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/scripts/tavily_search.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Wrapper to run the Node Tavily search CLI.
+# Usage:
+#   TAVILY_API_KEY=... ./tavily_search.sh --query "..." --max_results 5
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+exec node "$DIR/tavily_search.js" "$@"