feat(projman): add RFC system for feature tracking

Implement wiki-based Request for Comments system for capturing,
reviewing, and tracking feature ideas through their lifecycle.

New commands:
- /rfc-create: Create RFC from conversation or clarified spec
- /rfc-list: List RFCs grouped by status
- /rfc-review: Submit Draft RFC for review
- /rfc-approve: Approve RFC for sprint planning
- /rfc-reject: Reject RFC with documented reason

RFC lifecycle: Draft → Review → Approved → Implementing → Implemented

Integration:
- /sprint-plan detects approved RFCs and offers selection
- /sprint-close updates RFC status on completion
- clarity-assist suggests /rfc-create for feature ideas

New MCP tool: allocate_rfc_number

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

plugins/projman/claude-md-integration.md

@@ -12,6 +12,11 @@ This project uses the **projman** plugin for sprint planning and project managem
 | `/sprint-close` | Complete sprint and capture lessons learned to Gitea Wiki |
 | `/labels-sync` | Synchronize label taxonomy from Gitea |
 | `/initial-setup` | Run initial setup for projman plugin |
+| `/rfc-create` | Create new RFC from conversation or clarified spec |
+| `/rfc-list` | List all RFCs grouped by status |
+| `/rfc-review` | Submit Draft RFC for review |
+| `/rfc-approve` | Approve RFC for sprint planning |
+| `/rfc-reject` | Reject RFC with documented reason |
 
 ### MCP Tools Available
 
@@ -40,12 +45,14 @@ The following Gitea MCP tools are available for issue and project management:
 - `create_issue_dependency` - Create dependency between issues
 - `get_execution_order` - Get parallel execution batches
 
-**Wiki (Lessons Learned):**
+**Wiki (Lessons Learned & RFCs):**
 - `list_wiki_pages` - List wiki pages
 - `get_wiki_page` - Fetch specific page content
 - `create_wiki_page` - Create new wiki page
+- `update_wiki_page` - Update existing wiki page
 - `create_lesson` - Create lessons learned document
 - `search_lessons` - Search past lessons by tags
+- `allocate_rfc_number` - Get next available RFC number
 
 ### Usage Guidelines