diff --git a/api/controllers/web/remote_files.py b/api/controllers/web/remote_files.py
index fe31e9d4ac..ff583acd5c 100644
--- a/api/controllers/web/remote_files.py
+++ b/api/controllers/web/remote_files.py
@@ -16,7 +16,7 @@ from fields.file_fields import FileWithSignedUrl, RemoteFileInfo
 from graphon.file import helpers as file_helpers
 from services.file_service import FileService
 
-from ..common.schema import register_schema_models
+from ..common.schema import register_response_schema_models, register_schema_models
 from . import web_ns
 from .wraps import WebApiResource
 
@@ -25,7 +25,8 @@ class RemoteFileUploadPayload(BaseModel):
     url: HttpUrl = Field(description="Remote file URL")
 
 
-register_schema_models(web_ns, RemoteFileUploadPayload, RemoteFileInfo, FileWithSignedUrl)
+register_schema_models(web_ns, RemoteFileUploadPayload)
+register_response_schema_models(web_ns, RemoteFileInfo, FileWithSignedUrl)
 
 
 @web_ns.route("/remote-files/<path:url>")
diff --git a/api/fields/file_fields.py b/api/fields/file_fields.py
index a3987a7e40..eb10308851 100644
--- a/api/fields/file_fields.py
+++ b/api/fields/file_fields.py
@@ -2,7 +2,7 @@ from __future__ import annotations
 
 from datetime import datetime
 
-from pydantic import field_validator
+from pydantic import ConfigDict, field_validator
 
 from fields.base import ResponseModel
 from libs.helper import to_timestamp
@@ -49,6 +49,8 @@ class RemoteFileInfo(ResponseModel):
 
 
 class FileWithSignedUrl(ResponseModel):
+    model_config = ConfigDict(json_schema_serialization_defaults_required=True)
+
     id: str
     name: str
     size: int
diff --git a/api/services/feature_service.py b/api/services/feature_service.py
index 257c4bea9a..461cc8b30c 100644
--- a/api/services/feature_service.py
+++ b/api/services/feature_service.py
@@ -10,27 +10,31 @@ from services.billing_service import BillingService
 from services.enterprise.enterprise_service import EnterpriseService
 
 
-class SubscriptionModel(BaseModel):
+class FeatureResponseModel(BaseModel):
+    model_config = ConfigDict(json_schema_serialization_defaults_required=True, protected_namespaces=())
+
+
+class SubscriptionModel(FeatureResponseModel):
     plan: str = CloudPlan.SANDBOX
     interval: str = ""
 
 
-class BillingModel(BaseModel):
+class BillingModel(FeatureResponseModel):
     enabled: bool = False
     subscription: SubscriptionModel = SubscriptionModel()
 
 
-class EducationModel(BaseModel):
+class EducationModel(FeatureResponseModel):
     enabled: bool = False
     activated: bool = False
 
 
-class LimitationModel(BaseModel):
+class LimitationModel(FeatureResponseModel):
     size: int = 0
     limit: int = 0
 
 
-class LicenseLimitationModel(BaseModel):
+class LicenseLimitationModel(FeatureResponseModel):
     """
     - enabled: whether this limit is enforced
     - size: current usage count
@@ -56,7 +60,7 @@ class LicenseLimitationModel(BaseModel):
         return (self.limit - self.size) >= required
 
 
-class Quota(BaseModel):
+class Quota(FeatureResponseModel):
     usage: int = 0
     limit: int = 0
     reset_date: int = -1
@@ -71,13 +75,13 @@ class LicenseStatus(StrEnum):
     LOST = "lost"
 
 
-class LicenseModel(BaseModel):
+class LicenseModel(FeatureResponseModel):
     status: LicenseStatus = LicenseStatus.NONE
     expired_at: str = ""
     workspaces: LicenseLimitationModel = LicenseLimitationModel(enabled=False, size=0, limit=0)
 
 
-class BrandingModel(BaseModel):
+class BrandingModel(FeatureResponseModel):
     enabled: bool = False
     application_title: str = ""
     login_page_logo: str = ""
@@ -85,11 +89,11 @@ class BrandingModel(BaseModel):
     favicon: str = ""
 
 
-class WebAppAuthSSOModel(BaseModel):
+class WebAppAuthSSOModel(FeatureResponseModel):
     protocol: str = ""
 
 
-class WebAppAuthModel(BaseModel):
+class WebAppAuthModel(FeatureResponseModel):
     enabled: bool = False
     allow_sso: bool = False
     sso_config: WebAppAuthSSOModel = WebAppAuthSSOModel()
@@ -97,7 +101,7 @@ class WebAppAuthModel(BaseModel):
     allow_email_password_login: bool = False
 
 
-class KnowledgePipeline(BaseModel):
+class KnowledgePipeline(FeatureResponseModel):
     publish_enabled: bool = False
 
