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/project-hygiene/.claude-plugin/plugin.json

@@ -16,18 +16,6 @@
     "hooks",
     "maintenance"
   ],
-  "hooks": {
-    "PostToolUse": [
-      {
-        "matcher": "Write|Edit",
-        "hooks": [
-          {
-            "type": "command",
-            "command": "${CLAUDE_PLUGIN_ROOT}/hooks/cleanup.sh"
-          }
-        ]
-      }
-    ]
-  },
-  "domain": "core"
+  "domain": "core",
+  "commands": ["./commands/"]
 }