refactor(projman): extract skills and consolidate commands

Major refactoring of projman plugin architecture:

Skills Extraction (17 new files):
- Extracted reusable knowledge from commands and agents into skills/
- branch-security, dependency-management, git-workflow, input-detection
- issue-conventions, lessons-learned, mcp-tools-reference, planning-workflow
- progress-tracking, repo-validation, review-checklist, runaway-detection
- setup-workflows, sprint-approval, task-sizing, test-standards, wiki-conventions

Command Consolidation (17 → 12 commands):
- /setup: consolidates initial-setup, project-init, project-sync (--full/--quick/--sync)
- /debug: consolidates debug-report, debug-review (report/review modes)
- /test: consolidates test-check, test-gen (run/gen modes)
- /sprint-status: absorbs sprint-diagram via --diagram flag

Architecture Cleanup:
- Remove plugin-level mcp-servers/ symlinks (6 plugins)
- Remove plugin README.md files (12 files, ~2000 lines)
- Update all documentation to reflect new command structure
- Fix documentation drift in CONFIGURATION.md, COMMANDS-CHEATSHEET.md

Commands are now thin dispatchers (~20-50 lines) that reference skills.
Agents reference skills for domain knowledge instead of inline content.

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

plugins/doc-guardian/README.md

@@ -1,53 +0,0 @@
-# doc-guardian
-
-Automatic documentation drift detection and synchronization for Claude Code projects.
-
-## Problem Solved
-
-Documentation gets outdated. Functions get renamed, configs change, versions bump—but docs lag behind. This creates:
-- Multiple review cycles finding stale references
-- Unnecessary commits fixing docs piecemeal
-- User confusion from outdated instructions
-
-## Solution
-
-doc-guardian monitors your code changes via hooks:
-1. Detects when changes might affect documentation
-2. Alerts you to potential drift (doesn't interrupt your flow)
-3. Provides commands to audit and sync docs when ready
-
-## Commands
-
-| Command | Description |
-|---------|-------------|
-| `/doc-audit` | Full project scan - reports all drift without changing anything |
-| `/doc-sync` | Apply all pending documentation updates in one commit |
-| `/changelog-gen` | Generate changelog from conventional commits in Keep-a-Changelog format |
-| `/doc-coverage` | Calculate documentation coverage percentage for functions and classes |
-| `/stale-docs` | Detect documentation files that are stale relative to their associated code |
-
-## Hooks
-
-- **PostToolUse (Write|Edit)**: Silently checks if code changes affect docs
-
-## What It Detects
-
-- **Broken References**: Function/class renamed but docs still use old name
-- **Version Drift**: Python 3.9 in docs but 3.11 in pyproject.toml
-- **Missing Docs**: Public functions without docstrings
-- **Stale Examples**: CLI examples that no longer work
-- **Low Coverage**: Undocumented functions and classes
-- **Stale Files**: Documentation that hasn't been updated alongside code changes
-
-## Installation
-
-This plugin is part of the Leo Claude Marketplace.
-
-```bash
-/plugin marketplace add https://gitea.hotserv.cloud/personal-projects/leo-claude-mktplace.git
-/plugin install doc-guardian
-```
-
-## Integration
-
-See claude-md-integration.md for CLAUDE.md additions.