feat: v3.0.0 architecture overhaul

- Rename marketplace to lm-claude-plugins
- Move MCP servers to root with symlinks
- Add 6 PR tools to Gitea MCP (list_pull_requests, get_pull_request,
  get_pr_diff, get_pr_comments, create_pr_review, add_pr_comment)
- Add clarity-assist plugin (prompt optimization with ND accommodations)
- Add git-flow plugin (workflow automation)
- Add pr-review plugin (multi-agent review with confidence scoring)
- Centralize configuration docs
- Update all documentation for v3.0.0

BREAKING CHANGE: MCP server paths changed, marketplace renamed

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

mcp-servers/gitea/mcp_server/tools/__init__.py

@@ -0,0 +1,11 @@
+"""
+MCP tools for Gitea integration.
+
+This package provides MCP tool implementations for:
+- Issue operations (issues.py)
+- Label management (labels.py)
+- Wiki operations (wiki.py)
+- Milestone management (milestones.py)
+- Issue dependencies (dependencies.py)
+- Pull request operations (pull_requests.py)
+"""