2026.09.06.1538-nightly

2026.09.06.1538-nightly

• docs(guides/usenet): add section on choosing services explicitly (61ef164)
• fix(usenet): keep a completed folder for every category the arrs know (0844e0f)
• fix(metadata/scene-mappings): update user agent (c495b1d)
• fix(usenet/ebml): log where the hole-fill tracker lost alignment (8eba1b8)
• fix(usenet): infer a volume's fragment when its header article is unreadable (87c031b)
• feat(usenet): track unreadable articles per provider (2d8dd11)
• fix(usenet): fail reads whose decoded bytes disagree with their metadata (9c0ec73)
• feat(usenet): verify articles against their yEnc checksums (72ac0a4)