fix(workspace-cleanup): warn before deleting a workspace's ignored local files like .env (#41446)

* fix(workspace-cleanup): warn before deleting a workspace's ignored local files

git worktree remove deletes ignored files such as .env and local config,
and git status never reports them, so cleanup showed "Clean git" and the
delete dialog said nothing. Read them with a bounded ls-files listing,
skip regenerable output, symlinks and byte-identical copies of the main
checkout, and surface the rest as an approval-only cleanup blocker and a
warning in the delete confirmation.

* fix(workspace-cleanup): show an unchecked warning when the ignored-files check fails

* style(workspace-cleanup): format merged fact status list

src/main/runtime/integrations/git/runtime-git-command-surface.ts

@@ -8,6 +8,7 @@ type RuntimeGitCommandName =
   | 'getRuntimeGitHistory'
   | 'getRuntimeGitConflictOperation'
   | 'getRuntimeGitMutationInFlight'
+  | 'readRuntimeWorktreeAtRiskLocalFiles'
   | 'abortRuntimeGitMerge'
   | 'abortRuntimeGitRebase'
   | 'switchRuntimeGitBranch'
@@ -61,6 +62,8 @@ export function installRuntimeGitCommandSurface(
     getRuntimeGitHistory: commands.getRuntimeGitHistory.bind(commands),
     getRuntimeGitConflictOperation: commands.getRuntimeGitConflictOperation.bind(commands),
     getRuntimeGitMutationInFlight: commands.getRuntimeGitMutationInFlight.bind(commands),
+    readRuntimeWorktreeAtRiskLocalFiles:
+      commands.readRuntimeWorktreeAtRiskLocalFiles.bind(commands),
     abortRuntimeGitMerge: commands.abortRuntimeGitMerge.bind(commands),
     abortRuntimeGitRebase: commands.abortRuntimeGitRebase.bind(commands),
     switchRuntimeGitBranch: commands.switchRuntimeGitBranch.bind(commands),