refactor: 跨边界导入改用 Node # subpath imports（package.json + drizzle SQL）

业务代码沿用 @/* (shadcn 等生态约定)；仅"跳出 src/"的真实跨边界场景采用 Node 标准 #name：

- #package → ./package.json：替换 @/../package.json (2 处) 这种用 alias 跳出根目录的 hack
- #drizzle/*.sql → ./drizzle/*.sql：让 codegen 输出的 migrations.gen.ts 不再走 ../../../

效果：
- tsconfig.paths 与 vite.resolve.tsconfigPaths 维持，业务代码 0 改动
- 配置仅新增 package.json#imports 4 行
- Bun runtime / Vite 8 / TS bundler / 编译产物均原生支持

端到端验证：
- 编译二进制：CREATE TABLE 和 'fullstack-starter' 内嵌 ✓
- ./server migrate：应用嵌入式迁移成功 ✓
- ./server 运行：/health、/api/spec.json (title/version)、RPC create+list、OpenAPI create、Scalar /api/docs 全部 OK ✓
- bun run dev：Vite SSR <title>fullstack-starter</title> 注入 ✓
- fix/typecheck/test/build/compile 全绿

src/routes/__root.tsx

@@ -4,7 +4,7 @@ import { ReactQueryDevtoolsPanel } from '@tanstack/react-query-devtools'
 import { createRootRouteWithContext, HeadContent, Scripts } from '@tanstack/react-router'
 import { TanStackRouterDevtoolsPanel } from '@tanstack/react-router-devtools'
 import type { ReactNode } from 'react'
-import { name } from '@/../package.json'
+import { name } from '#package'
 import { ErrorComponent } from '@/components/Error'
 import { NotFoundComponent } from '@/components/NotFound'
 import appCss from '@/styles.css?url'

src/routes/api/$.ts

@@ -3,7 +3,7 @@ import { OpenAPIReferencePlugin } from '@orpc/openapi/plugins'
 import { onError } from '@orpc/server'
 import { ZodToJsonSchemaConverter } from '@orpc/zod/zod4'
 import { createFileRoute } from '@tanstack/react-router'
-import { name, version } from '@/../package.json'
+import { name, version } from '#package'
 import { handleValidationError, logError } from '@/server/api/interceptors'
 import { router } from '@/server/api/routers'
 

src/server/db/migrations.gen.ts

@@ -1,5 +1,5 @@
 // AUTO-GENERATED by `bun run db:embed`. Do not edit.
-import sql_0 from '../../../drizzle/0000_loving_thunderbird.sql' with { type: 'text' }
+import sql_0 from '#drizzle/0000_loving_thunderbird.sql' with { type: 'text' }
 
 export type EmbeddedMigration = { tag: string; sql: string; when: number; breakpoints: boolean }