Add Migration schema

schemas/migration.py

@@ -0,0 +1,38 @@
+from pydantic import BaseModel, Field
+from typing import Optional
+from datetime import datetime
+
+class MigrationBase(BaseModel):
+    version: str = Field(..., description="Migration version identifier", index=True)
+    description: Optional[str] = Field(None, description="Migration description")
+    applied: bool = Field(False, description="Whether the migration has been applied")
+    script_path: str = Field(..., description="Path to the migration script file")
+    checksum: Optional[str] = Field(None, description="Migration file checksum")
+    execution_time: Optional[datetime] = Field(None, description="When the migration was executed")
+
+class MigrationCreate(MigrationBase):
+    class Config:
+        schema_extra = {
+            "example": {
+                "version": "v1.0.0",
+                "description": "Initial schema migration",
+                "applied": False,
+                "script_path": "/migrations/v1_0_0_initial.sql",
+                "checksum": "a1b2c3d4e5f6",
+                "execution_time": "2023-01-01T00:00:00"
+            }
+        }
+
+class Migration(MigrationBase):
+    class Config:
+        orm_mode = True
+        schema_extra = {
+            "example": {
+                "version": "v1.0.0",
+                "description": "Initial schema migration",
+                "applied": True,
+                "script_path": "/migrations/v1_0_0_initial.sql",
+                "checksum": "a1b2c3d4e5f6",
+                "execution_time": "2023-01-01T00:00:00"
+            }
+        }