feat v1.36.2: per-source glow radius

- marker.glow_radius_cm overrides the global default per device (field
  in the marker dialog, HA units, placeholder = global default); pools
  and door sectors use the per-source radius
- backend schema; smoke_glow extended (11 checks); docs same-commit

docs/CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## v1.36.2 — 2026-07-23
+- **Glow radius is now per source**: every device dialog gained a "Glow
+  radius" field (in your HA units; empty = the global default from general
+  settings, shown as the placeholder). A kettle's night light can glow half
+  a meter while the ceiling lamp floods the room. Door sectors use the same
+  per-source radius.
+
 ## v1.36.1 — 2026-07-23
 - Fixed tap-toggle "doing nothing" on lamps whose individual `light.*` entity
   is **hidden in the registry** (the usual setup when lamps are folded into a

docs/TESTING.md

@@ -140,6 +140,9 @@ Run the *core flows* (marked ★ below) in each environment at least once per mi
       (explicit ripple color still wins); off/white lights unchanged [auto]
 - [ ] Alarm pulse (v1.27.0): leak/smoke/gas/CO/siren in 'on' pulse a red ring over any
       display mode; clears on 'off'; unavailable never alarms [auto]; reduced-motion static
+- [ ] Per-source glow radius (v1.36.2): the device dialog has a "Glow radius"
+      field (HA units; empty = general-settings default shown as placeholder);
+      an override changes that source's pool and door sectors only [auto]
 - [ ] Hidden-light primary (v1.36.1): a lamp whose light entity is HIDDEN in
       the registry (folded into a light group) still toggles/reflects the lamp,
       not its do-not-disturb switch or identify button; visible entities of the