fix: exclude local provider tests from CI pipeline

- Add exclusions for :requires_service tag (Ollama, LM Studio)
- Add exclusions for :local_only tag (Bumblebee)
- Update CI exclusions in both mix.exs and centralized config
- Document the :local_only tag in test categories

This prevents CI failures when local services (Ollama, LM Studio) are not running
and when Bumblebee models are not downloaded, ensuring CI runs only truly
portable tests.

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

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

Author: azmaveth

lib/ex_llm/testing/config.ex

@@ -35,6 +35,7 @@ defmodule ExLLM.Testing.Config do
   - `:requires_oauth` - Tests needing OAuth2 authentication
   - `:requires_service` - Tests needing local services (Ollama, LM Studio)
   - `:requires_resource` - Tests needing specific resources (tuned models, etc.)
+  - `:local_only` - Tests that can only run with local models (Bumblebee)
   """
 
   @doc """
@@ -123,7 +124,9 @@ defmodule ExLLM.Testing.Config do
       requires_api_key: true,
       integration: true,
       external: true,
-      live_api: true
+      live_api: true,
+      requires_service: true,
+      local_only: true
     ]
   end
 

mix.exs

@@ -227,7 +227,7 @@ defmodule ExLLM.MixProject do
 
       # CI/CD pipeline tests
       "test.ci": [
-        "test --exclude wip --exclude flaky --exclude quota_sensitive --exclude very_slow --exclude requires_api_key --exclude integration --exclude external --exclude live_api"
+        "test --exclude wip --exclude flaky --exclude quota_sensitive --exclude very_slow --exclude requires_api_key --exclude integration --exclude external --exclude live_api --exclude requires_service --exclude local_only"
       ],
 
       # === CACHE MANAGEMENT ===