P11.5 + B2.1/B2.2: per-command units + description (where applicable)

Adds  to scalar setters whose payloads are
plain numbers OR {value, unit}. Skipped where payload is compound or
mode-dependent (control-%, {F, C: [...]}, etc.) — documented inline.
Every command gains a description field for wikiGen consumption.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/commands/index.js

@@ -12,42 +12,52 @@ module.exports = [
     topic: 'cmd.start',
     aliases: ['i_start'],
     payloadSchema: { type: 'any' },
+    description: 'Trigger / release the sampler start gate.',
     handler: handlers.cmdStart,
   },
   {
     topic: 'set.schedule',
     aliases: ['monsternametijden'],
     payloadSchema: { type: 'any' },
+    description: 'Replace the sampling-times schedule.',
     handler: handlers.setSchedule,
   },
   {
     topic: 'set.rain',
     aliases: ['rain_data'],
     payloadSchema: { type: 'any' },
+    description: 'Push current rain-event data into the sampler logic.',
     handler: handlers.setRain,
   },
   {
     topic: 'data.flow',
     aliases: ['input_q'],
     payloadSchema: { type: 'object' },
+    // Compound payload `{value, unit}` — handler converts internally to m3/h.
+    // Registry-level normalisation is skipped (the handler reads payload.value /
+    // payload.unit directly; flattening would break it).
+    description: 'Push the upstream flow measurement (payload: {value, unit}).',
     handler: handlers.dataFlow,
   },
   {
     topic: 'set.mode',
     aliases: ['setMode'],
     payloadSchema: { type: 'any' },
+    description: 'Switch the monster between auto / manual modes.',
     handler: handlers.setMode,
   },
   {
     topic: 'set.model-prediction',
     aliases: ['model_prediction'],
     payloadSchema: { type: 'any' },
+    description: 'Push the upstream rain-prediction snapshot used by the sampler.',
     handler: handlers.setModelPrediction,
   },
   {
     topic: 'child.register',
     aliases: ['registerChild'],
     payloadSchema: { type: 'string' },
+    description: 'Register a child node (typically a measurement) with this monster.',
     handler: handlers.childRegister,
   },
 ];