Changelog

[1.2.0] — 2026-06-28

KeydbSource now owns keydb save + update (atomic write to the source's own path); honors the caller-supplied location.

One hex parser across the toolchain. Online and keydb hex inputs now parse through libfreemkv::hex, the same parser the library uses — no separate decoder with its own length/nibble rules.
DiscInputs carries the disc's AACS version, and the tests derive the Unit_Key_RO stride from inputs.version instead of hardcoding it, so an AACS-1.0 (V10, 48-byte) and AACS-2.x (V20/V21, 64-byte) disc are each handled at their own stride.
Online MKB read cap aligned with libfreemkv (64 MiB), and an over-cap MKB is logged rather than silently truncated.

Processing-Key decryption restored. A keydb Processing Key is again driven through the full AACS chain — PK → Media Key (against this disc's own MKB) → Volume Unique Key (with the disc Volume ID) → unit keys — so discs that ship only a Processing Key decrypt again. Stored Media Keys and Volume Unique Keys are still honored directly. (Cross-disc Media-Key reuse remains intentionally disabled.)