm-debug, /suggest-version, /proposal-status commands.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

plugins/contract-validator/commands/cv-status.md

@@ -0,0 +1,47 @@
+---
+description: Marketplace-wide health check across all installed plugins
+---
+
+# /cv status
+
+## Purpose
+
+Quick health check showing installed plugin status. For each marketplace plugin, reports installation state, MCP connectivity, and configuration status.
+
+## Usage
+
+```
+/cv status                    # Full status table
+/cv status --plugin projman   # Single plugin check
+```
+
+## Workflow
+
+### Step 1: Enumerate Plugins
+Read `.claude-plugin/marketplace.json` to get the full plugin list.
+
+### Step 2: Check Each Plugin
+For each plugin, verify:
+- **Installed:** `plugin.json` exists and is valid JSON
+- **MCP Connected:** If plugin has MCP servers (check `metadata.json`), verify server is responding
+- **Configured:** Required config files present
+- **Version:** Read from `plugin.json`
+- **Domain:** Read from `plugin.json`
+
+### Step 3: Display Results
+
+```
+| Plugin                   | Domain | Version | Installed | MCP | Configured |
+|--------------------------|--------|---------|-----------|-----|------------|
+| projman                  | core   | 3.4.0   | Y         | Y   | Y          |
+| git-flow                 | core   | 1.2.0   | Y         | -   | Y          |
+| cmdb-assistant           | ops    | 1.2.0   | Y         | N   | N          |
+
+Summary: 12/12 installed, 4/5 MCP connected, 11/12 configured
+```
+
+## Notes
+
+- MCP column shows `-` for plugins without MCP servers
+- `N` in MCP means the server is defined but not responding
+- `N` in Configured means the setup check found issues