feat: add read-only bird boundary

src/features/posts/server-functions.ts

@@ -0,0 +1,38 @@
+import { createServerFn } from '@tanstack/react-start'
+import { searchPageInputSchema, userPageInputSchema } from './inputs'
+import { loadUserPage, searchPage } from './post-service'
+import type { LoadResult } from './types'
+
+const configFailure = (): LoadResult => ({
+  ok: false,
+  error: {
+    code: 'relay-config',
+    message: 'TWITTER_RELAY_BASE_URL を設定してください。',
+    retryable: false,
+  },
+})
+
+async function reader() {
+  const { getBirdReader } = await import('./bird-client.server')
+  return getBirdReader()
+}
+
+export const loadUserPosts = createServerFn({ method: 'GET' })
+  .validator(userPageInputSchema)
+  .handler(async ({ data }) => {
+    try {
+      return await loadUserPage(await reader(), data)
+    } catch {
+      return configFailure()
+    }
+  })
+
+export const searchPosts = createServerFn({ method: 'GET' })
+  .validator(searchPageInputSchema)
+  .handler(async ({ data }) => {
+    try {
+      return await searchPage(await reader(), data)
+    } catch {
+      return configFailure()
+    }
+  })