Add a feedback for every controllable state, matrix send presets

A matrix-send knob looked dead on the booth Companion although the console
followed it (verified through Companion's rotate API: -90 -> -60 -> -59):
the module had matrix send actions but no matrix send feedbacks.

- Every action with a readable state now has a matching feedback: matrix
  send on/level text/level bar, matrix and control group solo and fader
  bars, graphic EQ in and band gain text/bar, aux send pan text, and value
  text for trim, gain and filter frequencies. A test checks the parity.
- New action: matrix output solo.
- Matrix sends use the console's -90 dB floor: adjusting down from -inf no
  longer writes -150 there.
- Presets: "Matrix sends to <output>" (on/off and knob per matrix input)
  and graphic EQ in/out. 2970 presets, 1.8 MB.

npm test: 368 checks pass on Node 25 and on Companion's Node 22.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tools/README.md

@@ -75,7 +75,7 @@ inputs, `--auxes N` the busses (default 25), and the matrix (8 outputs, 10 input
 | `/Input_Channels/N/Aux_Send/M/{send_level,send_on,send_pan}/?` | `f` (level dB -150..10, on 0/1, pan 0..1) |
 | `/Input_Channels/N/Aux_Send/M/send_pre-post/?` | `i` (captured as an int, default 0; settable 0..1, which value means "pre" is an assumption; the Companion module does not use it) |
 | `/Input_Channels/N/Group_Send/M/group/?` | `f` 0/1 group assign. Default: inputs 1-8 and 18-21 on group 24. The wire type is the constant `SD_GROUP_ASSIGN_WIRE_TYPE` |
-| `/Matrix_Inputs/N/Matrix_Send/M/{send_level,send_on}/?` | `f` (default -90 and 0, captured) |
+| `/Matrix_Inputs/N/Matrix_Send/M/{send_level,send_on}/?` | `f` (default -90 and 0, captured). A matrix send floors at -90 dB (verified on an S31): level writes are clamped to -90..10, never -150 as for faders and aux sends |
 | `/Graphic_EQ/N/{geq_in,geq_gain_1..32}/?` | `f` |
 | `/Input_Channels/N/{Channel_Input/{trim,phase,phantom,analog_gain,input_pad},Filters/{hi,lo}_filter_{in,freq},Channel_Delay/{delay_on,delay},EQ/eq_in,Dynamics/{comp_in,gate_in},Insert/insert_{A,B}_in}/?` | `f` (switches 0/1) |
 | `/{Aux_Outputs,Group_Outputs}/N/{Buss_Trim/{trim,phase},EQ/eq_in,Dynamics/{comp_in,gate_in},Channel_Delay/{delay_on,delay},Insert/insert_{A,B}_in}/?`, `/Matrix_Outputs/N/Buss_Trim/trim/?` | `f` |

tools/mock-s31.js

@@ -603,6 +603,7 @@ const SD_PROPS = {
   prepost: { kind: 'int', min: 0, max: 1 }, // send_pre-post; captured as an int, range assumed
   group: { kind: 'flag', wire: SD_GROUP_ASSIGN_WIRE_TYPE }, // Group_Send/M/group assign 0/1
   geqGain: { kind: 'f', min: -12, max: 12 },
+  matrixLevel: { kind: 'f', min: -90, max: 10 }, // a matrix send floors at -90 dB (S31: off sends read -90), unlike -150 elsewhere
 };
 /**
  * Per-channel switches and values answered on inputs and busses (Aux_Outputs and Group_Outputs),
@@ -790,7 +791,7 @@ function sdResolve(address) {
     const input = sdMatrixIn[Number(m[1])];
     const snd = input && input.sends[Number(m[2])];
     const prop = m[3] === 'send_on' ? 'on' : 'level';
-    return snd ? { target: snd, prop, spec: SD_PROPS[prop] } : null;
+    return snd ? { target: snd, prop, spec: prop === 'level' ? SD_PROPS.matrixLevel : SD_PROPS.on } : null;
   }
   m = SD_RE_GEQ.exec(address);
   if (m) {