refactor(app): remove launcher tabs from workspace flow

packages/app/src/utils/workspace-tab-identity.ts

@@ -22,10 +22,6 @@ export function normalizeWorkspaceTabTarget(
     const path = trimNonEmpty(value.path);
     return path ? { kind: "file", path: path.replace(/\\/g, "/") } : null;
   }
-  if (value.kind === "launcher") {
-    const launcherId = trimNonEmpty(value.launcherId);
-    return launcherId ? { kind: "launcher", launcherId } : null;
-  }
   if (value.kind === "setup") {
     const workspaceId = trimNonEmpty(value.workspaceId);
     return workspaceId ? { kind: "setup", workspaceId: workspaceId.replace(/\\/g, "/") } : null;
@@ -52,10 +48,6 @@ export function workspaceTabTargetsEqual(
   if (left.kind === "file" && right.kind === "file") {
     return left.path === right.path;
   }
-  if (left.kind === "launcher" && right.kind === "launcher") {
-    // Launcher tabs are intentionally always unique, even when reopened repeatedly.
-    return false;
-  }
   if (left.kind === "setup" && right.kind === "setup") {
     return left.workspaceId === right.workspaceId;
   }
@@ -72,22 +64,12 @@ export function buildDeterministicWorkspaceTabId(target: WorkspaceTabTarget): st
   if (target.kind === "terminal") {
     return `terminal_${target.terminalId}`;
   }
-  if (target.kind === "launcher") {
-    return `launcher_${target.launcherId}`;
-  }
   if (target.kind === "setup") {
     return `setup_${target.workspaceId}`;
   }
   return `file_${target.path}`;
 }
 
-export function createLauncherId(): string {
-  if (typeof globalThis.crypto?.randomUUID === "function") {
-    return globalThis.crypto.randomUUID();
-  }
-  return `${Date.now()}-${Math.random().toString(16).slice(2)}`;
-}
-
 function trimNonEmpty(value: string | null | undefined): string | null {
   if (typeof value !== "string") {
     return null;