fix: shortcut syncs on/off with shared sidetone state and gates on capability

headsetcontrol/shortcut.luau

@@ -2,6 +2,8 @@ local hsc = require("./lib/hsc.luau")
 
 local on = false
 local battery = nil
+local capsSidetone = false
+local errorState = ""
 
 local function render()
   local label = on and noctalia.tr("shortcut.on") or noctalia.tr("shortcut.off")
@@ -31,7 +33,34 @@ local function apply(value)
   end)
 end
 
+local function syncState()
+  local v = noctalia.state.get("caps")
+  if v then capsSidetone = v.sidetone == true end
+  v = noctalia.state.get("error")
+  if v ~= nil then errorState = v end
+  v = noctalia.state.get("sidetone")
+  if v ~= nil then
+    on = v > 0
+  end
+end
+
+function onCapsChanged(v)
+  capsSidetone = v ~= nil and v.sidetone == true or false
+end
+
+function onErrorChanged(v)
+  errorState = v or ""
+end
+
+function onSidetoneChanged(v)
+  if v ~= nil then
+    on = v > 0
+    render()
+  end
+end
+
 function onClick()
+  if not capsSidetone or errorState ~= "" then return end
   if on then
     apply(0)
   else
@@ -39,7 +68,12 @@ function onClick()
   end
 end
 
-noctalia.state.watch("battery", function(v) battery = v; render() end)
+noctalia.state.watch("battery", function(v) battery = v or battery; render() end)
+noctalia.state.watch("caps", onCapsChanged)
+noctalia.state.watch("error", onErrorChanged)
+noctalia.state.watch("sidetone", onSidetoneChanged)
+
 local b = noctalia.state.get("battery")
 if b then battery = b end
+syncState()
 render()