 
@@ -108,7 +112,7 @@ class PluginInstallationScope(StrEnum):
     ALL = "all"
 
 
-class PluginInstallationPermissionModel(BaseModel):
+class PluginInstallationPermissionModel(FeatureResponseModel):
     # Plugin installation scope – possible values:
     #   none: prohibit all plugin installations
     #   official_only: allow only Dify official plugins
@@ -121,7 +125,7 @@ class PluginInstallationPermissionModel(BaseModel):
     restrict_to_marketplace_only: bool = False
 
 
-class FeatureModel(BaseModel):
+class FeatureModel(FeatureResponseModel):
     billing: BillingModel = BillingModel()
     education: EducationModel = EducationModel()
     members: LimitationModel = LimitationModel(size=0, limit=1)
@@ -141,23 +145,21 @@ class FeatureModel(BaseModel):
     api_rate_limit: Quota = Quota(usage=0, limit=5000, reset_date=0)
     # Controls whether email delivery is allowed for HumanInput nodes.
     human_input_email_delivery_enabled: bool = False
-    # pydantic configs
-    model_config = ConfigDict(protected_namespaces=())
     knowledge_pipeline: KnowledgePipeline = KnowledgePipeline()
     next_credit_reset_date: int = 0
 
 
-class KnowledgeRateLimitModel(BaseModel):
+class KnowledgeRateLimitModel(FeatureResponseModel):
     enabled: bool = False
     limit: int = 10
     subscription_plan: str = ""
 
 
-class PluginManagerModel(BaseModel):
+class PluginManagerModel(FeatureResponseModel):
     enabled: bool = False
 
 
-class SystemFeatureModel(BaseModel):
+class SystemFeatureModel(FeatureResponseModel):
     app_dsl_version: str = ""
     sso_enforced_for_signin: bool = False
     sso_enforced_for_signin_protocol: str = ""
diff --git a/packages/contracts/generated/api/console/features/types.gen.ts b/packages/contracts/generated/api/console/features/types.gen.ts
index ce79721122..411e062afb 100644
--- a/packages/contracts/generated/api/console/features/types.gen.ts
+++ b/packages/contracts/generated/api/console/features/types.gen.ts
@@ -5,62 +5,62 @@ export type ClientOptions = {
 }
 
 export type FeatureModel = {
-  annotation_quota_limit?: LimitationModel
-  api_rate_limit?: Quota
-  apps?: LimitationModel
-  billing?: BillingModel
-  can_replace_logo?: boolean
-  dataset_operator_enabled?: boolean
-  docs_processing?: string
-  documents_upload_quota?: LimitationModel
-  education?: EducationModel
-  human_input_email_delivery_enabled?: boolean
-  is_allow_transfer_workspace?: boolean
-  knowledge_pipeline?: KnowledgePipeline
-  knowledge_rate_limit?: number
-  members?: LimitationModel
-  model_load_balancing_enabled?: boolean
-  next_credit_reset_date?: number
-  trigger_event?: Quota
-  vector_space?: LimitationModel
-  webapp_copyright_enabled?: boolean
-  workspace_members?: LicenseLimitationModel
+  annotation_quota_limit: LimitationModel
+  api_rate_limit: Quota
+  apps: LimitationModel
+  billing: BillingModel
+  can_replace_logo: boolean
+  dataset_operator_enabled: boolean
+  docs_processing: string
+  documents_upload_quota: LimitationModel
+  education: EducationModel
+  human_input_email_delivery_enabled: boolean
+  is_allow_transfer_workspace: boolean
+  knowledge_pipeline: KnowledgePipeline
+  knowledge_rate_limit: number
+  members: LimitationModel
+  model_load_balancing_enabled: boolean
+  next_credit_reset_date: number
+  trigger_event: Quota
+  vector_space: LimitationModel
+  webapp_copyright_enabled: boolean
+  workspace_members: LicenseLimitationModel
 }
 
 export type LimitationModel = {
-  limit?: number
-  size?: number
+  limit: number
+  size: number
 }
 
 export type Quota = {
-  limit?: number
-  reset_date?: number
-  usage?: number
+  limit: number
+  reset_date: number
+  usage: number
 }
 
 export type BillingModel = {
-  enabled?: boolean
-  subscription?: SubscriptionModel
+  enabled: boolean
+  subscription: SubscriptionModel
 }
 
 export type EducationModel = {
-  activated?: boolean
-  enabled?: boolean
+  activated: boolean
+  enabled: boolean
 }
 
 export type KnowledgePipeline = {
-  publish_enabled?: boolean
+  publish_enabled: boolean
 }
 
 export type LicenseLimitationModel = {
-  enabled?: boolean
-  limit?: number
-  size?: number
+  enabled: boolean
+  limit: number
+  size: number
 }
 
