fix: Apply formatting to coordinator after rebase

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: jopemachine

src/ai/backend/manager/sokovan/deployment/coordinator.py

@@ -150,7 +150,6 @@ class HandlerRegistry:
 
     handlers: dict[HandlerKey, DeploymentHandler]
 
-
     def resolve_sub_step(
         self, lifecycle_type: DeploymentLifecycleType, raw: str
     ) -> DeploymentLifecycleSubStep:
@@ -160,6 +159,7 @@ def resolve_sub_step(
                 return sub_step
         raise ValueError(f"Unknown sub-step {raw!r} for lifecycle type {lifecycle_type!r}")
 
+
 @dataclass
 class DeploymentTaskSpec:
     """Specification for a deployment lifecycle periodic task."""