chore: migrate to pnpm workspaces monorepo with Turborepo

- Restructure directories: apps/api, apps/admin, apps/website
- Add root pnpm-workspace.yaml, turbo.json, .prettierrc, .gitignore
- Rename packages to @inkreach/api, @inkreach/admin, @inkreach/website
- Add shared packages: packages/tsconfig, packages/shared-types
- Add pnpm.onlyBuiltDependencies for native builds
- Update docs: README.md, structs.md
- All three projects build successfully

apps/admin/src/api/countries.ts

@@ -0,0 +1,35 @@
+import request from './request'
+import type {
+  Country,
+  CreateCountryRequest,
+  UpdateCountryRequest,
+  CountryFilter,
+  PaginatedResult,
+} from '@/types'
+
+export const countriesApi = {
+  // Get countries list
+  getCountriesList: (params: CountryFilter) => {
+    return request.get<any, PaginatedResult<Country>>('/countries', { params })
+  },
+
+  // Get country by id
+  getCountryById: (id: string) => {
+    return request.get<any, Country>(`/countries/${id}`)
+  },
+
+  // Create country
+  createCountry: (data: CreateCountryRequest) => {
+    return request.post<any, Country>('/countries', data)
+  },
+
+  // Update country
+  updateCountry: (id: string, data: UpdateCountryRequest) => {
+    return request.patch<any, Country>(`/countries/${id}`, data)
+  },
+
+  // Delete country
+  deleteCountry: (id: string) => {
+    return request.delete(`/countries/${id}`)
+  },
+}