refactor(interactive-bash): reuse tmux parser

Route interactive bash tracking through the existing tmux parser so session name narrowing is shared and type-safe.

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/hooks/interactive-bash-session/state-manager.ts

@@ -2,21 +2,25 @@ import type { InteractiveBashSessionState } from "./types";
 import { loadInteractiveBashSessionState } from "./storage";
 import { OMO_SESSION_PREFIX } from "./constants";
 import { spawnWithWindowsHide } from "../../shared/spawn-with-windows-hide";
+import { log } from "../../shared/logger";
 
 export function getOrCreateState(sessionID: string, sessionStates: Map<string, InteractiveBashSessionState>): InteractiveBashSessionState {
-  if (!sessionStates.has(sessionID)) {
-    const persisted = loadInteractiveBashSessionState(sessionID);
-    const state: InteractiveBashSessionState = persisted ?? {
-      sessionID,
-      tmuxSessions: new Set<string>(),
-      updatedAt: Date.now(),
-    };
-    sessionStates.set(sessionID, state);
+  const existing = sessionStates.get(sessionID);
+  if (existing) {
+    return existing;
   }
-  return sessionStates.get(sessionID)!;
+
+  const persisted = loadInteractiveBashSessionState(sessionID);
+  const state: InteractiveBashSessionState = persisted ?? {
+    sessionID,
+    tmuxSessions: new Set<string>(),
+    updatedAt: Date.now(),
+  };
+  sessionStates.set(sessionID, state);
+  return state;
 }
 
-export function isOmoSession(sessionName: string | null): boolean {
+export function isOmoSession(sessionName: string | null): sessionName is string {
   return sessionName !== null && sessionName.startsWith(OMO_SESSION_PREFIX);
 }
 
@@ -30,6 +34,11 @@ export async function killAllTrackedSessions(
         stderr: "ignore",
       });
       await proc.exited;
-    } catch {}
+    } catch (error) {
+      log("[interactive-bash-session] failed to kill tracked tmux session", {
+        error: error instanceof Error ? error.message : String(error),
+        sessionName,
+      });
+    }
   }
 }