Add the "resources" section (?page=resources&projectId=): professions and
companies assigned to a project, with the same lists, fields, texts and
optimistic add/remove with rollback as the legacy web part.
PnPjs is replaced by SharePoint REST through the app's IHttpClient so the
bundle needs no new dependency: the same $select/$expand/$filter, PnP paging
replaced by following odata.nextLink, adds as POST to items with the same
body, deletes as POST with X-HTTP-Method DELETE and IF-MATCH *. Known legacy
edge cases (temporary negative id) are kept and listed in the checklist.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Тимур Городецкий
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