Library of smart objects

i want a decent UX for a library of SO files in D_Library.svelte

Remaining work

• library -- save to local storage, export to fs

Done

• 2 new buttons below list (adding to import, reinstall)
  • replace -- loads selected library item as new scene
  • insert -- adds selected item as child of selected SO (or root)
    • writes .s and .l formulas on the two non-forward axes
  • click selects row, buttons act on selection
• add child -> disaster
• move reset button -> D_Library
• move library up -> between preferences and selection
• add reset button to bottom row of library -> delete all and restore from src/assets
• open library -> 1/2 second hesitation (unnecessary! file io?)
• replace hr in library with separator
• remove translate all button
• detect file hierarchy
  • all name references -> search recursively (glob changed to **/*.di, names preserve folder path)
  • remove list indentation
    • create a segmented control (each folder = segment)
    • only list files in the chosen segment's folder
  • list indented by folder
    • folder name has same collapse-toggle triangle as parts

---

• decide where the files are stored/uploadable from
  1. bundled defaults ship in src/assets/*.di via glob import
  2. user-created files stored in IndexedDB (keyed by name)
  3. library panel merges both sources (user files override bundled with same name)
  4. + library saves to IDB + anchor-downloads to disk (durable backup)
  5. export anchor-downloads only (no IDB save)
• scan the files there, create list of clickable items (table with two columns)
  • name
  • size
• click -> replaces existing graph with SO from file clicked on
• OPTION-click -> inserts SO as child of selected SO
• ability to clear current SO (repurpose reset button -> erase all children)
• ability to add current root SO -> library (IDB + download)
• library panel reads from bundled glob + IDB
• removed export button (redundant with save)
• moved clear to D_Selection as "delete all children", disabled when selected SO has no children
• moved show/hide back to name-row
• add child pushed to far right of actions-row
• unified slot padding to 8px, all vertical gaps to 8px
• disabled cells use accent color
• reset preferences button (clears localStorage except scene/library, reloads)