fix: silently filter VPN client persistent notifications

Surfboard (and other VPN/proxy clients) post a high-frequency persistent
notification showing up/down traffic. Once day.app direct-routing was
configured, these got forwarded to Bark and spammed the log (300 entries).

Add silentPackages (Surfboard / Clash Meta / Clash for Android / v2rayNG)
to NotificationProcessor, filtered silently (no log, no forward) right
after the ongoing-notification check. CLAUDE.md synced.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app/src/main/java/com/a2i/forwarder/core/NotificationProcessor.kt

@@ -49,6 +49,14 @@ class NotificationProcessor(private val context: Context) {
         "com.google.android.gms",
     )
 
+    // 静默过滤的包名：代理/VPN 客户端的常驻流量通知，高频且无意义，过滤不写日志
+    private val silentPackages = setOf(
+        "com.getsurfboard",                 // Surfboard
+        "com.github.metacubex.clash.meta",  // Clash Meta for Android
+        "com.github.kr328.clash",           // Clash for Android
+        "com.v2ray.ang",                    // v2rayNG
+    )
+
     fun process(sbn: StatusBarNotification): Decision {
         val pkg = sbn.packageName
         val n = sbn.notification ?: return Decision(null, "无通知", pkg, null)
@@ -94,6 +102,10 @@ class NotificationProcessor(private val context: Context) {
         if (settings.skipOngoing.value && isOngoing)
             return Decision(null, "持续性通知", appLabel, null, silent = true)
 
+        // ---- 静默包名过滤（VPN/代理客户端的常驻流量通知，高频无意义，不写日志）----
+        if (pkg in silentPackages)
+            return Decision(null, "常驻通知静默", appLabel, null, silent = true)
+
         // ---- App 黑白名单 ----
         if (!rules.isForwardingOn(pkg))
             return Decision(null, "此 App 已关", appLabel, null)