AI Analysis and Content Strategy fixes. Enhanced Strategy Routes refactoring.

backend/api/subscription/models.py

@@ -0,0 +1,20 @@
+"""
+Pydantic models for subscription API requests/responses.
+"""
+
+from pydantic import BaseModel
+from typing import Optional, List
+
+
+class PreflightOperationRequest(BaseModel):
+    """Request model for pre-flight check operation."""
+    provider: str
+    model: Optional[str] = None
+    tokens_requested: Optional[int] = 0
+    operation_type: str
+    actual_provider_name: Optional[str] = None
+
+
+class PreflightCheckRequest(BaseModel):
+    """Request model for pre-flight check."""
+    operations: List[PreflightOperationRequest]