feat(task-021): add admin workflow template api

apps/backend/src/domain/contracts/openapi.py

@@ -22,6 +22,7 @@ from .enums import (
     ReviewType,
     Role,
     ScriptConfigVersionStatus,
+    WorkflowTemplateStatus,
 )
 from .models import (
     AgentJobOutput,
@@ -109,6 +110,19 @@ from .models import (
     TargetSiteConfigCreateRequest,
     TargetSiteConfigResponse,
     WorkflowEventSummary,
+    WorkflowStageCreateRequest,
+    WorkflowStagePart,
+    WorkflowStageReorderRequest,
+    WorkflowStageResponse,
+    WorkflowStageSummary,
+    WorkflowStageUpdateRequest,
+    WorkflowTemplateAuditEventListResponse,
+    WorkflowTemplateAuditEventSummary,
+    WorkflowTemplateCreateRequest,
+    WorkflowTemplateListResponse,
+    WorkflowTemplateResponse,
+    WorkflowTemplateSummary,
+    WorkflowTemplateUpdateRequest,
     TargetSiteConfigUpdateRequest,
     UserSummary,
 )
@@ -131,6 +145,7 @@ CONTRACT_ENUMS: tuple[type[Enum], ...] = (
     ReviewType,
     ContentReviewKind,
     ScriptConfigVersionStatus,
+    WorkflowTemplateStatus,
 )
 
 CONTRACT_SCHEMA_MODELS: tuple[type[BaseModel], ...] = (
@@ -148,6 +163,19 @@ CONTRACT_SCHEMA_MODELS: tuple[type[BaseModel], ...] = (
     ScriptConfigVersionListResponse,
     ScriptConfigVersionAuditEventSummary,
     ScriptConfigVersionAuditEventListResponse,
+    WorkflowStagePart,
+    WorkflowStageSummary,
+    WorkflowTemplateSummary,
+    WorkflowTemplateCreateRequest,
+    WorkflowTemplateUpdateRequest,
+    WorkflowStageCreateRequest,
+    WorkflowStageUpdateRequest,
+    WorkflowStageReorderRequest,
+    WorkflowTemplateResponse,
+    WorkflowTemplateListResponse,
+    WorkflowStageResponse,
+    WorkflowTemplateAuditEventSummary,
+    WorkflowTemplateAuditEventListResponse,
     ArticleCreateRequest,
     ArticleSummary,
     ArticleCreateResponse,