fix: heartbeat no longer emits 'status' with remaining_ms=0

Heartbeat (1-byte FFE4 notify) now emits 'heartbeat' event only.
Only 33-byte state responses emit 'status' with parsed IO data.
Fixes timer jumping to 0 every second during treatment.

miniprogram/services/ble/connection.js

@@ -85,19 +85,11 @@ function handleValueChange(res) {
   if (protocol.PROTOCOL_MODE === 'vendor_33') {
     var parsed = protocol.parseVendorStatus(res.value)
     emit('vendor_raw', parsed)
-    var status = {
-      mode_state: parsed.is_heartbeat ? (parsed.heartbeat || 0) : protocol.MODE_STATE.IDLE,
-      region_mask: protocol.REGION.FULL_FACE,
-      wavelength: 0,
-      brightness: 0,
-      remaining_ms: 0,
-      error_code: 0,
-      battery: 0,
-      temperature: 0,
-      bind_status: 1,
-      subscription: 1
+    if (parsed.is_heartbeat) {
+      emit('heartbeat', { value: parsed.heartbeat })
+      return
     }
-    if (!parsed.is_heartbeat && parsed.ios) {
+    if (parsed.ios) {
       var anyActive = false
       for (var i = 0; i < parsed.ios.length; i++) {
         if (parsed.ios[i].red || parsed.ios[i].infrared || parsed.ios[i].uv || parsed.ios[i].warm_yellow) {
@@ -105,12 +97,19 @@ function handleValueChange(res) {
           break
         }
       }
-      status.mode_state = anyActive ? protocol.MODE_STATE.ACTIVE : protocol.MODE_STATE.IDLE
-      if (parsed.hold_time > 0) {
-        status.remaining_ms = parsed.hold_time * 1000
+      emit('status', {
+        mode_state: anyActive ? protocol.MODE_STATE.ACTIVE : protocol.MODE_STATE.IDLE,
+        region_mask: protocol.REGION.FULL_FACE,
+        wavelength: 0,
+        brightness: 0,
+        remaining_ms: parsed.hold_time > 0 ? parsed.hold_time * 1000 : 0,
+        error_code: 0,
+        battery: 0,
+        temperature: 0,
+        bind_status: 1,
+        subscription: 1
+      })
     }
-    }
-    emit('status', status)
     return
   }
   var frame = protocol.parseFrame(res.value)