feat(server): support importing users with password (#11978)

<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit

- **New Features**
  - Added support for an optional password field when creating a new user via the user creation form or API.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/backend/server/src/core/user/resolver.ts

@@ -201,6 +201,9 @@ class CreateUserInput {
 
   @Field(() => String, { nullable: true })
   name?: string;
+
+  @Field(() => String, { nullable: true })
+  password?: string;
 }
 
 @InputType()
@@ -292,7 +295,7 @@ export class UserManagementResolver {
     @Args({ name: 'input', type: () => CreateUserInput }) input: CreateUserInput
   ) {
     const { id } = await this.models.user.create({
-      email: input.email,
+      ...input,
       registered: true,
     });
 

packages/backend/server/src/schema.gql

@@ -340,6 +340,7 @@ input CreateCopilotPromptInput {
 input CreateUserInput {
   email: String!
   name: String
+  password: String
 }
 
 type CredentialsRequirementType {

packages/common/graphql/src/schema.ts

@@ -444,6 +444,7 @@ export interface CreateCopilotPromptInput {
 export interface CreateUserInput {
   email: Scalars['String']['input'];
   name?: InputMaybe<Scalars['String']['input']>;
+  password?: InputMaybe<Scalars['String']['input']>;
 }
 
 export interface CredentialsRequirementType {