chore(cleanup): remove old content ideas and sustainability data

Deleted: 10 legacy topic cards (001-010), README from content/ideas/, old sustainability_topics.json, test-fix notification. These belonged to deprecated 'sustainable living' content pillar.

Ultraworked with Sisyphus

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

automation/data/notifications/test-fix.json

@@ -1,14 +0,0 @@
-{
-  "task": "test",
-  "time": "2026-04-22 19:00",
-  "topic_count": 1,
-  "case_count": 2,
-  "source_count": 3,
-  "details_link": "/test",
-  "topic_title": "测试选题",
-  "image_count": 5,
-  "output_dir": "/test",
-  "status": "测试状态",
-  "error": "",
-  "log_path": "/tmp/test.log"
-}

automation/data/sustainability_topics.json

@@ -1,54 +0,0 @@
-[
-  {
-    "id": "LIVING-001-26",
-    "title": "零浪费家庭实验：从囤积到精简的100天",
-    "cases": [],
-    "audience": "26-35岁城市焦虑青年",
-    "china_pain_points": "消费主义陷阱、快递包装泛滥、垃圾分类执行难",
-    "localization_solution": "家庭减法清单、快递包装回收点地图、社区交换市集",
-    "mvp_actions": "1. 本月减少50%快递包装 2. 建立家庭减法清单 3. 参与社区交换市集",
-    "estimated_length": 3500,
-    "priority_score": 85.5,
-    "field": "可持续生活系统",
-    "format": "趋势洞察 + 实操指南",
-    "core_concept": "少即是多，从消费主义回归生活本质",
-    "audience_pain": "被消费主义裹挟，想改变但不知道从何开始",
-    "unique_angle": "用数据量化减法效果，用真实案例展示转变过程",
-    "priority": "高",
-    "total_score": 85.5,
-    "compliance_score": 100,
-    "source_file": "automation/data/sustainability_topics.json",
-    "ready_at": "2026-05-08",
-    "published_at": null,
-    "platform_urls": {},
-    "status": "待处理",
-    "lock_by": null,
-    "lock_at": null
-  },
-  {
-    "id": "TECH-001-26",
-    "title": "AI副业入门：用DeepSeek实现第一笔收入的100天",
-    "cases": [],
-    "audience": "26-35岁城市焦虑青年",
-    "china_pain_points": "主业不稳定、副业方向迷茫、技能变现难",
-    "localization_solution": "AI工具链整合、国内平台变现路径、从0到1的实战案例",
-    "mvp_actions": "1. 学习DeepSeek基础操作 2. 找到第一个付费客户 3. 建立可复制的服务流程",
-    "estimated_length": 4000,
-    "priority_score": 88.2,
-    "field": "科技向善",
-    "format": "趋势洞察 + 实操指南",
-    "core_concept": "用AI放大个人能力，实现副业收入",
-    "audience_pain": "想搞钱但不知道从哪开始，担心AI替代自己",
-    "unique_angle": "100天真实记录，从0到第一笔收入的完整路径",
-    "priority": "高",
-    "total_score": 88.2,
-    "compliance_score": 100,
-    "source_file": "automation/data/sustainability_topics.json",
-    "ready_at": "2026-05-08",
-    "published_at": null,
-    "platform_urls": {},
-    "status": "待处理",
-    "lock_by": null,
-    "lock_at": null
-  }
-]