改用相机网格生成笔画纹理

统一笔画配置与彩色 patch 的投影网格，替换旧脚本及产物。
已验证 Blender 导出、16 项相关测试、文档与 lint 门禁。

sensors/finger-xynova/r01/design.yaml

@@ -88,27 +88,15 @@ texture_patch_views:
   print:
     base_fill: owned           # white ground, already split by the seam
 
-# Random Stroke Pattern (`orisys-design stroke-texture`).
-# One mode: a capsule of `width` swept `length`, rotated per cell, sized from the camera
-# cell's print-page footprint so a cell the projection stretches gets a proportionally
-# larger mark. `--seed` / `--min-cell-pixels` / `--camera-width-fraction` override per run.
-# Field reference: the inline comments below. This is an image-space experiment, not a
-# print master. The resolved values are written to _stroke_pattern_params.json and
-# recorded in the stroke-texture manifest, which is what makes a run reproducible.
+# Camera-grid capsule strokes (`orisys-design stroke-texture`). Grid, camera projection,
+# UV maps, image size and vector page come from the texture_patch job above.
+# Ratios are fractions of each projected cell. Physical minimum width is not enforced.
 stroke_pattern:
-  seed: 7                    # per-cell offset and angle; reproducible
-  min_cell_pixels: 20        # cells smaller than this are skipped
-  jitter_fraction: 0.66      # mark offset range inside its cell; 0 pins to the centre
-  angle_span_deg: 180.0      # rotation range; 0 makes every stroke parallel
-  width_fraction: 0.50       # width = clamp(cell footprint x this, width_min_mm, width_max_mm)
-  width_min_mm: 0.20
-  width_max_mm: 0.28
-  length_ratio: 2.4          # length = ratio x width
-  coverage_cap: 0.45         # initial placement limit; endpoint growth uses target_coverage
-  neighbourhood_mm: 0.5      # radius of the local-fill neighbourhood
-  clearance_mm: 0.03         # minimum edge-to-edge spacing on the vector page
-  candidate_count: 12        # try alternatives before skipping a cell
-  target_coverage: 0.50      # extend accepted strokes into free space, without overlap
+  seed: 7
+  width_ratio: 0.42
+  length_ratio: 0.84
+  orientation_mode: random
+  proposals: 100000         # used only in optimized mode
 
 # Advisory only: reports a verdict, never blocks generation or changes exit codes.
 # Millimetres are measured on the vector page declared above.