t-141: stage-1 sprite extraction (individual PNGs, no scene/page)

.gitignore

@@ -5,3 +5,4 @@ brain/
 .DS_Store
 *.log
 bureau-internal/
+__pycache__/

hub/public/office-sample-assets/rectify-manifests/manifest-desk.json

@@ -0,0 +1,39 @@
+{
+ "sheet": "props/sheet-desks-workstations-v2.jpg",
+ "background_key": [
+  255,
+  0,
+  255
+ ],
+ "key_tolerance": 170,
+ "anchor_region": [
+  45,
+  10,
+  175,
+  455
+ ],
+ "anchor_logical_height": 48,
+ "palette_size": 24,
+ "accent_saturation_min": 0.5,
+ "accent_max_area_frac": 0,
+ "regions": [
+  {
+   "name": "desk-tidy",
+   "x": 1035,
+   "y": 254,
+   "w": 350,
+   "h": 201,
+   "group": "desk"
+  },
+  {
+   "name": "chair",
+   "x": 55,
+   "y": 519,
+   "w": 159,
+   "h": 239,
+   "group": "chair",
+   "_round26": "Switched from the side-view chair (x515 y513, row 3) to the front-facing chair at the start of the same row, tight-cropped to its own connected component. See frames.json's round26Fixes.chair for why."
+  }
+ ],
+ "_comment": "Sheet path is relative to projects/bureau/references/office/ in the brain (GET /api/knowledge?file=projects/bureau/references/office/<sheet>&raw=1) \u2014 download it there first, the reference sheets are not committed to git. Re-run: python3 hub/tools/rectify.py <this-file> --out-dir /tmp/check (after adjusting 'sheet' to your local download path) and diff the sha256 in the matching report-*.json against this atlas's own sprite hashes."
+}

hub/public/office-sample-assets/rectify-manifests/manifest-tiles.json

@@ -0,0 +1,38 @@
+{
+ "sheet": "props/sheet-tiles-surfaces-v2.jpg",
+ "background_key": [
+  255,
+  0,
+  255
+ ],
+ "key_tolerance": 170,
+ "anchor_region": [
+  50,
+  10,
+  165,
+  240
+ ],
+ "anchor_logical_height": 48,
+ "palette_size": 32,
+ "accent_saturation_min": 0.15,
+ "accent_max_area_frac": 0,
+ "regions": [
+  {
+   "name": "floor-wood",
+   "x": 270,
+   "y": 20,
+   "w": 265,
+   "h": 220,
+   "group": "floor"
+  },
+  {
+   "name": "wall-cracked",
+   "x": 1130,
+   "y": 20,
+   "w": 255,
+   "h": 220,
+   "group": "wall"
+  }
+ ],
+ "_comment": "Sheet path is relative to projects/bureau/references/office/ in the brain (GET /api/knowledge?file=projects/bureau/references/office/<sheet>&raw=1) \u2014 download it there first, the reference sheets are not committed to git. Re-run: python3 hub/tools/rectify.py <this-file> --out-dir /tmp/check (after adjusting 'sheet' to your local download path) and diff the sha256 in the matching report-*.json against this atlas's own sprite hashes."
+}

