**Implementation Plan**

**Scope:** Resolve the intermittent unresponsiveness of vote/star buttons on dynamically inserted content (comments, infinite scroll cards) by adopting document-level event delegation in `VoteManager.js`, consistent with existing patterns in `ReactionBar.js` and `BookmarkManager.js`. Additionally, improve UX for the session-expiry cause by adding a `title` attribute to disabled vote buttons.

---

### Changes

**1. `devplacepy/static/js/VoteManager.js` – Replace one-shot attachment with delegation**

- Locate the `initVoteButtons()` method (currently uses `querySelectorAll` + per-element listeners).
- Remove the per-element loop.
- Add a constructor that registers one delegated `click` listener on `document`:
  ```js
  constructor() {
      super();
      document.addEventListener("click", (event) => {
          const button = event.target.closest('form[action^="/votes/"] button[type="submit"]');
          if (!button) return;
          const form = button.closest("form");
          if (!form) return;
          event.preventDefault();
          event.stopPropagation();
          this.cast(form, button);
      });
  }
  ```
- Remove the `initVoteButtons()` method entirely (or leave a no-op stub with a comment marking it deprecated).
- Ensure `window.VoteManager` instantiation (or wherever `initVoteButtons()` is called) does not break; the constructor performs delegation automatically.

**2. `devplacepy/static/js/_star_vote.html` and `devplacepy/templating.py` – Add `title` attribute to disabled vote buttons**

- In the template helper function `guest_disabled(user)`, include a `title="Log in to vote"` attribute when `disabled` is True.
- Alternatively, if the helper returns only the `disabled` attribute, update each template that uses it to add a `title` conditionally. Simpler: add the `title` inside `templating.py`’s `guest_disabled()` output:
  ```python
  def guest_disabled(user):
      if not user:
          return 'disabled title="Log in to vote"'
      return ''
  ```
- Verify that no existing CSS or JS relies on the absence of `title`; this is a purely additive, non-breaking change.

**3. No other files require modification** – the CSS stacking context, `CommentManager.js`, and `PollManager.js` are already correct.

---

### Definition of Done

- [ ] `VoteManager.js` is updated to use a single document-level delegated `click` listener per the pattern above; the old `initVoteButtons()` is removed.
- [ ] On initial page load, vote/star buttons behave identically to before (optimistic update, toggling, etc.).
- [ ] Dynamically inserted vote buttons (from AJAX comments, infinite scroll, or any future dynamic content) are now responsive and produce the same optimistic UX.
- [ ] All existing vote e2e tests (in `tests/e2e/gist.py` and `tests/e2e/leaderboard.py`) still pass without regression.
- [ ] The `guest_disabled()` helper (in `templating.py`) outputs `disabled title="Log in to vote"` for unauthenticated users, providing a tooltip explaining why the button is inactive.
- [ ] Unit tests pass: `pip install -e '.[dev]' -q && make test-unit` returns exit code 0.
- [ ] Linting passes: `pip install -q ruff && ruff check .` returns exit code 0.
- [ ] No new lint warnings or errors are introduced (ruff check clean).