feat: list available embedding/LLM models for ollama (#1840)

.github/workflows/test_ollama.yml

@@ -1,5 +1,8 @@
 name: Endpoint (Ollama)
 
+env:
+  OLLAMA_BASE_URL: "http://localhost:11434"
+
 on:
   push:
     branches: [ main ]
@@ -36,3 +39,7 @@ jobs:
     - name: Test embedding endpoint
       run: |
         poetry run pytest -s -vv tests/test_endpoints.py::test_embedding_endpoint_ollama
+
+    - name: Test provider
+      run: |
+        poetry run pytest -s -vv tests/test_providers.py::test_ollama

.github/workflows/tests.yml

@@ -69,4 +69,4 @@ jobs:
         LETTA_SERVER_PASS: test_server_token
         PYTHONPATH: ${{ github.workspace }}:${{ env.PYTHONPATH }}
       run: |
-        poetry run pytest -s -vv -k "not test_tools.py and not test_concurrent_connections.py and not test_quickstart and not test_endpoints and not test_storage and not test_server and not test_openai_client" tests
+        poetry run pytest -s -vv -k "not test_tools.py and not test_concurrent_connections.py and not test_quickstart and not test_endpoints and not test_storage and not test_server and not test_openai_client and not test_providers" tests