chore(marketplace): add publish-plugin, rewrite init.sh, cleanup obsolete plugins

- Add publish-plugin: marketplace publish + Feishu bot notification
- Rewrite init.sh: SSE-first, fixed prod API, remove env selection
- Update CLAUDE.md, README.md, claude-config.yaml
- Update skills: req-plugin, req-prd-plugin, pull-request-plugin
- Delete sync-skills.sh (obsolete)
- Delete deprecated plugins: skills-ops/*, skills-projects/*, old skills-dev/req duplicates
- Regenerate marketplace.json (27 plugins)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

skills-dev/pull-request-plugin/skills/SKILL.md

@@ -199,3 +199,50 @@ One paragraph explaining the motivation.
     ↓
 tea pr merge 42
 ```
+
+## Finishing a Branch
+
+Verify tests pass, then create PR. Use after implementation is complete.
+
+**Core principle:** Verify tests → Create PR → Done.
+
+### Process
+
+1. **Verify Tests** — Run project's test suite before creating PR:
+   ```bash
+   npm test / cargo test / pytest / go test ./... / mvn test
+   ```
+   - Tests fail → Stop, show failures, fix first. Cannot proceed.
+   - Tests pass → Continue to step 2.
+
+2. **Create PR** — Use `/pr create` (checks for existing PR, avoids duplicates). Report PR URL.
+
+3. **Cleanup Worktree** (if applicable):
+   ```bash
+   git worktree list | grep $(git branch --show-current)
+   # If in worktree, ask user to confirm removal
+   git worktree remove <worktree-path>
+   ```
+
+**Never:** Create PR with failing tests. Skip test verification. Force-push without request.
+
+## Plan Execution
+
+Load plan → create branch → execute tasks in batches → report for review between batches.
+
+### Process
+
+1. **Load Plan**: Read plan file, review critically, raise concerns before starting
+2. **Setup Branch**: Use `/pr start` or manual `git checkout -b <type>/<name> origin/main`
+3. **Execute Batch**: Default 3 tasks per batch, mark in_progress → completed
+4. **Report**: Show implementation + verification output. Say: "Ready for feedback."
+5. **Continue**: Apply feedback, execute next batch, repeat
+6. **Complete**: Use "Finishing a Branch" workflow above
+
+### Stop Conditions
+
+- Hit blocker (missing dependency, test fails, instruction unclear)
+- Plan has critical gaps preventing starting
+- Verification fails repeatedly
+
+**Ask for clarification rather than guessing.**