hub/public/office-sample-assets/rectify-manifests/manifest-typing4.json

@@ -0,0 +1,63 @@
+{
+ "sheet": "cast/sheet-agent-undercut-typing.jpg",
+ "background_key": [
+  255,
+  0,
+  255
+ ],
+ "key_tolerance": 170,
+ "anchor_region": [
+  24,
+  22,
+  150,
+  362
+ ],
+ "anchor_logical_height": 48,
+ "palette_size": 128,
+ "_comment_palette_size": "Round 28: raised from 28. Root cause of the round-14..27 face/hair craft gap (moneta's round-26 23:54 lead) was NOT an inherent scale limit — raw cell-vote inspection (pre-palette-snap) showed a genuine multi-tone skin ramp (highlight ~(229,151,123) to deep shadow ~(40,4,1)) and hair variation present in the source votes. build_shared_palette's frequency-sorted 'base = base[:palette_size]' truncation was dropping every warm/skin bucket before the top-28 cut: skin/hair occupy a small fraction of total cell area next to the navy suit + cool background + monitor bezel that dominate all 5 frames in this shared-palette group, so their buckets always ranked below the cut regardless of how visually distinct they are. This is NOT the accent_max_area_frac=0 exemption's job (round 25's fix, left untouched here) — skin saturation measured ~0.38-0.46, under accent_saturation_min's 0.5 floor, so it was never accent-eligible and was never meant to be; the real fix is giving the base palette enough room to keep small-area-but-distinct material ramps instead of starving them. 128 chosen empirically: warm/skin candidates in the resulting palette go 0 (at 28) -> 1 (48) -> 2 (64) -> 6 (96) -> 12 (128) -> 12 (160) -> 13 (200) — diminishing returns clearly set in by 128, so it captures the real ramp without needlessly ballooning past the point of new information. Verified: does not touch accent_max_area_frac, does not touch cell_vote_grid/chroma-key logic at all — palette_size only changes how many BASE (already-outer_tol-cleared, non-accent) buckets survive truncation.",
+ "accent_saturation_min": 0.5,
+ "accent_max_area_frac": 0,
+ "regions": [
+  {
+   "name": "idle-anchor",
+   "x": 24,
+   "y": 22,
+   "w": 150,
+   "h": 362,
+   "group": "undercut-agent"
+  },
+  {
+   "name": "typing-0",
+   "x": 190,
+   "y": 22,
+   "w": 290,
+   "h": 362,
+   "group": "undercut-agent"
+  },
+  {
+   "name": "typing-1",
+   "x": 496,
+   "y": 22,
+   "w": 292,
+   "h": 362,
+   "group": "undercut-agent"
+  },
+  {
+   "name": "typing-2",
+   "x": 804,
+   "y": 22,
+   "w": 285,
+   "h": 362,
+   "group": "undercut-agent"
+  },
+  {
+   "name": "typing-3",
+   "x": 1105,
+   "y": 22,
+   "w": 284,
+   "h": 362,
+   "group": "undercut-agent"
+  }
+ ],
+ "_comment": "Sheet path is relative to projects/bureau/references/office/ in the brain (GET /api/knowledge?file=projects/bureau/references/office/<sheet>&raw=1) \u2014 download it there first, the reference sheets are not committed to git. Re-run: python3 hub/tools/rectify.py <this-file> --out-dir /tmp/check (after adjusting 'sheet' to your local download path) and diff the sha256 in the matching report-*.json against this atlas's own sprite hashes."
+}

hub/public/office-sample-assets/rectify-manifests/manifest-window.json

@@ -0,0 +1,32 @@
+{
+ "sheet": "scenes/scene-window-states.jpg",
+ "background_key": [
+  255,
+  0,
+  255
+ ],
+ "key_tolerance": 170,
+ "anchor_region": [
+  0,
+  345,
+  210,
+  423
+ ],
+ "anchor_logical_height": 48,
+ "palette_size": 24,
+ "accent_saturation_min": 0.5,
+ "accent_max_area_frac": 0,
+ "regions": [
+  {
+   "name": "window-blue-night",
+   "x": 207,
+   "y": 420,
+   "w": 257,
+   "h": 219,
+   "group": "window",
+   "_round26": "Re-cropped to the BLUE NIGHT cell's full tight connected-component bbox (was x215 y435 w273 h172, which clipped both the top and bottom frame rails). See frames.json's round26Fixes.window for why."
+  }
+ ],
+ "anchor_source_px_height": 335,
+ "_comment": "Sheet path is relative to projects/bureau/references/office/ in the brain (GET /api/knowledge?file=projects/bureau/references/office/<sheet>&raw=1) \u2014 download it there first, the reference sheets are not committed to git. Re-run: python3 hub/tools/rectify.py <this-file> --out-dir /tmp/check (after adjusting 'sheet' to your local download path) and diff the sha256 in the matching report-*.json against this atlas's own sprite hashes."
+}