 export type SubscriptionModel = {
-  interval?: string
-  plan?: string
+  interval: string
+  plan: string
 }
 
 export type GetFeaturesData = {
diff --git a/packages/contracts/generated/api/console/features/zod.gen.ts b/packages/contracts/generated/api/console/features/zod.gen.ts
index e0642404dc..9ace83a433 100644
--- a/packages/contracts/generated/api/console/features/zod.gen.ts
+++ b/packages/contracts/generated/api/console/features/zod.gen.ts
@@ -6,32 +6,32 @@ import * as z from 'zod'
  * LimitationModel
  */
 export const zLimitationModel = z.object({
-  limit: z.int().optional().default(0),
-  size: z.int().optional().default(0),
+  limit: z.int().default(0),
+  size: z.int().default(0),
 })
 
 /**
  * Quota
  */
 export const zQuota = z.object({
-  limit: z.int().optional().default(0),
-  reset_date: z.int().optional().default(-1),
-  usage: z.int().optional().default(0),
+  limit: z.int().default(0),
+  reset_date: z.int().default(-1),
+  usage: z.int().default(0),
 })
 
 /**
  * EducationModel
  */
 export const zEducationModel = z.object({
-  activated: z.boolean().optional().default(false),
-  enabled: z.boolean().optional().default(false),
+  activated: z.boolean().default(false),
+  enabled: z.boolean().default(false),
 })
 
 /**
  * KnowledgePipeline
  */
 export const zKnowledgePipeline = z.object({
-  publish_enabled: z.boolean().optional().default(false),
+  publish_enabled: z.boolean().default(false),
 })
 
 /**
@@ -42,51 +42,51 @@ export const zKnowledgePipeline = z.object({
  * - limit: maximum allowed count; 0 means unlimited
  */
 export const zLicenseLimitationModel = z.object({
-  enabled: z.boolean().optional().default(false),
-  limit: z.int().optional().default(0),
-  size: z.int().optional().default(0),
+  enabled: z.boolean().default(false),
+  limit: z.int().default(0),
+  size: z.int().default(0),
 })
 
 /**
  * SubscriptionModel
  */
 export const zSubscriptionModel = z.object({
-  interval: z.string().optional().default(''),
-  plan: z.string().optional().default('sandbox'),
+  interval: z.string().default(''),
+  plan: z.string().default('sandbox'),
 })
 
 /**
  * BillingModel
  */
 export const zBillingModel = z.object({
-  enabled: z.boolean().optional().default(false),
-  subscription: zSubscriptionModel.optional(),
+  enabled: z.boolean().default(false),
+  subscription: zSubscriptionModel,
 })
 
 /**
  * FeatureModel
  */
 export const zFeatureModel = z.object({
-  annotation_quota_limit: zLimitationModel.optional(),
-  api_rate_limit: zQuota.optional(),
-  apps: zLimitationModel.optional(),
-  billing: zBillingModel.optional(),
-  can_replace_logo: z.boolean().optional().default(false),
-  dataset_operator_enabled: z.boolean().optional().default(false),
-  docs_processing: z.string().optional().default('standard'),
-  documents_upload_quota: zLimitationModel.optional(),
-  education: zEducationModel.optional(),
-  human_input_email_delivery_enabled: z.boolean().optional().default(false),
-  is_allow_transfer_workspace: z.boolean().optional().default(true),
-  knowledge_pipeline: zKnowledgePipeline.optional(),
-  knowledge_rate_limit: z.int().optional().default(10),
-  members: zLimitationModel.optional(),
-  model_load_balancing_enabled: z.boolean().optional().default(false),
-  next_credit_reset_date: z.int().optional().default(0),
-  trigger_event: zQuota.optional(),
-  vector_space: zLimitationModel.optional(),
-  webapp_copyright_enabled: z.boolean().optional().default(false),
-  workspace_members: zLicenseLimitationModel.optional(),
+  annotation_quota_limit: zLimitationModel,
+  api_rate_limit: zQuota,
+  apps: zLimitationModel,
+  billing: zBillingModel,
+  can_replace_logo: z.boolean().default(false),
+  dataset_operator_enabled: z.boolean().default(false),
+  docs_processing: z.string().default('standard'),
+  documents_upload_quota: zLimitationModel,
+  education: zEducationModel,
+  human_input_email_delivery_enabled: z.boolean().default(false),
+  is_allow_transfer_workspace: z.boolean().default(true),
+  knowledge_pipeline: zKnowledgePipeline,
+  knowledge_rate_limit: z.int().default(10),
+  members: zLimitationModel,
+  model_load_balancing_enabled: z.boolean().default(false),
+  next_credit_reset_date: z.int().default(0),
+  trigger_event: zQuota,
+  vector_space: zLimitationModel,
+  webapp_copyright_enabled: z.boolean().default(false),
+  workspace_members: zLicenseLimitationModel,
 })
 
