test(p40): 连贯带/同seed/夜光回归 + 运行时证据帧

- P40ArtTests 6 例：连贯带覆盖路网且抑制孤立散布、摆放确定性、红灯笼落门口、
  红/石灯笼同光晕路径、同 seed 重生成一致、P40 索引在界内
- AssetPackTests 索引列表加 19/20；fsproj 注册 P40ArtTests
- scripts/make-p40-closeups.py 乌篷船 2x NEAREST 特写
- docs/维护说明.md 追加 P40 小节；证据 4 帧白块检查 0 命中，重复运行 byte-identical
- Release 全量 Desktop 201/201、Kernel 119/119 exit 0

1 files changed, 41 insertions, 0 deletions

diff --git a/scripts/make-p40-closeups.py b/scripts/make-p40-closeups.py
new file mode 100644
index 0000000..1add13e
--- /dev/null
+++ b/scripts/make-p40-closeups.py
@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+"""P40 evidence: NEAREST 1x->2x close-up of the Wu Peng boat at a doorway cluster.
+
+Takes the real 1280x720 game frames captured by the `LV_P40_SHOT=1` hook and
+crops the boat region, upscaling exactly 2x with NEAREST so pixel edges stay
+sharp (no mixed colours). Deterministic: fixed crop box, pure function of the
+input PNG, so running twice yields byte-identical output.
+
+Usage:
+    python3 scripts/make-p40-closeups.py <record-dir> <out-dir>
+"""
+
+import sys
+from pathlib import Path
+
+from PIL import Image
+
+# (source frame, crop box x0,y0,x1,y1, output name)
+CROPS = [
+    ("p40-boat.png", (524, 288, 724, 408), "p40-boat-closeup-2x.png"),
+]
+
+
+def main(argv):
+    if len(argv) != 3:
+        sys.stderr.write(__doc__)
+        return 2
+    record_dir = Path(argv[1])
+    out_dir = Path(argv[2])
+    out_dir.mkdir(parents=True, exist_ok=True)
+    for source_name, box, out_name in CROPS:
+        source = Image.open(record_dir / source_name).convert("RGBA")
+        crop = source.crop(box)
+        doubled = crop.resize((crop.width * 2, crop.height * 2), Image.NEAREST)
+        doubled.save(out_dir / out_name)
+        print(f"ok {out_name} {doubled.width}x{doubled.height} from {source_name} box={box}")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main(sys.argv))