feat: implement file upload functionality and enhance admin dashboard layout

app/routes/actions.admin.upload.tsx

@@ -0,0 +1,64 @@
+import { zodResolver } from '@hookform/resolvers/zod'
+import { data } from 'react-router'
+import { getValidatedFormData } from 'remix-hook-form'
+import { XiorError } from 'xior'
+
+import { uploadFileRequest } from '~/apis/admin/upload-file'
+import { uploadSchema, type TUploadSchema } from '~/layouts/admin/form-upload'
+import { handleCookie } from '~/libs/cookies'
+
+import type { Route } from './+types/actions.register'
+
+export const action = async ({ request }: Route.ActionArgs) => {
+  const { staffToken } = await handleCookie(request)
+  try {
+    const {
+      errors,
+      data: payload,
+      receivedValues: defaultValues,
+    } = await getValidatedFormData<TUploadSchema>(
+      request,
+      zodResolver(uploadSchema),
+      false,
+    )
+
+    if (errors) {
+      return data({ success: false, errors, defaultValues }, { status: 400 })
+    }
+
+    const { data: uploadData } = await uploadFileRequest({
+      payload,
+      accessToken: staffToken,
+    })
+
+    return data(
+      {
+        success: true,
+        uploadData,
+      },
+      {
+        status: 200,
+        statusText: 'OK',
+      },
+    )
+  } catch (error) {
+    if (error instanceof XiorError) {
+      return data(
+        {
+          success: false,
+          message: error?.response?.data?.error?.message || error.message,
+        },
+        {
+          status: error?.response?.status || 500,
+        },
+      )
+    }
+    return data(
+      {
+        success: false,
+        message: 'Internal server error',
+      },
+      { status: 500 },
+    )
+  }
+}