 /**
diff --git a/packages/contracts/generated/api/console/remote-files/types.gen.ts b/packages/contracts/generated/api/console/remote-files/types.gen.ts
index 40c59e80ee..4162f98f93 100644
--- a/packages/contracts/generated/api/console/remote-files/types.gen.ts
+++ b/packages/contracts/generated/api/console/remote-files/types.gen.ts
@@ -9,14 +9,14 @@ export type RemoteFileUploadPayload = {
 }
 
 export type FileWithSignedUrl = {
-  created_at?: number | null
-  created_by?: string | null
-  extension?: string | null
+  created_at: number | null
+  created_by: string | null
+  extension: string | null
   id: string
-  mime_type?: string | null
+  mime_type: string | null
   name: string
   size: number
-  url?: string | null
+  url: string | null
 }
 
 export type RemoteFileInfo = {
diff --git a/packages/contracts/generated/api/console/remote-files/zod.gen.ts b/packages/contracts/generated/api/console/remote-files/zod.gen.ts
index 0482b5e589..f389299059 100644
--- a/packages/contracts/generated/api/console/remote-files/zod.gen.ts
+++ b/packages/contracts/generated/api/console/remote-files/zod.gen.ts
@@ -13,14 +13,14 @@ export const zRemoteFileUploadPayload = z.object({
  * FileWithSignedUrl
  */
 export const zFileWithSignedUrl = z.object({
-  created_at: z.int().nullish(),
-  created_by: z.string().nullish(),
-  extension: z.string().nullish(),
+  created_at: z.int().nullable(),
+  created_by: z.string().nullable(),
+  extension: z.string().nullable(),
   id: z.string(),
-  mime_type: z.string().nullish(),
+  mime_type: z.string().nullable(),
   name: z.string(),
   size: z.int(),
-  url: z.string().nullish(),
+  url: z.string().nullable(),
 })
 
 /**
diff --git a/packages/contracts/generated/api/console/system-features/types.gen.ts b/packages/contracts/generated/api/console/system-features/types.gen.ts
index 931ef8d87c..3ef9c6e30e 100644
--- a/packages/contracts/generated/api/console/system-features/types.gen.ts
+++ b/packages/contracts/generated/api/console/system-features/types.gen.ts
@@ -5,67 +5,67 @@ export type ClientOptions = {
 }
 
 export type SystemFeatureModel = {
-  app_dsl_version?: string
-  branding?: BrandingModel
-  enable_change_email?: boolean
-  enable_collaboration_mode?: boolean
-  enable_creators_platform?: boolean
-  enable_email_code_login?: boolean
-  enable_email_password_login?: boolean
-  enable_explore_banner?: boolean
-  enable_marketplace?: boolean
-  enable_social_oauth_login?: boolean
-  enable_trial_app?: boolean
-  is_allow_create_workspace?: boolean
-  is_allow_register?: boolean
-  is_email_setup?: boolean
-  license?: LicenseModel
-  max_plugin_package_size?: number
-  plugin_installation_permission?: PluginInstallationPermissionModel
-  plugin_manager?: PluginManagerModel
-  sso_enforced_for_signin?: boolean
-  sso_enforced_for_signin_protocol?: string
-  trial_models?: Array<string>
-  webapp_auth?: WebAppAuthModel
+  app_dsl_version: string
+  branding: BrandingModel
+  enable_change_email: boolean
+  enable_collaboration_mode: boolean
+  enable_creators_platform: boolean
+  enable_email_code_login: boolean
+  enable_email_password_login: boolean
+  enable_explore_banner: boolean
+  enable_marketplace: boolean
+  enable_social_oauth_login: boolean
+  enable_trial_app: boolean
+  is_allow_create_workspace: boolean
+  is_allow_register: boolean
+  is_email_setup: boolean
+  license: LicenseModel
+  max_plugin_package_size: number
+  plugin_installation_permission: PluginInstallationPermissionModel
+  plugin_manager: PluginManagerModel
+  sso_enforced_for_signin: boolean
+  sso_enforced_for_signin_protocol: string
+  trial_models: Array<string>
+  webapp_auth: WebAppAuthModel
 }
 
 export type BrandingModel = {
-  application_title?: string
-  enabled?: boolean
-  favicon?: string
-  login_page_logo?: string
-  workspace_logo?: string
+  application_title: string
+  enabled: boolean
+  favicon: string
+  login_page_logo: string
+  workspace_logo: string
 }
 
 export type LicenseModel = {
-  expired_at?: string
-  status?: LicenseStatus
-  workspaces?: LicenseLimitationModel
+  expired_at: string
+  status: LicenseStatus
+  workspaces: LicenseLimitationModel
 }
 
