feat(plugin): approve EnterWorktree into wt-managed worktrees; cd before cross-repo entry

docs/src/content/docs/claude-code.md

@@ -144,6 +144,8 @@ Claude Code agents can run in isolated worktrees (`isolation: "worktree"`). By d
 
 `/wt-switch-create [<branch>] [<repo>] [-- <task>]` starts a task in a fresh worktree without leaving the session: it creates the worktree, switches into it, and runs the task (all arguments optional). The worktree shows up in `wt list`; merge or remove it with `wt merge` / `wt remove`.
 
+Claude Code asks for confirmation before a session enters an existing worktree by path outside `.claude/worktrees/`, which in worktrunk's default layout is every worktree. The plugin's `PermissionRequest` hook answers yes for a worktree of the repository the session is working in that sits where `worktree-path` puts its branch, so a background session doesn't stop at that prompt. Entering any other worktree still asks.
+
 ## Statusline (Claude Code only)
 
 `wt list statusline --format=claude-code` outputs a single-line status for the Claude Code statusline. Claude Code runs it in the background, which is what makes the occasional 1–2 second CI fetch invisible.

plugins/worktrunk/CLAUDE.md

@@ -136,6 +136,8 @@ The Claude hooks track activity via git config (`worktrunk.state.{branch}.marker
 - `Notification`, `PreToolUse`(`AskUserQuestion`), `PermissionRequest`, `Stop` → 💬 (waiting for input)
 - `SessionEnd` → clears status
 
+An `EnterWorktree` that `wt config plugins claude approve-enter-worktree` approves shows no dialog, so it leaves the marker alone; the approval and the marker share one `PermissionRequest` command because Claude Code runs matching hooks in parallel (skills/wt-switch-create/rationale.md, "The confirmation hook").
+
 The 💬 transitions overlap deliberately: `Notification` covers the documented permission/idle path, but on platforms where it doesn't fire (VS Code extension, Windows CLI) `PermissionRequest` and `Stop` still mark the wait; `PreToolUse`(`AskUserQuestion`) catches the built-in question picker, which fires no `Notification` on any platform ([claude-code#13024](https://github.com/anthropics/claude-code/issues/13024)). There is currently no transition back to 🤖 once a turn-end/permission marker is set except a fresh `UserPromptSubmit`, so 💬 can persist into resumed work after a permission grant (the original symptom in [#2916](https://github.com/max-sixty/worktrunk/issues/2916)).
 
 **Problem**: If the user interrupts Claude Code (Escape/Ctrl+C), the 🤖 status persists because there's no `UserInterrupt` hook. The `Stop` hook explicitly does not fire on user interrupt.

plugins/worktrunk/hooks/hooks.json

@@ -38,7 +38,7 @@
         "hooks": [
           {
             "type": "command",
-            "command": "bash \"$CLAUDE_PLUGIN_ROOT/hooks/wt.sh\" -C \"$CLAUDE_PROJECT_DIR\" config state marker set 💬 || true"
+            "command": "bash \"$CLAUDE_PLUGIN_ROOT/hooks/wt.sh\" config plugins claude approve-enter-worktree || bash \"$CLAUDE_PLUGIN_ROOT/hooks/wt.sh\" -C \"$CLAUDE_PROJECT_DIR\" config state marker set 💬 || true"
           }
         ]
       }