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feat(app): 1:1 voice and video calls

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End-to-end encrypted calls between two contacts over WebRTC. Call
signalling (offer, answer, hang-up) travels as ordinary Signal-encrypted
messages through the relay; media is DTLS-SRTP, peer to peer when
possible and through the operator's TURN server otherwise.

- Non-trickle ICE (candidates gathered for up to 3 s), 45 s ring
  timeout, busy handling, and a call log entry in the conversation.
- The system call UI rings even when the app is closed: CallKit from a
  PushKit VoIP push on iOS, a full-screen incoming call from an FCM
  wake-up on Android. The wake-up carries no caller; the app learns who
  is calling from the queued offer once it is unlocked.
- New permissions: camera for video, audio routing and Bluetooth
  headsets, network state; iOS background modes audio and voip.

Push on Android: a fresh install now picks UnifiedPush when a
distributor is installed and FCM otherwise, instead of leaving wake-ups
off. Without a wake-up Android puts the app to sleep and messages wait
until it is opened. Users can switch at any time in Settings.
This commit is contained in:
Julius Joska
2026-10-03 22:44:39 +02:00
parent 9a638545dd
commit 933a74c900
17 changed files with 1310 additions and 24 deletions
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app/android/app/src/main/AndroidManifest.xml
+8 -1
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@@ -1,8 +1,15 @@
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools">
<uses-permission android:name="android.permission.INTERNET" />
<!-- Nahrávání hlasových zpráv -->
<!-- Nahrávání hlasových zpráv a hovory -->
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<!-- Hovory (WebRTC): kamera u videohovoru, přepínání reproduktoru
a Bluetooth sluchátka, sledování změny sítě během hovoru. -->
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" android:required="false" />
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
<!-- Firebase Messaging tiše přidává AD_ID oprávnění; Šepot inzertní ID
nepoužívá (žádné reklamy/tracking) → odebíráme, ať sedí Play deklarace. -->
<uses-permission android:name="com.google.android.gms.permission.AD_ID"