Streaming replies and STT, amplitude lip-sync, one place for speaking

Latency: replies are spoken sentence-by-sentence off the desk API's NDJSON
endpoint, so the wait is time-to-first-sentence rather than the whole model
call, and Deepgram's live websocket transcribes while you're still talking
instead of uploading the WAV afterwards. Both fall back invisibly — a stream
that fails before anything was said drops to converse(), and a socket that
never opens just means the old one-shot path.

Speaking lived in four near-copies in the controller (a reply, a holding line,
a streamed sentence, a dialogue scene) that had already drifted: one didn't arm
barge-in, another skipped the follow-up rule. It's now speech.Speaker plus an
Utterance describing the policy differences, with collaborators injected so the
whole of it tests without Qt or audio.

The mouth follows the audio rather than a timer: tts.level_of reduces each PCM
frame to a 0..1 loudness on a sqrt curve (speech sits well below peak, and a
linear map leaves the mouth barely open during normal talking) and that indexes
the talking frames, which the sprite script now draws as an openness ramp.
Offline pyttsx3 has no waveform, so stale levels hand control back to the timed
loop instead of freezing the mouth mid-syllable.

Also: the pet starts where you left it (ignoring positions on monitors that are
no longer connected, since restoring those faithfully is how it ends up
somewhere unreachable), and `python -m bolt_pet --doctor` is a preflight that
says what to do about each problem rather than only what's wrong.

tests/test_pipeline_smoke.py breaks the pure-logic rule on purpose. Every unit
test passed all week while notifications sat unspoken for minutes, the pet said
things twice and [laughing] got read aloud — each an interaction between two
individually-correct units. It drives whole turns against a real HTTP server on
a loopback port, faking only the mic and the speakers. It found a NameError in
the paint path that would have fired on every repaint while talking.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

tests/test_controller.py

@@ -22,6 +22,14 @@ def no_screen_probes(monkeypatch):
     monkeypatch.setattr(controller_mod.screen_context, "is_fullscreen_active", lambda: False)
 
 
+@pytest.fixture(autouse=True)
+def _no_streaming(monkeypatch):
+    """Most tests drive the plain request/response path; leaving streaming on
+    would have them attempt a real HTTP call, fail, and fall back — passing,
+    slowly, for the wrong reason. The streaming path has its own tests."""
+    monkeypatch.setattr(controller_mod.config, "STREAMING_REPLIES", False)
+
+
 @pytest.fixture
 def ctrl():
     return controller_mod.PetController()
@@ -41,10 +49,10 @@ def test_full_turn_happy_path(monkeypatch, ctrl):
 
     monkeypatch.setattr(controller_mod.mic, "record_utterance", lambda *a, **k: np.zeros(10, dtype=np.int16))
     monkeypatch.setattr(controller_mod.stt, "transcribe", lambda pcm: "what's the weather")
-    monkeypatch.setattr(controller_mod.server_client, "converse", lambda text, on_command=None: controller_mod.server_client.Reply("sunny and 72"))
+    monkeypatch.setattr(controller_mod.server_client, "converse", lambda text, on_command=None, on_say=None: controller_mod.server_client.Reply("sunny and 72"))
     spoken = []
     monkeypatch.setattr(controller_mod.tts, "speak",
-                        lambda text, on_error=None, should_stop=None, voice_id=None: (spoken.append(text), True)[1])
+                        lambda text, on_error=None, should_stop=None, voice_id=None, on_level=None: (spoken.append(text), True)[1])
 
     ctrl._handle_conversation_turn()
 
@@ -59,7 +67,7 @@ def test_turn_with_nothing_heard_returns_to_idle_without_calling_server(monkeypa
     monkeypatch.setattr(controller_mod.mic, "record_utterance", lambda *a, **k: None)
     called = {"n": 0}
     monkeypatch.setattr(controller_mod.server_client, "converse",
-                        lambda text, on_command=None: called.__setitem__("n", called["n"] + 1))
+                        lambda text, on_command=None, on_say=None: called.__setitem__("n", called["n"] + 1))
 
     ctrl._handle_conversation_turn()
 
@@ -97,7 +105,7 @@ def test_turn_with_server_error_flashes_error_then_idle(monkeypatch, ctrl):
     monkeypatch.setattr(controller_mod.mic, "record_utterance", lambda *a, **k: np.zeros(10, dtype=np.int16))
     monkeypatch.setattr(controller_mod.stt, "transcribe", lambda pcm: "hello")
 
-    def boom(text, on_command=None):
+    def boom(text, on_command=None, on_say=None):
         raise controller_mod.server_client.ServerError("server is down")
     monkeypatch.setattr(controller_mod.server_client, "converse", boom)
 
@@ -150,7 +158,7 @@ def test_heartbeat_speaks_a_pending_announcement_when_idle(monkeypatch, ctrl):
     monkeypatch.setattr(controller_mod.server_client, "report_status", lambda: "don't forget your 3pm")
     spoken = []
     monkeypatch.setattr(controller_mod.tts, "speak",
-                        lambda text, on_error=None, should_stop=None, voice_id=None: (spoken.append(text), True)[1])
+                        lambda text, on_error=None, should_stop=None, voice_id=None, on_level=None: (spoken.append(text), True)[1])
     said = _capture(ctrl.said)
 
     ctrl._maybe_heartbeat()