preferences added

PROJECT.md

@@ -74,6 +74,14 @@ Research URLs:
   item editor, property editor, notes, category chooser, help, and status messages.
 - [x] Marking and bulk completion; Trash view, soft discard, and recovery.
 - [x] Responsive wide/compact rendering and mouse row/command/view interaction.
+- [x] Application Preferences persisted as typed TOML at
+  `~/.config/rogue-agenda/preferences.toml`: theme, command bar, rule/return/item
+  markers, autosave, confirmations, date/time display, and number separators.
+- [x] Transactional per-document settings embedded in `.agnd`: description,
+  backup-on-open, Trash and completed-item policies, automatic filing, numeric
+  date order, week boundary, natural-language named times, and note tab width.
+- [x] Consistent manual/startup `.agnd.bak` backups, timed WAL checkpoints,
+  configurable Trash maintenance, and confirmations for permanent operations.
 - [x] Text and iCalendar import; view-scoped CSV, JSON, Markdown, styled HTML,
   and iCalendar export with notes, categories, dates, priority, completion, and
   recurring `RRULE` schedules.
@@ -89,8 +97,9 @@ Research URLs:
   omitted by design, while deterministic filing actions are supported.
 - [x] Printing: view-aware Markdown and styled HTML reports are the portable
   print/preview path, alongside CSV and JSON data exports.
-- [x] Backups: SQLite durability plus explicit checkpoint replaces proprietary
-  backup-file rotation. Ordinary filesystem backup tools work on `.agnd` files.
+- [x] Backups: SQLite durability is supplemented by explicit/manual and
+  backup-on-open `.agnd.bak` snapshots after a full WAL checkpoint. Ordinary
+  filesystem backup tools also work on `.agnd` files.
 - [x] Clipboard/accessory capture: terminal paste into the new-item form replaces
   the DOS resident accessory.
 - [x] Macros: conventional keys and direct commands replace keystroke-replay macros.