Add Wear OS SIP client module running baresip NDK stack

- New :wear application module (Wear Compose, minSdk 30)
- Second JNI lib 'wearbaresip' reusing distribution static libs
- Watch-side service initializes baresip via full init path
  (libre_init -> conf_configure -> baresip_init -> ua_init)
- FGS started from MainActivity foreground state with mic type
  only (phoneCall requires default-dialer, rejected on watch)
- Runtime-verified: builds, installs, native lib loads and SIP
  stack starts on armeabi-v7a Wear OS device

settings.gradle.kts

@@ -1,5 +1,2 @@
-plugins {
-    id("org.gradle.toolchains.foojay-resolver-convention") version "1.0.0"
-}
-
-include (":app")
+include(":app")
+include(":wear")