release: bump version to 0.0.4.7

- aria_bridge clean_text_for_tts: "0.1" / "0,5" / "1,25" wird jetzt als
  "null komma eins" / "null komma fuenf" / "eins komma zwei fuenf"
  ausgeschrieben. Lookahead verhindert Match auf IP-artige Strings.
- PcmStreamPlayer: 200ms Stille am Stream-Anfang, damit AudioTrack
  sauber anfaehrt und die ersten Worte nicht verschluckt werden.
  (XTTS-Warmup + play()-Startup-Latenz)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

android/android/app/build.gradle

@@ -79,8 +79,8 @@ android {
         applicationId "com.ariacockpit"
         minSdkVersion rootProject.ext.minSdkVersion
         targetSdkVersion rootProject.ext.targetSdkVersion
-        versionCode 405
-        versionName "0.0.4.5"
+        versionCode 407
+        versionName "0.0.4.7"
         // Fallback fuer Libraries mit Product Flavors
         missingDimensionStrategy 'react-native-camera', 'general'
     }

android/android/app/src/main/java/com/ariacockpit/PcmStreamPlayerModule.kt

@@ -33,6 +33,9 @@ class PcmStreamPlayerModule(reactContext: ReactApplicationContext) : ReactContex
         // Sekunden Audio die VOR play()-Start gepuffert sein muessen.
         // 2.5s Vorrat = genug um XTTS-Render-Pausen zwischen Chunks zu puffern.
         private const val PREROLL_SECONDS = 2.5
+        // Stille am Stream-Anfang, damit AudioTrack sauber anfaehrt und die
+        // ersten Samples nicht abgeschnitten werden (XTTS-Warmup + play()-Latenz).
+        private const val LEADING_SILENCE_SECONDS = 0.2
     }
 
     override fun getName() = "PcmStreamPlayer"
@@ -45,6 +48,7 @@ class PcmStreamPlayerModule(reactContext: ReactApplicationContext) : ReactContex
     @Volatile private var prerollBytes: Int = 0
     @Volatile private var playbackStarted = false
     @Volatile private var bytesBuffered: Long = 0
+    @Volatile private var streamBytesPerFrame: Int = 2 // mono s16le default
 
     // ── Lifecycle ──
 
@@ -64,6 +68,7 @@ class PcmStreamPlayerModule(reactContext: ReactApplicationContext) : ReactContex
             prerollBytes = prerollTarget
             bytesBuffered = 0
             playbackStarted = false
+            streamBytesPerFrame = channels * 2 // s16 = 2 bytes per sample
 
             val newTrack = AudioTrack.Builder()
                 .setAudioAttributes(
@@ -92,6 +97,18 @@ class PcmStreamPlayerModule(reactContext: ReactApplicationContext) : ReactContex
             writerThread = Thread({
                 val t = track ?: return@Thread
                 try {
+                    // Leading-Silence in den Buffer — gibt AudioTrack Zeit anzufahren.
+                    val silenceBytes = ((sampleRate * channels * 2) * LEADING_SILENCE_SECONDS).toInt() and 0x7FFFFFFE
+                    if (silenceBytes > 0) {
+                        val silence = ByteArray(silenceBytes)
+                        var silOff = 0
+                        while (silOff < silence.size && !writerShouldStop) {
+                            val w = t.write(silence, silOff, silence.size - silOff)
+                            if (w <= 0) break
+                            silOff += w
+                        }
+                        bytesBuffered += silence.size
+                    }
                     while (!writerShouldStop) {
                         val data = queue.poll(50, java.util.concurrent.TimeUnit.MILLISECONDS) ?: run {
                             if (endRequested) {
@@ -127,6 +144,30 @@ class PcmStreamPlayerModule(reactContext: ReactApplicationContext) : ReactContex
                 } catch (e: Exception) {
                     Log.w(TAG, "Writer-Thread Fehler: ${e.message}")
                 } finally {
+                    // Warten bis alle geschriebenen Samples tatsaechlich abgespielt sind,
+                    // sonst cuttet t.release() die letzten Sekunden ab.
+                    try {
+                        val totalFrames = (bytesBuffered / streamBytesPerFrame).toInt()
+                        var lastPos = -1
+                        var stalledCount = 0
+                        while (!writerShouldStop) {
+                            val pos = t.playbackHeadPosition
+                            if (pos >= totalFrames) break
+                            // Safety: wenn Position 2s nicht mehr vorwaerts → AudioTrack hing
+                            if (pos == lastPos) {
+                                stalledCount++
+                                if (stalledCount > 40) {
+                                    Log.w(TAG, "playback stalled at $pos/$totalFrames — give up")
+                                    break
+                                }
+                            } else {
+                                stalledCount = 0
+                                lastPos = pos
+                            }
+                            Thread.sleep(50)
+                        }
+                        Log.i(TAG, "Playback fertig: frames=$totalFrames pos=${t.playbackHeadPosition}")
+                    } catch (_: Exception) {}
                     try { t.stop() } catch (_: Exception) {}
                     try { t.release() } catch (_: Exception) {}
                 }

android/package.json

@@ -1,6 +1,6 @@
 {
   "name": "aria-cockpit",
-  "version": "0.0.4.5",
+  "version": "0.0.4.7",
   "private": true,
   "scripts": {
     "android": "react-native run-android",

bridge/aria_bridge.py

@@ -150,6 +150,15 @@ def _small_range_to_words(m):
     return f"{_num_to_words_de(a)} bis {_num_to_words_de(b)}"
 
 
+def _decimal_to_words(m):
+    """'0.1' / '0,1' → 'null komma eins', '1,25' → 'eins komma zwei fuenf'."""
+    int_part = int(m.group(1))
+    dec_part = m.group(2)
+    int_word = _num_to_words_de(int_part) if 0 <= int_part <= 59 else str(int_part)
+    dec_words = " ".join(_num_to_words_de(int(d)) for d in dec_part)
+    return f"{int_word} komma {dec_words}"
+
+
 _UNIT_WORDS = [
     (r'\bTB\b', 'Terabyte'),
     (r'\bGB\b', 'Gigabyte'),
@@ -236,6 +245,11 @@ def clean_text_for_tts(text: str) -> str:
     # Kleine Zahlen-Bereiche ohne "Uhr": "5-6" → "fuenf bis sechs"
     t = _re_tts.sub(r'\b(\d{1,2})\s*[-–]\s*(\d{1,2})\b', _small_range_to_words, t)
 
+    # Dezimalzahlen: "0.1" / "0,5" / "1,25" → "null komma eins" / "null komma fuenf" / ...
+    # Muss vor "Zahl+Einheit" laufen, sonst frisst die Unit-Regel den Nachkommaanteil.
+    # Lookahead verhindert Match auf IP-artigen Strings wie 192.168.1.1.
+    t = _re_tts.sub(r'\b(\d+)[.,](\d+)(?![.,\d])', _decimal_to_words, t)
+
     # Zahlen + Einheit: "22GB" → "22 Gigabyte" (Leerzeichen einfuegen)
     t = _re_tts.sub(r'(\d+)([A-Za-z]{1,4})\b', r'\1 \2', t)