fix: use updated ollama ai package

README.md

@@ -133,7 +133,7 @@ Environment variable overrides:
     "openai":     { "apiKey": "..." },
     "google":     { "apiKey": "..." },
     "openrouter": { "apiKey": "..." },
-    "ollama":     { "apiBase": "http://localhost:11434/api" }
+    "ollama":     { "apiBase": "http://localhost:11434" }
   },
   "channels": {
     "sendProgress": true,
@@ -192,7 +192,7 @@ The `agent.model` field is also **required** and should be the model ID without
 | `openrouter` | `anthropic/claude-sonnet-4-5` (OpenRouter uses its own model IDs) |
 | `ollama` | `llama3.2`, `qwen2.5` |
 
-For Ollama, set `providers.ollama.apiBase` (default: `http://localhost:11434/api`).
+For Ollama, set `providers.ollama.apiBase` (default: `http://localhost:11434`).
 
 ### Mattermost setup