Ship generator taxonomy: bytedance class, model-side receipt gate

Provider classes now name the GENERATOR that rendered the pixels, never
the brand. bytedance joins openai/google/muse-image as the shared
ByteDance lineage (Doubao and Jimeng render with one model family;
measured: separate heads cross-fire 32/22 at 3.5x mass, the surgical
union holds 83.9% on the frozen test cell while openai/google/meta/no_ai
stay byte-identical to run1). tc260 stops being a public value: its head
remains as the group veto for the rest of China's generators (without
it, 207/379 China test rows would be falsely named openai or
muse-image), and the loader tolerates provider snapshots that predate
bytedance. The receipt gate moves model-side: stable-name artifact
receipt-gate.npz carries its threshold, head and threshold always load
from one file, and the publish script stages the stable gate from the
weights source. Microsoft stays metadata-only: 144 of its 253 bank rows
name an OpenAI model as their C2PA softwareAgent and none names a
Microsoft renderer.

pre-commit: 1) maintain.sh - exit 1 (uv-secure: lightning 2.6.5 via
trustmark, PYSEC-2026-3624 no fix released; per docs/development.md the
core checks ran separately: ruff clean, pyright 0 errors, 2059 passed
3 skipped); 2) /simplify - single-pass four angles, clean, one noted
skip (gate-test npz staging duplication); 3) docs sync - grepped
bytedance/receipt-gate.npz/provider values over README, docs, skill,
rules: no stale references; 4) CLAUDE.md - improver: no changes,
revise: no additions (learnings live in canonical docs)

scripts/publish_photo_classify_hf.py

@@ -33,6 +33,7 @@ DETECTOR_FILE = "detector.pt"
 PROVIDER_FILE = "provider.pt"
 WEIGHT_FILES = (CLIP_FILE, PROBE_FILE, DETECTOR_FILE, PROVIDER_FILE)
 GATE_FILE = "receipt-gate-2026-09-02.npz"
+GATE_STABLE_FILE = "receipt-gate.npz"
 REPO_ROOT = Path(__file__).resolve().parents[1]
 GATE_SOURCE = REPO_ROOT / "src" / "remove_ai_watermarks" / "assets" / GATE_FILE
 CARD_DIR = REPO_ROOT / "docs" / "photo-classify-hf"
@@ -83,6 +84,10 @@ def stage_weights(dest: Path, src: Path) -> None:
     for name, path in weight_paths(src).items():
         _place(path, dest / name)
         log.info("stage %s (%s bytes)", name, path.stat().st_size)
+    stable_gate = src / GATE_STABLE_FILE
+    if stable_gate.is_file():
+        _place(stable_gate, dest / GATE_STABLE_FILE)
+        log.info("stage %s (%s bytes)", GATE_STABLE_FILE, stable_gate.stat().st_size)
 
 
 def publish(stage: Path, *, token: str, message: str) -> str:
@@ -95,7 +100,7 @@ def publish(stage: Path, *, token: str, message: str) -> str:
         repo_id=HUB_REPO,
         repo_type="model",
         commit_message=message,
-        allow_patterns=["README.md", "operating-point.json", *WEIGHT_FILES, GATE_FILE],
+        allow_patterns=["README.md", "operating-point.json", *WEIGHT_FILES, GATE_FILE, GATE_STABLE_FILE],
     )
     return getattr(commit, "oid", "") or ""