fix: restore complete admin feature dependencies

src/lib/safe-action-shared.ts

@@ -0,0 +1,51 @@
+import { ZodError } from 'zod'
+
+// ── Action Result Type ───────────────────────────────────────────────
+
+export type ActionResult<T = Record<string, unknown>> =
+  | { ok: true; data?: T }
+  | { ok: false; error: string; fieldErrors?: Record<string, string[]> }
+
+// ── Helper to build results ──────────────────────────────────────────
+
+export function actionOk<T = Record<string, unknown>>(data?: T): ActionResult<T> {
+  return { ok: true, data: data ?? ({} as T) }
+}
+
+export function actionError(message: string): ActionResult<never> {
+  return { ok: false, error: message }
+}
+
+// ── Throwable error ──────────────────────────────────────────────────
+
+export class ActionError extends Error {
+  constructor(message: string) {
+    super(message)
+    this.name = 'ActionError'
+  }
+}
+
+// ── Error handler ────────────────────────────────────────────────────
+
+export function handleActionError(error: unknown): ActionResult<never> {
+  if (error instanceof ZodError) {
+    return {
+      ok: false,
+      error: 'Validation failed',
+      fieldErrors: error.flatten().fieldErrors as Record<string, string[]>,
+    }
+  }
+  if (error instanceof Error && error.name === 'ActionError') {
+    return { ok: false, error: error.message }
+  }
+  // Prisma P2025
+  if (
+    error instanceof Error &&
+    error.constructor.name === 'PrismaClientKnownRequestError' &&
+    (error as Error & { code?: string }).code === 'P2025'
+  ) {
+    return { ok: false, error: 'Not found' }
+  }
+  console.error('[Action error]', error)
+  return { ok: false, error: 'Internal server error' }
+}