Channel numbers on the remote pad, EPG column redesign, calmer overlay

- Number keys type the stable channel number (position in Alle Sender,
  shown identically in every view) with a live feedback badge; commits
  after a short pause or as soon as no longer number can match.
- EPG cell is a left-aligned column with a fixed leading edge: title +
  time range, progress under the title, next line only when it differs;
  placeholder programmes (kein Programm / no information) count as no
  EPG data. Star hidden in the favorites view.
- Player overlay: no LIVE dot (reads as recording) and no status word
  while playing; state text only for paused/buffering/error.
- Settings pill gets a resting surface so it reads as a target.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

app/build.gradle.kts

@@ -12,8 +12,8 @@ android {
         applicationId = "dev.castarr.tv"
         minSdk = 26
         targetSdk = 35
-        versionCode = 10
-        versionName = "0.5.0"
+        versionCode = 11
+        versionName = "0.6.0"
     }
 
     // Release signing from environment (see ~/.keys/castarr-release.env on the