v1.0.6: Allen & Heath console support (Qu, SQ, Avantis/dLive/GLD) and discovery/DCA fixes#19
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Qu shares the SQ MIDI-over-TCP control path (same A&H 'Soft' family, port 51325); all Qu models run the same 32-channel DSP and differ only in fader count. Adds ConsoleType::Qu16/24/32, capabilities, QuProtocol (reusing the SQ MIDI base), ProtocolFactory wiring, protocolId lookups, and allSupported so the console picker lists them. Verified against the official A&H SQ MIDI Protocol.
Recovered the real discovery wire contracts from the reference firmware and corrected every probe: - WING: raw 'WING?' to UDP 2222 (was an OSC probe the console ignores); parse the 'WING,<ip>,<name>,<model>,<serial>,<fw>' reply. - X32/M32: parse all OSC /xinfo args so M32 is no longer misdetected as X32. - Yamaha: replace the non-functional OSC/8000 probe with the real YSDP datagram on UDP 54330 (control stays SCP/TCP 49280). - Allen & Heath SQ/dLive/Avantis: two-stage discovery - broadcast the per-family 'Find' strings to UDP 51320, then an async TCP identify (SQ 51326 binary, dLive/Avantis 51321 SysEx) to resolve the model. Adds a raw-datagram + TCP-identify probe mechanism to ConsoleDiscoveryService (AnyIPv4 bind, per-interface broadcast, unicast probeHost fallback), a testable processDatagram seam, and a full discovery test suite.
Verified against the official A&H SQ MIDI Protocol (Firmware V2.0.3): - Scene recall was emitting a GLD-style SysEx; the SQ/Qu/GLD MIDI interface uses Bank Select (CC0) + Program Change (1-based scene, banks of 128). e.g. scene 156 -> B0 00 01 C0 1B. - DCA fader NRPN LSB base was 0x20 (invented); the Level table gives 0x67 (DCA1=0x67..DCA8=0x6E). Input level (MSB 0x40), input/DCA mutes, and the 4-CC NRPN framing were already correct and are now covered by byte-exact tests. The fader value is a 14-bit position; the console applies its own NRPN Fader Law (Linear/Audio Taper), so the linear encoding is the documented behaviour.
…Live/GLD) Replaces the invented [len][type][float] stub with the actual A&H property protocol recovered byte-exact from the reference firmware: - F0..F7 length-prefixed framing; subscribe-by-name handshake that learns each object's 2-byte handle from the reply; SET frames F0 00 00 <handle> 00 00 <op> <idx> 00 <disc> <val> F7. - Channel level/mute, DCA mute, scene recall with per-console opcodes (Avantis 0x25/0x26, dLive 0x30/0x31), firmware-gated variants (+6/+8), and dLive bank/spill addressing (op 0x12). - Exact per-0.1 dB lookup tables (not a formula), distinct per family. - GLD moved onto its real property protocol (op 0x16, own dB table) with a secondary MIDI socket for scene-recall MMC, matching the reference two-socket design; capabilities updated to ACE-TCP 51321. - DCA fader dropped (receive-only in the reference). Firmware wired from the discovered console. Byte-exact tests for every frame and both dB tables.
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