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/projman/commands/labels-sync.md

@@ -36,6 +36,8 @@ Run `/labels-sync` when setting up the plugin or after taxonomy updates.
 | Priority/* | Low, Medium, High, Critical |
 | Complexity/* | Simple, Medium, Complex |
 | Efforts/* | XS, S, M, L, XL |
+| Epic/* | Database, API, Frontend, Auth, Infrastructure |
+| RnD/* | Friction, Gap, Pattern, Automation |
 
 ## DO NOT