refactor(notes): decompose Notes into feature-owned modules (#6713)

* refactor(notes): decompose Notes into feature-owned modules

* fix(notes): avoid HTML interpolation in reminder picker

* docs(notes): drop checkpoint archives, session logs and publication drafts

The N0-N6 tarballs and raw pytest/node logs are not read by any script or
test, and the logs carry absolute home-directory paths. Once squashed into
dev they would stay in history for good. notes-pr.md and notes-issue.md
were the drafts used to open #6712 and #6713, not documentation.

notes-validation.md keeps the counts, the checkpoint hashes and
implementation.sha256 as the record; local interpreter paths and the local
Docker image name are replaced with portable placeholders.

* fix(notes): keep the state store raw and stop masonry re-observing after close

- state: writes built from views (filter, spread, splice) stored nested
  read-only views in the store, so structuredClone on a stored note threw
  DataCloneError. Store writes now unwrap nested views.
- layout: a save that resolves after closePanel re-renders the leaving pane
  and re-created the masonry ResizeObserver that teardown had disposed.
  Skip creating it once Notes is closed.
- index.js: drop 30 imported or declared names that were never used and
  group the imports at the top. Import order is unchanged.
- Revert unrelated punctuation edits in .gitattributes and keep the header
  comment and docstring first in compare/vote.js and
  test_notes_dom_xss_helpers.py.

Both fixes have a node test that fails on the previous head.

* test(notes): make script rejection assertion case-insensitive

Address CodeQL js/bad-tag-filter alert #1150 in test-only assertion and refresh Notes evidence manifest checksum.

---------

Co-authored-by: Léo <leograndcontact@gmail.com>

static/js/features/notes/infrastructure/storage.js

@@ -0,0 +1,63 @@
+/** Browser persistence and unchanged Notes key/serialization contracts. */
+export const REMINDER_FIRED_KEY = 'odysseus-notes-reminder-fired';
+export const REMINDER_GLOWED_KEY = 'odysseus-notes-reminder-glowed';
+export const REMINDER_PENDING_HIGHLIGHT_KEY = 'odysseus-notes-reminder-pending-highlight';
+export const REMINDER_ACTIVE_HIGHLIGHT_KEY = 'odysseus-notes-reminder-active-highlight';
+export const REMINDER_DISMISSED_AT_KEY = 'odysseus-notes-reminder-dismissed-at';
+export const NOTES_FIRST_OPEN_HINT_KEY = 'odysseus-notes-first-open-hint-v1';
+export const NOTES_LABELS_COLLAPSED_KEY = 'odysseus-notes-labels-collapsed';
+export const _DRAFT_PREFIX = 'odysseus-note-draft-';
+
+export function createNotesPersistence({ storage: localStorage }) {
+function _loadPendingHighlights() {
+  try { return new Set(JSON.parse(localStorage.getItem(REMINDER_PENDING_HIGHLIGHT_KEY) || '[]')); }
+  catch { return new Set(); }
+}
+
+function _loadGlowedReminders() {
+  try { return new Set(JSON.parse(localStorage.getItem(REMINDER_GLOWED_KEY) || '[]')); }
+  catch { return new Set(); }
+}
+
+function _saveGlowedReminders(set) {
+  try { localStorage.setItem(REMINDER_GLOWED_KEY, JSON.stringify([...set])); } catch {}
+}
+
+function _loadActiveHighlights() {
+  try { return new Set(JSON.parse(localStorage.getItem(REMINDER_ACTIVE_HIGHLIGHT_KEY) || '[]')); }
+  catch { return new Set(); }
+}
+
+function _saveActiveHighlights(set) {
+  try { localStorage.setItem(REMINDER_ACTIVE_HIGHLIGHT_KEY, JSON.stringify([...set])); } catch {}
+}
+
+function _savePendingHighlights(set) {
+  try { localStorage.setItem(REMINDER_PENDING_HIGHLIGHT_KEY, JSON.stringify([...set])); }
+  catch {}
+}
+
+function _loadFiredReminders() {
+  try { return new Set(JSON.parse(localStorage.getItem(REMINDER_FIRED_KEY) || '[]')); }
+  catch { return new Set(); }
+}
+
+function _saveFiredReminders(set) {
+  try { localStorage.setItem(REMINDER_FIRED_KEY, JSON.stringify([...set])); }
+  catch {}
+}
+
+function _draftKey(id) { return _DRAFT_PREFIX + (id || '__new__'); }
+
+function _loadDraft(id) {
+  try { return JSON.parse(localStorage.getItem(_draftKey(id)) || 'null'); } catch { return null; }
+}
+
+function _clearDraft(id) { try { localStorage.removeItem(_draftKey(id)); } catch {} }
+
+return { _loadPendingHighlights, _loadGlowedReminders, _saveGlowedReminders, _loadActiveHighlights, _saveActiveHighlights, _savePendingHighlights, _loadFiredReminders, _saveFiredReminders, _draftKey, _loadDraft, _clearDraft,
+  getItem: key => localStorage.getItem(key),
+  setItem: (key, value) => localStorage.setItem(key, value),
+  removeItem: key => localStorage.removeItem(key),
+};
+}