refactor: skill 脚本输出改为结构化 JSON

- query_weather: {location, now: {temp,text}, forecast: [{date,day,night,tempMin,tempMax}]}
- search_web: {query, answer, results: [{title,url,content}]}
- get_current_datetime: {datetime}
- list_scheduled_tasks: {tasks: [{name,description,enabled,command,...}]}
- manage_scheduled_task: {ok, action, name} / {error}

LLM 直接看到结构化数据，不再依赖脚本拼接的中文自然语言

resources/skills/search_web/scripts/search.sh

@@ -1,54 +1,29 @@
 #!/bin/bash
-# Tavily 搜索
-
+# Tavily 搜索 → JSON 输出
 read -r input
-QUERY=$(echo "$input" | python3 -c "
-import sys, json
-d = json.load(sys.stdin)
-print(d.get('query', ''))
-" 2>/dev/null)
+QUERY=$(echo "$input" | python3 -c "import sys,json; print(json.load(sys.stdin).get('query',''))" 2>/dev/null)
+COUNT=$(echo "$input" | python3 -c "import sys,json; print(json.load(sys.stdin).get('count',5))" 2>/dev/null)
 
-COUNT=$(echo "$input" | python3 -c "
-import sys, json
-d = json.load(sys.stdin)
-print(d.get('count', 5))
-" 2>/dev/null)
-
-if [ -z "$QUERY" ]; then
-  echo "请提供 query 参数"
-  exit 1
-fi
+[ -z "$QUERY" ] && echo '{"error":"请提供 query 参数"}' && exit 0
 
 API_KEY="${TAVILY_API_KEY}"
-if [ -z "$API_KEY" ]; then
-  echo "请设置 TAVILY_API_KEY 环境变量"
-  exit 1
-fi
+[ -z "$API_KEY" ] && echo '{"error":"请设置 TAVILY_API_KEY"}' && exit 0
 
 RESP=$(curl -s -X POST "https://api.tavily.com/search" \
   -H "Content-Type: application/json" \
   -d "{\"api_key\":\"$API_KEY\",\"query\":\"$QUERY\",\"max_results\":$COUNT,\"include_answer\":true}")
 
-# 解析并输出
-ANSWER=$(echo "$RESP" | python3 -c "
-import sys, json
-d = json.load(sys.stdin)
-answer = d.get('answer', '')
-results = d.get('results', [])
-lines = []
-if answer:
-    lines.append(f'总结: {answer}')
-    lines.append('')
-for i, r in enumerate(results[:$COUNT], 1):
-    title = r.get('title', '无标题')
-    url = r.get('url', '')
-    content = r.get('content', '')[:200]
-    lines.append(f'{i}. {title}')
-    lines.append(f'   {url}')
-    if content:
-        lines.append(f'   {content}')
-    lines.append('')
-print('\\n'.join(lines))
-" 2>/dev/null)
-
-echo "$ANSWER"
+export RESP QUERY COUNT
+python3 -c "
+import os, json
+d = json.loads(os.environ['RESP'])
+result = {
+    'query': os.environ['QUERY'],
+    'answer': d.get('answer', ''),
+    'results': [
+        {'title': r.get('title', ''), 'url': r.get('url', ''), 'content': r.get('content', '')[:300]}
+        for r in d.get('results', [])[:int(os.environ['COUNT'])]
+    ]
+}
+print(json.dumps(result, ensure_ascii=False))
+" 2>/dev/null || echo '{"error":"搜索请求失败"}'