v0.11.11: 彻底移除技能系统，工具 44→42，SQLite 7→6 张表

- 删除 src/renderer/services/skill-manager.ts (480行)
- sqlite.ts: 删除 skills 表/索引/迁移/SkillRow接口/CRUD
- ipc.ts: 删除 6 个 skills IPC handler
- preload.ts/types.d.ts: 删除 skills bridge 方法/类型
- agent-engine.ts: 删除技能匹配上下文注入/自动提取
- tool-registry.ts: 删除 skill_list/skill_view 工具定义/执行
- log-service.ts/sub-agent.ts/workspace-panel.ts: 清理引用
- index.html: 帮助面板/工具卡片更新，44→42
- README/release-notes/DEVELOPMENT/AGENT: 文档全量同步

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "metona-ollama-desktop",
-  "version": "0.11.10",
+  "version": "0.11.11",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "metona-ollama-desktop",
-      "version": "0.11.10",
+      "version": "0.11.11",
       "license": "MIT",
       "dependencies": {
         "ffmpeg-static": "^5.2.0",