* engine: plateOnly -- every support on the build plate, none on the part (#218). Auto and the short walls drop a line the part-attached path would take (built or floored) and count it as skipped.onPart, never stilting it to the plate through the part; drawnWall refuses a line with part under it, naming the setting, and its squat fallback skips the part; the fill pass never retries a wall on the part. Off by default: sweep vs main identical. tests: plate_only -- a drawn line over the part refused, over open plate byte-identical; Auto and Full on the portal at Y90 build nothing on the part and count it; off, the lbracket is unchanged
* ui + plugins: a Plate only checkbox under Walls (#218) -- read by the auto build and the drawn walls; the readout says how many supports it left off and why, and names it when it emptied a part; undoable; German strings. options.json gains plateOnly, so every plugin dialog shows it, and both entries pass it on. tests: the dead-control check runs it on the portal at Y90 (the lbracket has no wall on the part); FreeCAD and Blender unit fixtures list it
* plate only: Full refuses a line over the part before building it, and a mixed line keeps its plate stretch (review) -- the local pass turned the on-part retry back on, and every try reached drawnWall to be refused: the portal at Y90 spent all 120 tries and blamed the wall limit. stationClear's `plate` now refuses a station with part under it on every try. Auto hands a line the part-attached path claims to the plate path (its column probes trim the stations over the part) instead of dropping it whole. The readout names Plate only when it emptied a part in any mode, not only Prop; German help line. tests: every built support reaches the plate, Full isn't capped
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Co-authored-by: matthewtrahan <mathyout@pm.me>
overFaces was every face past the threshold, but the site paints only the faces in
regions it supports red (res.kept) and the too-small ones amber. A host painting
overFaces red would have called slivers overhangs that no fin targets. Now
overFaces = red, smallFaces = amber, both pinned to paintOverhangs' rule (a shelf +
2 mm nub part gives an amber face, so that half of the check runs).
drawWall: the site comparison checks where the wall is, not just its counts, on an
off-centre part; layer height 0.1 / 0.3 reach the wall. host_draw_wall refuses a
NaN end in Python instead of a raw JS parse error; stats say partAttached.
engine/draw_entry.js drawWall(soup, a, b, options): the part as computeFins takes it
and the two clicked points in the same frame -> web/draw.js drawnWall, called as
web/ui/walls.js calls it (print-frame part, the material's tunables set). Same seat
as computeFins, so the wall is bit-identical wherever the part sits; a wall it can't
build comes back with the site's reason ("wall too short ..."). Bridge: drawWallB64;
Python: host_draw_wall.
Tests pin it to the site's wall (PLA and PETG), plate-position independent, no
clearance leak into the next wall or the next computeFins.
