add 6 skills to repo + update skill-review for xiaoming

- Add code-interpreter, kokoro-tts, remotion-best-practices,
  research-to-paper-slides, summarize, tavily-tool to source repo
- skill-review: add main/xiaoming agent mapping in handler.ts + SKILL.md
- tts-voice: handler.ts updates from agent workspace

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

skills/tavily-tool/SKILL.md

@@ -0,0 +1,46 @@
+---
+name: tavily
+description: Use Tavily web search/discovery to find URLs/sources, do lead research, gather up-to-date links, or produce a cited summary from web results.
+metadata: {"openclaw":{"requires":{"env":["TAVILY_API_KEY"]},"primaryEnv":"TAVILY_API_KEY"}}
+---
+
+# Tavily
+
+Use the bundled CLI to run Tavily searches from the terminal and collect sources fast.
+
+## Quick start (CLI)
+
+The scripts **require** `TAVILY_API_KEY` in the environment (sent as `Authorization: Bearer ...`).
+
+```bash
+export TAVILY_API_KEY="..."
+node skills/tavily/scripts/tavily_search.js --query "best rust http client" --max_results 5
+```
+
+- JSON response is printed to **stdout**.
+- A simple URL list is printed to **stderr** by default.
+
+## Common patterns
+
+### Get URLs only
+
+```bash
+export TAVILY_API_KEY="..."
+node skills/tavily/scripts/tavily_search.js --query "OpenTelemetry collector config" --urls-only
+```
+
+### Restrict to (or exclude) specific domains
+
+```bash
+export TAVILY_API_KEY="..."
+node skills/tavily/scripts/tavily_search.js \
+  --query "oauth device code flow" \
+  --include_domains oauth.net,datatracker.ietf.org \
+  --exclude_domains medium.com
+```
+
+## Notes
+
+- The bundled CLI supports a subset of Tavily’s request fields (query, max_results, include_domains, exclude_domains).
+- For API field notes and more examples, read: `references/tavily-api.md`.
+- Wrapper script (optional): `scripts/tavily_search.sh`.