Fix Ollama connection: remove double /v1 in URL

base_url was being set to 'http://localhost:11434/v1' by the frontend,
then LocalProvider appended another '/v1', resulting in '/v1/v1'.
Now the provider uses base_url directly (frontend already appends /v1).
Also fixed health check to hit Ollama root instead of /health.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

python/voice_to_notes/providers/local_provider.py

@@ -1,4 +1,4 @@
-"""Local AI provider — bundled llama-server (OpenAI-compatible API)."""
+"""Local AI provider — Ollama or any OpenAI-compatible API."""
 
 from __future__ import annotations
 
@@ -9,9 +9,9 @@ from voice_to_notes.providers.base import AIProvider
 
 
 class LocalProvider(AIProvider):
-    """Connects to bundled llama-server via its OpenAI-compatible API."""
+    """Connects to Ollama or any OpenAI-compatible API server."""
 
-    def __init__(self, base_url: str = "http://localhost:8080", model: str = "local") -> None:
+    def __init__(self, base_url: str = "http://localhost:11434/v1", model: str = "llama3.2") -> None:
         self._base_url = base_url.rstrip("/")
         self._model = model
         self._client: Any = None
@@ -24,8 +24,8 @@ class LocalProvider(AIProvider):
             from openai import OpenAI
 
             self._client = OpenAI(
-                base_url=f"{self._base_url}/v1",
-                api_key="not-needed",  # llama-server doesn't require an API key
+                base_url=self._base_url,
+                api_key="ollama",  # Ollama doesn't require a real key
             )
         except ImportError:
             raise RuntimeError(
@@ -47,7 +47,9 @@ class LocalProvider(AIProvider):
         try:
             import urllib.request
 
-            req = urllib.request.Request(f"{self._base_url}/health", method="GET")
+            # Check base URL without /v1 suffix for Ollama root endpoint
+            root_url = self._base_url.replace("/v1", "")
+            req = urllib.request.Request(root_url, method="GET")
             with urllib.request.urlopen(req, timeout=2) as resp:
                 return resp.status == 200
         except Exception:
@@ -55,4 +57,4 @@ class LocalProvider(AIProvider):
 
     @property
     def name(self) -> str:
-        return "Local (llama-server)"
+        return "Ollama"