refactor: 优化项目结构 — 修复拼写、提取共享 interceptor、扁平化 db 目录、清理空包

AGENTS.md

@@ -12,7 +12,7 @@ Guidelines for AI agents working in this Bun monorepo.
 - **Apps**:
   - `apps/server` - TanStack Start fullstack web app (see `apps/server/AGENTS.md`)
   - `apps/desktop` - Electron desktop shell, sidecar server pattern (see `apps/desktop/AGENTS.md`)
-- **Packages**: `packages/utils`, `packages/tsconfig` (shared configs)
+- **Packages**: `packages/tsconfig` (shared TS configs)
 
 ## Build / Lint / Test Commands
 
@@ -207,8 +207,7 @@ export const myTable = pgTable('my_table', {
 │       ├── electron-builder.yml   # Packaging config
 │       └── AGENTS.md
 ├── packages/
-│   ├── tsconfig/         # Shared TS configs
-│   └── utils/            # Shared utilities
+│   └── tsconfig/         # Shared TS configs
 ├── biome.json            # Linting/formatting config
 ├── turbo.json            # Turbo task orchestration
 └── package.json          # Workspace root + dependency catalog