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>

plugins/git-flow/commands/commit-merge.md

@@ -0,0 +1,83 @@
+# /commit-merge - Commit and Merge
+
+## Purpose
+
+Commit current changes, then merge the current branch into a target branch.
+
+## Behavior
+
+### Step 1: Run /commit
+
+Execute the standard commit workflow.
+
+### Step 2: Identify Target Branch
+
+Check environment or ask:
+
+```
+Merge into which branch?
+1. development (Recommended - GIT_DEFAULT_BASE)
+2. main
+3. Other: ____
+```
+
+### Step 3: Merge Strategy
+
+```
+How should I merge?
+1. Merge commit (preserves history)
+2. Squash and merge (single commit)
+3. Rebase (linear history)
+```
+
+### Step 4: Execute Merge
+
+```bash
+# Switch to target
+git checkout <target>
+
+# Pull latest
+git pull origin <target>
+
+# Merge feature branch
+git merge <feature-branch> [--squash] [--no-ff]
+
+# Push
+git push origin <target>
+```
+
+### Step 5: Cleanup (Optional)
+
+```
+Merge complete. Delete the feature branch?
+1. Yes, delete local and remote (Recommended)
+2. Delete local only
+3. Keep the branch
+```
+
+## Environment Variables
+
+| Variable | Default | Description |
+|----------|---------|-------------|
+| `GIT_DEFAULT_BASE` | `development` | Default branch to merge into |
+| `GIT_MERGE_STRATEGY` | `merge` | Default merge strategy |
+| `GIT_AUTO_DELETE_MERGED` | `true` | Auto-delete merged branches |
+
+## Safety Checks
+
+- Verify target branch exists
+- Check for uncommitted changes before switching
+- Ensure merge doesn't conflict (preview first)
+
+## Output
+
+On success:
+```
+Committed: abc1234
+feat(auth): add password reset functionality
+
+Merged feat/password-reset → development
+Deleted branch: feat/password-reset
+
+development is now at: def5678
+```