fix: 补充执行日志 + 清理死代码

日志补充:
- browser.ts: 全部 8 个函数新增 sendLog (打开/截图/JS/提取/点击/输入/滚动/关闭)
- mcp-manager.ts: callTool 新增工具调用日志

死代码清理:
- skill-manager.ts: 删除 getAllSkillsForUI, deleteSkillById, clearAllSkills (39 行)
- memory-manager.ts: 删除 getVectorSearchResults (4 行)
- mcp-manager.ts: 删除 isServerRunning

src/renderer/services/memory-manager.ts

@@ -170,10 +170,6 @@ function triggerVectorSearch(query: string, limit: number): void {
   }, 100);
 }
 
-// 导出：获取向量搜索结果（供 UI 使用）
-export function getVectorSearchResults(query: string): MemorySearchResult[] {
-  return vectorSearchCache.get(query) || [];
-}
 
 // 关键词搜索
 function searchMemoriesByKeyword(query: string, limit: number): MemorySearchResult[] {

src/renderer/services/skill-manager.ts

@@ -182,45 +182,6 @@ export function buildSkillContext(skills: Skill[]): string {
 }
 
 /**
- * 获取所有技能（用于 UI 展示）
- */
-export async function getAllSkillsForUI(): Promise<Skill[]> {
-  const bridge = (window as any).metonaDesktop;
-  if (!bridge?.db?.getAllSkills) return [];
-  try {
-    return await bridge.db.getAllSkills();
-  } catch {
-    return [];
-  }
-}
-
-/**
- * 删除技能
- */
-export async function deleteSkillById(id: string): Promise<boolean> {
-  const bridge = (window as any).metonaDesktop;
-  if (!bridge?.db?.deleteSkill) return false;
-  try {
-    await bridge.db.deleteSkill(id);
-    return true;
-  } catch {
-    return false;
-  }
-}
-
-/**
- * 清空所有技能
- */
-export async function clearAllSkills(): Promise<boolean> {
-  const bridge = (window as any).metonaDesktop;
-  if (!bridge?.db?.clearAllSkills) return false;
-  try {
-    await bridge.db.clearAllSkills();
-    return true;
-  } catch {
-    return false;
-  }
-}
 
 // ── 辅助函数 ──