CAT becomes a peer adapter over the controller, alongside WebAdapter. TCATAdapter
owns the CAT engine + serial/TCP transports and builds the TCATContext: getters
read FController directly (CAT thread), setters/commands call controller commands
marshaled via FController.Invoke. No MainForm or WebAdapter dependency — the
historical CAT->WebAdapter.OnXxx coupling (Mode/AGC/Band/etc.) is gone; CAT talks
only to the controller.
MainForm keeps CAT *settings* (FCATLastGlobal + OnCATSettingsChange + SettingsForm
wiring), now calling FCATAdapter.ApplySettings on change/connect. Removed
InitCATEngine, CATApplySettings, all CATGet*/CATSet*/CATDo*/SyncCAT* and the
FCATEngine/FCATSerial/FCATTcp/FCATSyncFreq fields.
Fixes a latent bug: CATSetFilterIdx routed a filter index through the web BW handler
as a negative-encoded value, but that branch was dead since batch 21 — CAT now calls
FController.SetFilterIdx directly. Adds StoreVfoA (store VFO A without retune when B
is active) and uses the now-real SetBand/BandUp/BandDown/TuneActiveBy commands.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>