feat: integrate OCI agent streaming and web voice client

tests/test_text_chunker.py

@@ -0,0 +1,58 @@
+from voice_assistant.agent.text_chunker import TextChunker
+
+
+def test_chunker_emits_sentence():
+    chunker = TextChunker(min_chars=5)
+
+    assert chunker.feed("Olá, tudo bem?") == [
+        "Olá, tudo bem?"
+    ]
+
+
+def test_chunker_handles_incremental_deltas():
+    chunker = TextChunker(min_chars=5)
+
+    assert chunker.feed("Olá,") == []
+    assert chunker.feed(" tudo") == []
+    assert chunker.feed(" bem?") == [
+        "Olá, tudo bem?"
+    ]
+
+
+def test_chunker_preserves_remaining_text():
+    chunker = TextChunker(min_chars=5)
+
+    assert chunker.feed("Olá, tudo bem? Posso ajudar") == [
+        "Olá, tudo bem?"
+    ]
+
+    assert chunker.flush() == "Posso ajudar"
+
+
+def test_chunker_breaks_long_text():
+    chunker = TextChunker(
+        min_chars=5,
+        max_chars=20,
+    )
+
+    segments = chunker.feed(
+        "Esta é uma frase bastante longa sem pontuação"
+    )
+
+    assert segments
+    assert all(
+        len(segment) <= 20
+        for segment in segments
+    )
+
+
+def test_chunker_rejects_invalid_limits():
+    try:
+        TextChunker(min_chars=20, max_chars=10)
+    except ValueError:
+        pass
+    else:
+        raise AssertionError(
+            "Expected ValueError for invalid limits."
+        )
+