fix: 去掉面板日期 + 修复NFC全零卡号误触发

1. 面板去掉日期显示，只保留时间
2. FiseNfcController读到全零卡号（无卡贴近）时不触发回调，
   避免拿无效nfcId调API导致直接失败

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

app/src/main/java/com/xiaoqu/watch/device/nfc/FiseNfcController.kt

@@ -80,7 +80,8 @@ class FiseNfcController @Inject constructor() : NfcController {
                             content.replace("\\s+".toRegex(), "")
                         }
 
-                        if (nfcId.isNotEmpty()) {
+                        // 非空且非全零才算有效卡号（全零=无卡贴近）
+                        if (nfcId.isNotEmpty() && nfcId.any { it != '0' }) {
                             Timber.d("NFC控制: 读到卡号 $nfcId")
                             // 切回主线程回调
                             withContext(Dispatchers.Main) {

app/src/main/java/com/xiaoqu/watch/ui/punch/PunchPanelView.kt

@@ -35,7 +35,6 @@ class PunchPanelView @JvmOverloads constructor(
     private val overlay: View
     private val panelContent: LinearLayout
     private val tvPunchTime: TextView
-    private val tvPunchDate: TextView
     private val tvNfcHint: TextView
     private val btnPunchIn: TextView
     private val btnPunchOut: TextView
@@ -63,7 +62,6 @@ class PunchPanelView @JvmOverloads constructor(
         overlay = findViewById(R.id.overlay)
         panelContent = findViewById(R.id.panelContent)
         tvPunchTime = findViewById(R.id.tvPunchTime)
-        tvPunchDate = findViewById(R.id.tvPunchDate)
         tvNfcHint = findViewById(R.id.tvNfcHint)
         btnPunchIn = findViewById(R.id.btnPunchIn)
         btnPunchOut = findViewById(R.id.btnPunchOut)
@@ -171,8 +169,6 @@ class PunchPanelView @JvmOverloads constructor(
 
     /** 更新时钟显示 */
     fun updateClock() {
-        val info = DateUtil.getDateInfo()
         tvPunchTime.text = DateUtil.formatTimeShort()
-        tvPunchDate.text = "${info.month}月${info.day}日 ${info.week}"
     }
 }

app/src/main/res/layout/view_punch_panel.xml

@@ -37,16 +37,6 @@
             android:textColor="@color/text_primary"
             android:textSize="48sp" />
 
-        <!-- 日期显示 -->
-        <TextView
-            android:id="@+id/tvPunchDate"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_marginTop="4dp"
-            android:text="1月1日 星期一"
-            android:textColor="@color/text_secondary"
-            android:textSize="16sp" />
-
         <!-- NFC 扫描提示（默认隐藏） -->
         <TextView
             android:id="@+id/tvNfcHint"