 export type PluginInstallationPermissionModel = {
-  plugin_installation_scope?: PluginInstallationScope
-  restrict_to_marketplace_only?: boolean
+  plugin_installation_scope: PluginInstallationScope
+  restrict_to_marketplace_only: boolean
 }
 
 export type PluginManagerModel = {
-  enabled?: boolean
+  enabled: boolean
 }
 
 export type WebAppAuthModel = {
-  allow_email_code_login?: boolean
-  allow_email_password_login?: boolean
-  allow_sso?: boolean
-  enabled?: boolean
-  sso_config?: WebAppAuthSsoModel
+  allow_email_code_login: boolean
+  allow_email_password_login: boolean
+  allow_sso: boolean
+  enabled: boolean
+  sso_config: WebAppAuthSsoModel
 }
 
 export type LicenseStatus = 'active' | 'expired' | 'expiring' | 'inactive' | 'lost' | 'none'
 
 export type LicenseLimitationModel = {
-  enabled?: boolean
-  limit?: number
-  size?: number
+  enabled: boolean
+  limit: number
+  size: number
 }
 
 export type PluginInstallationScope
@@ -75,7 +75,7 @@ export type PluginInstallationScope
     | 'official_only'
 
 export type WebAppAuthSsoModel = {
-  protocol?: string
+  protocol: string
 }
 
 export type GetSystemFeaturesData = {
diff --git a/packages/contracts/generated/api/console/system-features/zod.gen.ts b/packages/contracts/generated/api/console/system-features/zod.gen.ts
index 34755e72cf..b3bba61c3f 100644
--- a/packages/contracts/generated/api/console/system-features/zod.gen.ts
+++ b/packages/contracts/generated/api/console/system-features/zod.gen.ts
@@ -6,18 +6,18 @@ import * as z from 'zod'
  * BrandingModel
  */
 export const zBrandingModel = z.object({
-  application_title: z.string().optional().default(''),
-  enabled: z.boolean().optional().default(false),
-  favicon: z.string().optional().default(''),
-  login_page_logo: z.string().optional().default(''),
-  workspace_logo: z.string().optional().default(''),
+  application_title: z.string().default(''),
+  enabled: z.boolean().default(false),
+  favicon: z.string().default(''),
+  login_page_logo: z.string().default(''),
+  workspace_logo: z.string().default(''),
 })
 
 /**
  * PluginManagerModel
  */
 export const zPluginManagerModel = z.object({
-  enabled: z.boolean().optional().default(false),
+  enabled: z.boolean().default(false),
 })
 
 /**
@@ -33,18 +33,18 @@ export const zLicenseStatus = z.enum(['active', 'expired', 'expiring', 'inactive
  * - limit: maximum allowed count; 0 means unlimited
  */
 export const zLicenseLimitationModel = z.object({
-  enabled: z.boolean().optional().default(false),
-  limit: z.int().optional().default(0),
-  size: z.int().optional().default(0),
+  enabled: z.boolean().default(false),
+  limit: z.int().default(0),
+  size: z.int().default(0),
 })
 
 /**
  * LicenseModel
  */
 export const zLicenseModel = z.object({
-  expired_at: z.string().optional().default(''),
-  status: zLicenseStatus.optional(),
-  workspaces: zLicenseLimitationModel.optional(),
+  expired_at: z.string().default(''),
+  status: zLicenseStatus,
+  workspaces: zLicenseLimitationModel,
 })
 
 /**
@@ -61,54 +61,54 @@ export const zPluginInstallationScope = z.enum([
  * PluginInstallationPermissionModel
  */
 export const zPluginInstallationPermissionModel = z.object({
-  plugin_installation_scope: zPluginInstallationScope.optional(),
-  restrict_to_marketplace_only: z.boolean().optional().default(false),
+  plugin_installation_scope: zPluginInstallationScope,
+  restrict_to_marketplace_only: z.boolean().default(false),
 })
 
 /**
  * WebAppAuthSSOModel
  */
 export const zWebAppAuthSsoModel = z.object({
-  protocol: z.string().optional().default(''),
+  protocol: z.string().default(''),
 })
 
 /**
  * WebAppAuthModel
  */
 export const zWebAppAuthModel = z.object({
-  allow_email_code_login: z.boolean().optional().default(false),
-  allow_email_password_login: z.boolean().optional().default(false),
-  allow_sso: z.boolean().optional().default(false),
-  enabled: z.boolean().optional().default(false),
-  sso_config: zWebAppAuthSsoModel.optional(),
+  allow_email_code_login: z.boolean().default(false),
+  allow_email_password_login: z.boolean().default(false),
+  allow_sso: z.boolean().default(false),
+  enabled: z.boolean().default(false),
+  sso_config: zWebAppAuthSsoModel,
 })
 
