Fire (wfigs) reminders previously dispatched via the generic scheduled
path, which hardcoded the rf_propagation toggle (Meshtastic ch4 / MeshCore
#aida) and ignored the fire's region. They now route through a new
dispatch_scheduled_fire_broadcast() that builds a synthetic fire event from
the fire's lat/lon, derives its region the same way the live fire event
path does, and routes per region_routes.cells['fire'] (per-region MT/MC
channels), falling back to the fire toggle's own defaults when a transport
isn't matrix-owned -- never rf_propagation. rf_propagation and 511
reminders are unchanged. Reminders remain disabled (reminders_wfigs.enabled
stays false); this only fixes routing for when they are enabled.
Co-authored-by: Matt Johnson <mj@k7zvx.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
