my-sea voice Phase C: WebRTC mesh signaling app + TURN endpoint + voice-btn wiring + coturn infra — TDD

Phase C (final) of the my-sea invite → spectator → voice blueprint. Self-
hosted WebRTC mesh voice, built room-general but wired for my-sea only; epic
6-seat rooms reuse the same consumer later (key on Room.id). Media never
touches the server — only signaling is relayed. Built from the blueprint's
distilled spec (disco-voice-mesh.pdf unreadable in-env: no poppler/pypdf).

- C1: new apps/voice/ — RoomVoiceConsumer (AsyncJsonWebsocketConsumer):
  signaling-only relay (room group voice.<room_id> + per-peer peer.<uuid>;
  hello→present handshake, offer/answer/ice routed by target/source, left on
  disconnect). room_id is a STRING kwarg (mysea-<owner_id> now). _can_join
  gates: mysea → owner OR present invitee (token deposited, not left); epic
  UUID → seated gamer (later). routing.py ws/voice/<str:room_id>/; asgi.py
  aggregates epic + voice urlpatterns under AuthMiddlewareStack.
  voice-mesh.js: VoiceRoom client (getUserMedia AEC/NS/AGC, mesh
  RTCPeerConnection, newcomer-offers handshake, tuneOpus SDP munge =
  inbandfec+dtx+40kbps cap, mute via getAudioTracks().enabled), lazy-loaded.
- C2: apps/api VoiceTURNCredentialsAPI at /api/voice/turn-credentials/ —
  coturn use-auth-secret REST scheme: username=<expiry>:<user_id>,
  credential=base64(HMAC-SHA1(username, COTURN_SHARED_SECRET)) + stun/turn
  iceServers + ttl. Authenticated-only. 4 ITs (HMAC shape, auth gate).
- C3: settings COTURN_SHARED_SECRET / COTURN_TURN_HOST / COTURN_REALM /
  COTURN_TTL env block.
- C4: #id_voice_btn wiring — _burger.html renders .active + data-room-id when
  voice_active; burger-btn.js bindVoiceBtn (active click → lazy-load
  voice-mesh.js → join / toggle-mute; inactive → existing 2-pulse flash).
  my_sea (owner) + my_sea_visit (spectator) views compute voice_active
  (open 24h window) + voice_room_id=mysea-<owner_id>; spectator page now
  includes the burger. 4 voice-context ITs.
- C5: infra/coturn.conf.j2 (use-auth-secret, the external-ip footgun, relay
  port range, TLS 5349, peer-IP lockdown) + infra/coturn-playbook.yaml
  (dedicated droplet, PySwiss-style split: install coturn, template conf, ufw
  3478/5349/49152-65535, systemd enable) + [coturn] inventory placeholder.
  *** Manual ops step: provision the droplet + fill inventory before voice
  works on staging/prod; CI/local need none of it. ***
- C6: 8 channels ITs (@tag channels) — connect/auth/_can_join gate (owner,
  present invitee, stranger, not-present, anon) + hello/present handshake +
  offer routing + left-on-disconnect. Scope-injected; TransactionTestCase.
- JS: VoiceMeshSpec.js (tuneOpus) + voice-mesh.js registered in SpecRunner.

1440 IT/UT green; voice channels IT + full Jasmine + voice-btn FT green.
Voice infra is code-complete — provision the coturn droplet to go live.

Code architected by Disco DeDisco <discodedisco@outlook.com>
Git commit message Co-Authored-By:
Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/apps/gameboard/tests/integrated/test_sea_visit.py

@@ -173,3 +173,51 @@ class MySeaVisitLeaveTest(TestCase):
         stranger = User.objects.create(email="x@test.io", username="x")
         self.client.force_login(stranger)
         self.assertEqual(self.client.post(self.url).status_code, 403)
+
+
+class MySeaVoiceContextTest(TestCase):
+    """Phase C — the #id_voice_btn lights up (voice_active) for both the
+    owner and the present invitee while the 24h voice window is open, keyed on
+    mysea-<owner_id>."""
+
+    def setUp(self):
+        self.owner = _owner_with_sig()
+        self.bud = User.objects.create(email="bud@test.io", username="budster")
+        self.room_id = f"mysea-{self.owner.id}"
+
+    def _present_invite(self, voice_future=True):
+        return SeaInvite.objects.create(
+            owner=self.owner, invitee=self.bud, invitee_email=self.bud.email,
+            status=SeaInvite.ACCEPTED, accepted_at=timezone.now(),
+            token_deposited_at=timezone.now(),
+            voice_until=timezone.now() + (
+                timedelta(hours=24) if voice_future else timedelta(hours=-1)
+            ),
+        )
+
+    def test_spectator_voice_active_in_context(self):
+        self._present_invite()
+        self.client.force_login(self.bud)
+        ctx = self.client.get(
+            reverse("my_sea_visit", args=[self.owner.id])
+        ).context
+        self.assertTrue(ctx["voice_active"])
+        self.assertEqual(ctx["voice_room_id"], self.room_id)
+
+    def test_owner_voice_active_when_present_invitee_has_window(self):
+        self._present_invite()
+        self.client.force_login(self.owner)
+        ctx = self.client.get(reverse("my_sea")).context
+        self.assertTrue(ctx["voice_active"])
+        self.assertEqual(ctx["voice_room_id"], self.room_id)
+
+    def test_owner_voice_inactive_without_present_invitee(self):
+        self.client.force_login(self.owner)
+        ctx = self.client.get(reverse("my_sea")).context
+        self.assertFalse(ctx["voice_active"])
+
+    def test_owner_voice_inactive_when_window_lapsed(self):
+        self._present_invite(voice_future=False)
+        self.client.force_login(self.owner)
+        ctx = self.client.get(reverse("my_sea")).context
+        self.assertFalse(ctx["voice_active"])