feat(imports): resume persisted address runs

src/govoplan_addresses/backend/import_schemas.py

@@ -151,6 +151,7 @@ class AddressImportCommitRequest(BaseModel):
 
 
 class AddressImportRollbackRequest(BaseModel):
+    expected_plan_hash: str = Field(min_length=64, max_length=64)
     reason: str = Field(min_length=3, max_length=2000)