Add OpenCode / Ollama LLM integration with gemma4:31b default

selftest.py

@@ -171,11 +171,18 @@ def check_mlx_whisper(synthesized):
     record("mlx whisper (optional)", matches(heard), f"heard {heard!r}")
 
 
+async def check_ollama_llm():
+    from ollama_llm import probe_ollama
+
+    available, reason = await probe_ollama(model="gemma4:31b")
+    record("ollama llm (optional)", available, reason)
+
+
 def check_macos_llm():
     from apple_llm import probe_apple_llm
 
     available, reason = probe_apple_llm()
-    record("macos llm", available, reason)
+    record("macos llm (optional)", available, reason)
 
 
 async def check_claude():
@@ -231,6 +238,7 @@ async def main():
     check_apple_stt(synthesized)
     check_mlx_whisper(synthesized)
     check_macos_llm()
+    await check_ollama_llm()
     await check_claude()
 
     required_failures = [