 /**
  * SystemFeatureModel
  */
 export const zSystemFeatureModel = z.object({
-  app_dsl_version: z.string().optional().default(''),
-  branding: zBrandingModel.optional(),
-  enable_change_email: z.boolean().optional().default(true),
-  enable_collaboration_mode: z.boolean().optional().default(true),
-  enable_creators_platform: z.boolean().optional().default(false),
-  enable_email_code_login: z.boolean().optional().default(false),
-  enable_email_password_login: z.boolean().optional().default(true),
-  enable_explore_banner: z.boolean().optional().default(false),
-  enable_marketplace: z.boolean().optional().default(false),
-  enable_social_oauth_login: z.boolean().optional().default(false),
-  enable_trial_app: z.boolean().optional().default(false),
-  is_allow_create_workspace: z.boolean().optional().default(false),
-  is_allow_register: z.boolean().optional().default(false),
-  is_email_setup: z.boolean().optional().default(false),
-  license: zLicenseModel.optional(),
-  max_plugin_package_size: z.int().optional().default(15728640),
-  plugin_installation_permission: zPluginInstallationPermissionModel.optional(),
-  plugin_manager: zPluginManagerModel.optional(),
-  sso_enforced_for_signin: z.boolean().optional().default(false),
-  sso_enforced_for_signin_protocol: z.string().optional().default(''),
-  trial_models: z.array(z.string()).optional().default([]),
-  webapp_auth: zWebAppAuthModel.optional(),
+  app_dsl_version: z.string().default(''),
+  branding: zBrandingModel,
+  enable_change_email: z.boolean().default(true),
+  enable_collaboration_mode: z.boolean().default(true),
+  enable_creators_platform: z.boolean().default(false),
+  enable_email_code_login: z.boolean().default(false),
+  enable_email_password_login: z.boolean().default(true),
+  enable_explore_banner: z.boolean().default(false),
+  enable_marketplace: z.boolean().default(false),
+  enable_social_oauth_login: z.boolean().default(false),
+  enable_trial_app: z.boolean().default(false),
+  is_allow_create_workspace: z.boolean().default(false),
+  is_allow_register: z.boolean().default(false),
+  is_email_setup: z.boolean().default(false),
+  license: zLicenseModel,
+  max_plugin_package_size: z.int().default(15728640),
+  plugin_installation_permission: zPluginInstallationPermissionModel,
+  plugin_manager: zPluginManagerModel,
+  sso_enforced_for_signin: z.boolean().default(false),
+  sso_enforced_for_signin_protocol: z.string().default(''),
+  trial_models: z.array(z.string()).default([]),
+  webapp_auth: zWebAppAuthModel,
 })
 
 /**
diff --git a/packages/contracts/generated/api/web/types.gen.ts b/packages/contracts/generated/api/web/types.gen.ts
index bef2e55b0a..b08f372208 100644
--- a/packages/contracts/generated/api/web/types.gen.ts
+++ b/packages/contracts/generated/api/web/types.gen.ts
@@ -27,11 +27,11 @@ export type BooleanResultResponse = {
 }
 
 export type BrandingModel = {
-  application_title?: string
-  enabled?: boolean
-  favicon?: string
-  login_page_logo?: string
-  workspace_logo?: string
+  application_title: string
+  enabled: boolean
+  favicon: string
+  login_page_logo: string
+  workspace_logo: string
 }
 
 export type ChatMessagePayload = {
@@ -101,14 +101,14 @@ export type FileResponse = {
 }
 
 export type FileWithSignedUrl = {
-  created_at?: number | null
-  created_by?: string | null
-  extension?: string | null
+  created_at: number | null
+  created_by: string | null
+  extension: string | null
   id: string
-  mime_type?: string | null
+  mime_type: string | null
   name: string
   size: number
-  url?: string | null
+  url: string | null
 }
 
 export type ForgotPasswordCheckPayload = {
@@ -129,15 +129,15 @@ export type ForgotPasswordSendPayload = {
 }
 
 export type LicenseLimitationModel = {
-  enabled?: boolean
-  limit?: number
-  size?: number
+  enabled: boolean
+  limit: number
+  size: number
 }
 
 export type LicenseModel = {
-  expired_at?: string
-  status?: LicenseStatus
-  workspaces?: LicenseLimitationModel
+  expired_at: string
+  status: LicenseStatus
+  workspaces: LicenseLimitationModel
 }
 
 export type LicenseStatus = 'active' | 'expired' | 'expiring' | 'inactive' | 'lost' | 'none'
@@ -168,8 +168,8 @@ export type MessageMoreLikeThisQuery = {
 }
 
 export type PluginInstallationPermissionModel = {
-  plugin_installation_scope?: PluginInstallationScope
-  restrict_to_marketplace_only?: boolean
+  plugin_installation_scope: PluginInstallationScope
+  restrict_to_marketplace_only: boolean
 }
 
 export type PluginInstallationScope
@@ -179,7 +179,7 @@ export type PluginInstallationScope
     | 'official_only'
 
