feat: add repository rename orchestration CLI

Assistant: codex
Assistant-Model: gpt-5.6-sol
Assistant-Session: 01a049a4-ee9f-78e1-9d66-2cb0f9bea3e3

api/services/repository_rename.py

@@ -695,7 +695,22 @@ async def create_operation(
     gateway: ForgeRepositoryGateway,
     repo_id: uuid.UUID,
     body: RepositoryRenameOperationCreate,
-) -> RepositoryRenameOperation:
+) -> tuple[RepositoryRenameOperation, bool]:
+    if body.operation_id is not None:
+        existing = await session.get(RepositoryRenameOperation, body.operation_id)
+        if existing is not None:
+            if (
+                existing.repo_id != repo_id
+                or existing.new_slug != body.new_slug
+                or existing.actor != body.actor
+                or body.confirmation
+                != confirmation_for(repo_id, existing.old_slug, existing.new_slug)
+            ):
+                raise RenamePreconditionFailed(
+                    "Repository rename operation ID is already bound to another request"
+                )
+            return existing, True
+
     token = _verify_preflight_token(body.preflight_token)
     if token.get("repo_id") != str(repo_id) or token.get("new_slug") != body.new_slug:
         raise RenamePreconditionFailed("Preflight token does not address this rename")
@@ -730,6 +745,7 @@ async def create_operation(
     forge = preflight["current"]["forge"]
     now = utcnow()
     operation = RepositoryRenameOperation(
+        id=body.operation_id or uuid.uuid4(),
         repo_id=repo.id,
         forge_identity_id=identity.id,
         forge_identity_state="verified",
@@ -777,10 +793,33 @@ async def create_operation(
         await session.commit()
     except IntegrityError as exc:
         await session.rollback()
+        if body.operation_id is not None:
+            existing = await session.get(RepositoryRenameOperation, body.operation_id)
+            if (
+                existing is not None
+                and existing.repo_id == repo_id
+                and existing.new_slug == body.new_slug
+                and existing.actor == body.actor
+                and body.confirmation
+                == confirmation_for(repo_id, existing.old_slug, existing.new_slug)
+            ):
+                return existing, True
         raise RenamePreconditionFailed(
             "A conflicting repository rename operation was created"
         ) from exc
     await session.refresh(operation)
+    return operation, False
+
+
+async def load_operation_by_id(
+    session: AsyncSession,
+    operation_id: uuid.UUID,
+) -> RepositoryRenameOperation:
+    operation = await session.get(RepositoryRenameOperation, operation_id)
+    if operation is None:
+        raise RenameNotFound(
+            f"Repository rename operation {operation_id} was not found"
+        )
     return operation