style(subagent): format session-store with oxfmt

Author: bwachman

src/subagent/session-store.ts

@@ -193,7 +193,7 @@ export interface SubAgentSessionStore {
     report: string,
     opts?: { agentRetained?: boolean; stopReason?: ForcedStopReason },
   ): void;
-fail(id: string, error: string, failure?: SubAgentFailureInput): void;
+  fail(id: string, error: string, failure?: SubAgentFailureInput): void;
   // Register the live abort handle for a running session so cancel() can stop
   // the child reactor (agent.close), not only flip status.
   registerCancel(id: string, abort: () => void): void;
@@ -723,7 +723,7 @@ export function createSubAgentSessionStore(
     cancelDescendantAsks(id, reason);
   };
 
-const FORCED_STOP_REASONS: ReadonlySet<string> = new Set<ForcedStopReason>([
+  const FORCED_STOP_REASONS: ReadonlySet<string> = new Set<ForcedStopReason>([
     "cancelled",
     "deadline",
     "stalled",