 export type PluginManagerModel = {
-  enabled?: boolean
+  enabled: boolean
 }
 
 export type RemoteFileInfo = {
@@ -218,28 +218,28 @@ export type SuggestedQuestionsResponse = {
 }
 
 export type SystemFeatureModel = {
-  app_dsl_version?: string
-  branding?: BrandingModel
-  enable_change_email?: boolean
-  enable_collaboration_mode?: boolean
-  enable_creators_platform?: boolean
-  enable_email_code_login?: boolean
-  enable_email_password_login?: boolean
-  enable_explore_banner?: boolean
-  enable_marketplace?: boolean
-  enable_social_oauth_login?: boolean
-  enable_trial_app?: boolean
-  is_allow_create_workspace?: boolean
-  is_allow_register?: boolean
-  is_email_setup?: boolean
-  license?: LicenseModel
-  max_plugin_package_size?: number
-  plugin_installation_permission?: PluginInstallationPermissionModel
-  plugin_manager?: PluginManagerModel
-  sso_enforced_for_signin?: boolean
-  sso_enforced_for_signin_protocol?: string
-  trial_models?: Array<string>
-  webapp_auth?: WebAppAuthModel
+  app_dsl_version: string
+  branding: BrandingModel
+  enable_change_email: boolean
+  enable_collaboration_mode: boolean
+  enable_creators_platform: boolean
+  enable_email_code_login: boolean
+  enable_email_password_login: boolean
+  enable_explore_banner: boolean
+  enable_marketplace: boolean
+  enable_social_oauth_login: boolean
+  enable_trial_app: boolean
+  is_allow_create_workspace: boolean
+  is_allow_register: boolean
+  is_email_setup: boolean
+  license: LicenseModel
+  max_plugin_package_size: number
+  plugin_installation_permission: PluginInstallationPermissionModel
+  plugin_manager: PluginManagerModel
+  sso_enforced_for_signin: boolean
+  sso_enforced_for_signin_protocol: string
+  trial_models: Array<string>
+  webapp_auth: WebAppAuthModel
 }
 
 export type TextToAudioPayload = {
@@ -256,15 +256,15 @@ export type VerificationTokenResponse = {
 }
 
 export type WebAppAuthModel = {
-  allow_email_code_login?: boolean
-  allow_email_password_login?: boolean
-  allow_sso?: boolean
-  enabled?: boolean
-  sso_config?: WebAppAuthSsoModel
+  allow_email_code_login: boolean
+  allow_email_password_login: boolean
+  allow_sso: boolean
+  enabled: boolean
+  sso_config: WebAppAuthSsoModel
 }
 
 export type WebAppAuthSsoModel = {
-  protocol?: string
+  protocol: string
 }
 
 export type WorkflowRunPayload = {
diff --git a/packages/contracts/generated/api/web/zod.gen.ts b/packages/contracts/generated/api/web/zod.gen.ts
index a407b8c8c7..d1e8ab7600 100644
--- a/packages/contracts/generated/api/web/zod.gen.ts
+++ b/packages/contracts/generated/api/web/zod.gen.ts
@@ -43,11 +43,11 @@ export const zBooleanResultResponse = z.object({
  * BrandingModel
  */
 export const zBrandingModel = z.object({
-  application_title: z.string().optional().default(''),
-  enabled: z.boolean().optional().default(false),
-  favicon: z.string().optional().default(''),
-  login_page_logo: z.string().optional().default(''),
-  workspace_logo: z.string().optional().default(''),
+  application_title: z.string().default(''),
+  enabled: z.boolean().default(false),
+  favicon: z.string().default(''),
+  login_page_logo: z.string().default(''),
+  workspace_logo: z.string().default(''),
 })
 
 /**
@@ -136,14 +136,14 @@ export const zFileResponse = z.object({
  * FileWithSignedUrl
  */
 export const zFileWithSignedUrl = z.object({
-  created_at: z.int().nullish(),
-  created_by: z.string().nullish(),
-  extension: z.string().nullish(),
+  created_at: z.int().nullable(),
+  created_by: z.string().nullable(),
+  extension: z.string().nullable(),
   id: z.string(),
-  mime_type: z.string().nullish(),
+  mime_type: z.string().nullable(),
   name: z.string(),
   size: z.int(),
-  url: z.string().nullish(),
+  url: z.string().nullable(),
 })
 
 /**
@@ -180,9 +180,9 @@ export const zForgotPasswordSendPayload = z.object({
  * - limit: maximum allowed count; 0 means unlimited
  */
 export const zLicenseLimitationModel = z.object({
-  enabled: z.boolean().optional().default(false),
-  limit: z.int().optional().default(0),
-  size: z.int().optional().default(0),
+  enabled: z.boolean().default(false),
+  limit: z.int().default(0),
+  size: z.int().default(0),
 })
 
