feat: 자동측정 IMU 1초 + 전체측정(mbb) 10초 루프

자동측정 변경 (기존: 30초 maa → 신규: 1초 msp + 10초 mbb):
- 1~9초: msp(IMU query) → rsp(accel+gyro) 1초 간격
- 10초째: mbb(전체측정) → rbb(헤더) + reb×6 + raa
- 기존 maa → mbb(sendFullMeasurement)로 전환
- mbb 응답은 rbb: 헤더 후 reb:/raa: 동일 파이프라인

BLE 명령어 추가:
- sendImuQuery(): msp 전송
- sendFullMeasurement(): mbb 전송 (piezoCollector 연동)
- sendLedMode(state): mls 전송

응답 파싱 추가:
- rxs: → "cmd_not_supported" (mid? 미지원 기기 대응)
- rbb: → full measurement header
- rsp: → IMU data

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/src/main/java/com/example/medilightv2android/ble/BleManager.kt

@@ -85,6 +85,8 @@ class BleManager private constructor(private val context: Context) {
     var onPiezoDataReceived: ((ByteArray) -> Unit)? = null
     var onUnexpectedDisconnect: (() -> Unit)? = null
     var onReconnectionFailed: (() -> Unit)? = null
+    var onImuReceived: ((ByteArray) -> Unit)? = null
+    var onMbbHeaderReceived: ((ByteArray) -> Unit)? = null
 
     val isBluetoothReady: Boolean get() = bluetoothAdapter?.isEnabled == true
 
@@ -282,6 +284,8 @@ class BleManager private constructor(private val context: Context) {
             "mcj" -> "NIRS MCJ query"
             "mid" -> "device info query"
             "mls" -> "LED mode ${if (data.size > 4) data[4].toInt() and 0xFF else "?"}"
+            "msp" -> "IMU query"
+            "mbb" -> "full measurement (battery+IMU+temp+6ch)"
             else -> ""
         }
         logd { "sendRaw: $cmdPreview (${data.size} bytes)" }
@@ -353,6 +357,16 @@ class BleManager private constructor(private val context: Context) {
         sendRaw(CRC16.buildCommand("mls", intArrayOf(state)))
     }
 
+    fun sendImuQuery() {
+        sendRaw(CRC16.buildCommand("msp"))
+    }
+
+    /** 전체 측정: 배터리+IMU+온도+6ch piezo (rbb→reb×6→raa) */
+    fun sendFullMeasurement() {
+        piezoCollector.startMultiChannel(6)
+        sendRaw(CRC16.buildCommand("mbb"))
+    }
+
     fun startBatteryPolling() {
         batteryTimer?.let { handler.removeCallbacks(it) }
         sendBatteryQuery()
@@ -789,6 +803,20 @@ class BleManager private constructor(private val context: Context) {
                 val state = if (data.size >= 5) data[4].toInt() and 0xFF else -1
                 debugLogger.rx("rls", data.size, "led_state=$state")
             }
+            "rxs:" -> {
+                val echoCmd = if (data.size > 4) String(data, 4, minOf(data.size - 4, 10), Charsets.US_ASCII).trim() else "?"
+                debugLogger.rx("rxs", data.size, "cmd_not_supported: $echoCmd")
+            }
+            "rbb:" -> {
+                debugLogger.rx("rbb", data.size, "full measurement header (battery+IMU+temp)")
+                onMbbHeaderReceived?.invoke(data)
+            }
+            "rsp:" -> {
+                if (data.size >= 16) {
+                    debugLogger.rx("rsp", data.size, "IMU data")
+                }
+                onImuReceived?.invoke(data)
+            }
             else -> {
                 val hex = data.take(8).joinToString(" ") { "%02X".format(it) }
                 debugLogger.rx("???", data.size, "unknown prefix='$prefix' hex=$hex")