fix: add missing test tags to prevent CI failures

- Add @moduletag :requires_service and :local_only to ModelManagementTest
  as it calls Models.list_all() which attempts to connect to all providers
- This prevents Ollama connection attempts during CI pipeline tests

🤖 Generated with [Claude Code](https://claude.ai/code)

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

Author: azmaveth

test/ex_llm/infrastructure/ollama_model_registry_test.exs

@@ -3,6 +3,9 @@ defmodule ExLLM.Infrastructure.OllamaModelRegistryTest do
 
   alias ExLLM.Infrastructure.OllamaModelRegistry
 
+  @moduletag :requires_service
+  @moduletag provider: :ollama
+
   setup do
     # Clear cache before each test
     OllamaModelRegistry.clear_cache()

test/ex_llm/model_management_test.exs

@@ -8,6 +8,10 @@ defmodule ExLLM.ModelManagementTest do
 
   use ExUnit.Case, async: true
 
+  # This test module calls Models.list_all() which attempts to connect to all providers
+  @moduletag :requires_service
+  @moduletag :local_only
+
   alias ExLLM.Core.Models
 
   describe "model listing and discovery" do

test/ex_llm/oauth2_test.exs

@@ -11,6 +11,9 @@ defmodule ExLLM.OAuth2Test do
   providers and handles various error scenarios appropriately.
   """
 
+  @moduletag :oauth2
+  @moduletag :requires_oauth
+
   describe "OAuth2 provider support" do
     test "lists supported providers" do
       providers = Helper.supported_providers()