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-sync.md

@@ -0,0 +1,79 @@
+# /commit-sync - Commit, Push, and Sync
+
+## Purpose
+
+Full sync operation: commit local changes, push to remote, and sync with upstream/base branch.
+
+## Behavior
+
+### Step 1: Run /commit
+
+Execute the standard commit workflow.
+
+### Step 2: Push to Remote
+
+Push committed changes to remote branch.
+
+### Step 3: Sync with Base
+
+Pull latest from base branch and rebase/merge:
+
+```bash
+# Fetch all
+git fetch --all
+
+# Rebase on base branch
+git rebase origin/<base-branch>
+
+# Push again (if rebased)
+git push --force-with-lease
+```
+
+### Step 4: Report Status
+
+```
+Sync complete:
+
+Local:  feat/password-reset @ abc1234
+Remote: origin/feat/password-reset @ abc1234
+Base:   development @ xyz7890 (synced)
+
+Your branch is up-to-date with development.
+No conflicts detected.
+```
+
+## Environment Variables
+
+| Variable | Default | Description |
+|----------|---------|-------------|
+| `GIT_DEFAULT_BASE` | `development` | Branch to sync with |
+| `GIT_SYNC_STRATEGY` | `rebase` | How to incorporate upstream changes |
+
+## Conflict Handling
+
+If conflicts occur during rebase:
+
+```
+Conflicts detected while syncing with development.
+
+Conflicting files:
+- src/auth/login.ts
+- src/auth/types.ts
+
+Options:
+1. Open conflict resolution (I'll guide you)
+2. Abort sync (keep local state)
+3. Accept all theirs (⚠️ loses your changes in conflicts)
+4. Accept all ours (⚠️ ignores upstream in conflicts)
+```
+
+## Output
+
+On success:
+```
+Committed: abc1234
+Pushed to: origin/feat/password-reset
+Synced with: development (xyz7890)
+
+Status: Clean, up-to-date
+```