Import object categories from files and WoRMS

[mattdawkins]

Add shared desktop/web object-category imports from COCO/VIAME JSON, TXT, CSV, pasted lists, and WoRMS. Imports validate additive hierarchy changes before applying them and preserve imported WoRMS source records when saving.

WoRMS supports paginated name search, child browsing, accepted-name resolution, and optional taxonomic parents. Add on WoRMS stages the selection on File or pasted list alongside pending categories; Add there confirms the import. Hierarchy previews show parent → child. Native browser fetch is wrapped to preserve its required receiver.

Keep the type settings popup readable and close it before opening the import dialog. Bound the bottom type list with flex layout, prevent reactive props from unwrapping the filter controller’s internal refs, and reveal imported unused types after confirmation.

Validation: 194 relevant import, hierarchy, and filter tests pass, with ESLint, TypeScript, and desktop/web production builds. An Electron browser check exercised the settings popup, staging without mutation, final confirmation, and a visible, scrollable bottom hierarchy list afterward. Live Electron WoRMS search and parent retrieval also passed. Tests cover two-step confirmation, preserving pending categories, hierarchy conflicts, arrows, read-only behavior, and importing a hierarchy through reactive panel props.

[BryonLewis]

• Compact WoRMS synonym feedback — synonyms resolve into a summary (“N synonyms → M accepted names”) with optional expandable details, instead of one alert per remap.
• Multi-accepted synonym warning — if one original name maps to multiple accepted taxa, show a single warning listing those targets.
• Staged hierarchy tree preview — review page shows an indented parent/child tree (with ranks when from WoRMS) instead of a flat name + edge list.
• Remove types before applying — pruning a staged type drops it and unused parents above it; children become roots; shared ancestors used by other branches are kept.
• Prune keeps synonym UI in sync — removing a staged accepted name also drops its synonym remaps and multi-accepted warnings so the preview doesn’t mention taxa that are no longer staged.
• Docs — Import-Categories.md updated for the tree preview and prune-before-Add behavior.