v1.3.0 - Smart Collection Resilience

Added

• Smart Collections: Automatic sidecar backup (smart_collections.json) on
  every create/update/delete. Auto-recovery on startup when the database is
  empty, so Smart Collections survive installation or device changes.
• Curators: Auto-register existing curators from Steam collections when
  opening the management dialog. Fuzzy name matching strips emojis, punctuation,
  and whitespace for reliable preset detection.
• Curators: Cloud storage parser as additional source for collection names,
  catching dynamic/filter-based collections that game_manager does not see.

Fixed

• Collections: Steam-internal names "favorite" and "hidden" (lowercase
  English) are now recognized as protected system collections and sort
  correctly instead of appearing alphabetically in the sidebar.
• Smart Collections: Brain emoji now appears as suffix (after name, before
  count) consistent with dynamic and external platform collection emojis.
• Smart Collections: Name validation in SmartCollectionManager.create()
  prevents saving collections without a name.
• Curators: Popular/Top Curators dialogs now have scroll areas and a
  max height so they don't fill the entire screen on smaller displays.