Wear SIP: audio routing, stock-style dialer, DTMF, incoming-call handling, telecom scaffold

- AudioRouteManager: route to onboard speaker when no BT headset is
  connected, BT SCO when one is; set MODE_IN_COMMUNICATION + focus.
- aaudio: build with AAUDIO_PERFORMANCE_MODE_NONE so Android routing
  (speakerphone) is honoured instead of being bypassed by low-latency.
- DialerScreen: restyled to a stock-dialer layout (large number display,
  3x4 keypad with sub-letters, green call FAB, backspace, recent chips).
- InCallScreen: added DTMF keypad (sendDigit) for voicemail/IVR.
- WearBaresipService: on incoming call, wake screen + vibrate + bring
  activity to foreground so Answer/Decline is visible.
- Fixed dial normalization (bare extension -> full SIP URI with domain)
  and the uap parse in uaEvent so defaultUap is set and calls connect.
- config.static: load g711/opus codecs to resolve 488 Not Acceptable Here.
- Telecom scaffold (experiment): PhoneAccount + ConnectionService handed
  incoming calls via addNewIncomingCall to test stock Wear dialer pickup.
- Submodule libbaresip-android rebuilt with g711/opus/aaudio changes.

Verified: assembleDebug green, installs and registers on Galaxy Watch,
incoming call event fires and is handled without crashing.

wear/src/main/assets/accounts

@@ -0,0 +1 @@
+<sip:01273805515@mail.txt3.net>;auth_user="01273805515";auth_pass="cisco55555";outbound="sip:mail.txt3.net:5060;transport=tcp";regint=600;regq=0.5;pubint=0;check_origin=no;mwi=no