TUT.1 Tutorial pictures, wave 3: judge the unseen topics, re-shoot clipped discs, fix help text that disagrees with the app

Waves 1 and 2 put step pictures (orange ring + numbered disc, matching caption discs) on 73 of 687 tutorial topics: 268 pictures, 4 clips. Wave 3: (1) open and judge the never-skimmed topics (DetailCraft base-plates, marks-and-bom, ifc-export, shop-drawings, select-and-change, brace-gussets; CadCraft sheets-and-viewports, blocks, select-objects, insert-from-file-and-library, pictures); (2) re-shoot pictures whose disc clips or covers text (CadCraft hatch 1, MarkupCraft markups-list-and-export 2-3 and statuses-and-replies 2, PartCraft reference-geometry 3); (3) more hands-on topics only where a picture helps (2-4 shots, skip concept/reference/settings/what's-new; clips about 1 per 8 topics), toward the owner's roughly 40% mark; (4) owner decides which help-text mismatches to correct (CadCraft object-snaps, TakeoffCraft auto-count and create-items, MarkupCraft sheet-links and rotate-scale, ModelCraft rotate-scale and paint, PartCraft extrude-and-cut, relations-dimensions, reference-geometry, draft-analysis, BimCraft model-checks and edit-elements, CivilCraft parcels and Radius). Tool: tools/help-walkthrough-shots.mjs with tools/help-shots/<app>.mjs. Wave 1-2 not committed yet.