 /**
@@ -194,9 +194,9 @@ export const zLicenseStatus = z.enum(['active', 'expired', 'expiring', 'inactive
  * LicenseModel
  */
 export const zLicenseModel = z.object({
-  expired_at: z.string().optional().default(''),
-  status: zLicenseStatus.optional(),
-  workspaces: zLicenseLimitationModel.optional(),
+  expired_at: z.string().default(''),
+  status: zLicenseStatus,
+  workspaces: zLicenseLimitationModel,
 })
 
 /**
@@ -253,15 +253,15 @@ export const zPluginInstallationScope = z.enum([
  * PluginInstallationPermissionModel
  */
 export const zPluginInstallationPermissionModel = z.object({
-  plugin_installation_scope: zPluginInstallationScope.optional(),
-  restrict_to_marketplace_only: z.boolean().optional().default(false),
+  plugin_installation_scope: zPluginInstallationScope,
+  restrict_to_marketplace_only: z.boolean().default(false),
 })
 
 /**
  * PluginManagerModel
  */
 export const zPluginManagerModel = z.object({
-  enabled: z.boolean().optional().default(false),
+  enabled: z.boolean().default(false),
 })
 
 /**
@@ -346,46 +346,46 @@ export const zVerificationTokenResponse = z.object({
  * WebAppAuthSSOModel
  */
 export const zWebAppAuthSsoModel = z.object({
-  protocol: z.string().optional().default(''),
+  protocol: z.string().default(''),
 })
 
 /**
  * WebAppAuthModel
  */
 export const zWebAppAuthModel = z.object({
-  allow_email_code_login: z.boolean().optional().default(false),
-  allow_email_password_login: z.boolean().optional().default(false),
-  allow_sso: z.boolean().optional().default(false),
-  enabled: z.boolean().optional().default(false),
-  sso_config: zWebAppAuthSsoModel.optional(),
+  allow_email_code_login: z.boolean().default(false),
+  allow_email_password_login: z.boolean().default(false),
+  allow_sso: z.boolean().default(false),
+  enabled: z.boolean().default(false),
+  sso_config: zWebAppAuthSsoModel,
 })
 
 /**
  * SystemFeatureModel
  */
 export const zSystemFeatureModel = z.object({
-  app_dsl_version: z.string().optional().default(''),
-  branding: zBrandingModel.optional(),
-  enable_change_email: z.boolean().optional().default(true),
-  enable_collaboration_mode: z.boolean().optional().default(true),
-  enable_creators_platform: z.boolean().optional().default(false),
-  enable_email_code_login: z.boolean().optional().default(false),
-  enable_email_password_login: z.boolean().optional().default(true),
-  enable_explore_banner: z.boolean().optional().default(false),
-  enable_marketplace: z.boolean().optional().default(false),
-  enable_social_oauth_login: z.boolean().optional().default(false),
-  enable_trial_app: z.boolean().optional().default(false),
-  is_allow_create_workspace: z.boolean().optional().default(false),
-  is_allow_register: z.boolean().optional().default(false),
-  is_email_setup: z.boolean().optional().default(false),
-  license: zLicenseModel.optional(),
-  max_plugin_package_size: z.int().optional().default(15728640),
-  plugin_installation_permission: zPluginInstallationPermissionModel.optional(),
-  plugin_manager: zPluginManagerModel.optional(),
-  sso_enforced_for_signin: z.boolean().optional().default(false),
-  sso_enforced_for_signin_protocol: z.string().optional().default(''),
-  trial_models: z.array(z.string()).optional().default([]),
-  webapp_auth: zWebAppAuthModel.optional(),
+  app_dsl_version: z.string().default(''),
+  branding: zBrandingModel,
+  enable_change_email: z.boolean().default(true),
+  enable_collaboration_mode: z.boolean().default(true),
+  enable_creators_platform: z.boolean().default(false),
+  enable_email_code_login: z.boolean().default(false),
+  enable_email_password_login: z.boolean().default(true),
+  enable_explore_banner: z.boolean().default(false),
+  enable_marketplace: z.boolean().default(false),
+  enable_social_oauth_login: z.boolean().default(false),
+  enable_trial_app: z.boolean().default(false),
+  is_allow_create_workspace: z.boolean().default(false),
+  is_allow_register: z.boolean().default(false),
+  is_email_setup: z.boolean().default(false),
+  license: zLicenseModel,
+  max_plugin_package_size: z.int().default(15728640),
+  plugin_installation_permission: zPluginInstallationPermissionModel,
+  plugin_manager: zPluginManagerModel,
+  sso_enforced_for_signin: z.boolean().default(false),
+  sso_enforced_for_signin_protocol: z.string().default(''),
+  trial_models: z.array(z.string()).default([]),
+  webapp_auth: zWebAppAuthModel,
 })
 
 /**