Add durable workflow triggers and waits

src/govoplan_workflow_engine/backend/schemas.py

@@ -501,6 +501,26 @@ class WorkflowDefinitionDeleteResponse(BaseModel):
     definition_id: str
 
 
+class WorkflowTriggerResponse(BaseModel):
+    id: str
+    definition_id: str
+    definition_revision_id: str
+    node_id: str
+    kind: Literal["schedule", "event"]
+    status: str
+    event_type: str | None = None
+    next_fire_at: datetime | None = None
+    last_fire_at: datetime | None = None
+    last_status: str | None = None
+    last_error: str | None = None
+    authorization_subject_kind: Literal["delegated_user", "service_account"]
+    grant_scopes: list[str] = Field(default_factory=list)
+
+
+class WorkflowTriggerListResponse(BaseModel):
+    triggers: list[WorkflowTriggerResponse]
+
+
 WorkflowInstanceStatus = Literal[
     "running",
     "waiting",