Implement FastAPI Temporal MVP pipeline

app/api/schemas/review.py

@@ -0,0 +1,36 @@
+"""Review API schemas."""
+
+from datetime import datetime
+
+from pydantic import BaseModel
+
+from app.domain.enums import ReviewDecision, WorkflowStepName
+
+
+class SubmitReviewRequest(BaseModel):
+    """Request payload for review submission."""
+
+    decision: ReviewDecision
+    reviewer_id: int
+    selected_asset_id: int | None = None
+    comment: str | None = None
+
+
+class SubmitReviewResponse(BaseModel):
+    """Response returned after a review signal is sent."""
+
+    order_id: int
+    workflow_id: str
+    decision: ReviewDecision
+    status: str
+
+
+class PendingReviewResponse(BaseModel):
+    """Response model for pending review items."""
+
+    review_task_id: int
+    order_id: int
+    workflow_id: str
+    current_step: WorkflowStepName | None
+    created_at: datetime
+