feat(tests): migrate to global "setups" system for test configuration

This PR refactors the integration test system from suite-specific "contexts" to global "setups".
This provides better separation of concerns: **suites = what to test, setups = how to configure.**

Key changes:
- New `tests/integration/setups.py` with global, reusable configurations (ollama, vllm, gpt, claude)
- Simplified `tests/integration/suites.py` to only define test collection roots + default setup references
- Updated CLI from `--context` to `--setup` parameter that works with any suite
- Modified `scripts/integration-tests.sh` to use `--test-setup` instead of `--test-context`
- Updated documentation to reflect the new global setup system

Benefits:
- Setups can be reused across multiple suites (e.g., use "gpt" with any suite)
- Clear separation between test selection (suites) and configuration (setups)
- Easier to add new configurations without modifying existing suites
- Centralized configuration management

Usage examples:
- `pytest tests/integration --suite=responses --setup=gpt`
- `pytest tests/integration --suite=vision --setup=ollama`
- `pytest tests/integration --suite=base --setup=vllm`

.github/actions/run-and-record-tests/action.yml

@@ -5,21 +5,22 @@ inputs:
   stack-config:
     description: 'Stack configuration to use'
     required: true
-  provider:
-    description: 'Provider to use for tests'
-    required: true
+  setup:
+    description: 'Setup to use for tests (e.g., ollama, gpt, vllm)'
+    required: false
+    default: ''
   inference-mode:
     description: 'Inference mode (record or replay)'
     required: true
-  test-suite:
+  suite:
     description: 'Test suite to use: base, responses, vision, etc.'
     required: false
     default: ''
-  test-subdirs:
-    description: 'Comma-separated list of test subdirectories to run; overrides test-suite'
+  subdirs:
+    description: 'Comma-separated list of test subdirectories to run; overrides suite'
     required: false
     default: ''
-  test-pattern:
+  pattern:
     description: 'Regex pattern to pass to pytest -k'
     required: false
     default: ''
@@ -37,14 +38,23 @@ runs:
     - name: Run Integration Tests
       shell: bash
       run: |
-        uv run --no-sync ./scripts/integration-tests.sh \
-          --stack-config '${{ inputs.stack-config }}' \
-          --provider '${{ inputs.provider }}' \
-          --test-subdirs '${{ inputs.test-subdirs }}' \
-          --test-pattern '${{ inputs.test-pattern }}' \
-          --inference-mode '${{ inputs.inference-mode }}' \
-          --test-suite '${{ inputs.test-suite }}' \
-          | tee pytest-${{ inputs.inference-mode }}.log
+        SCRIPT_ARGS="--stack-config '${{ inputs.stack-config }}' --inference-mode '${{ inputs.inference-mode }}'"
+
+        # Add optional arguments only if they are provided
+        if [ -n '${{ inputs.setup }}' ]; then
+          SCRIPT_ARGS="$SCRIPT_ARGS --setup '${{ inputs.setup }}'"
+        fi
+        if [ -n '${{ inputs.suite }}' ]; then
+          SCRIPT_ARGS="$SCRIPT_ARGS --suite '${{ inputs.suite }}'"
+        fi
+        if [ -n '${{ inputs.subdirs }}' ]; then
+          SCRIPT_ARGS="$SCRIPT_ARGS --subdirs '${{ inputs.subdirs }}'"
+        fi
+        if [ -n '${{ inputs.pattern }}' ]; then
+          SCRIPT_ARGS="$SCRIPT_ARGS --pattern '${{ inputs.pattern }}'"
+        fi
+
+        uv run --no-sync ./scripts/integration-tests.sh $SCRIPT_ARGS | tee pytest-${{ inputs.inference-mode }}.log
 
 
     - name: Commit and push recordings
@@ -58,7 +68,7 @@ runs:
           echo "New recordings detected, committing and pushing"
           git add tests/integration/recordings/
 
-          git commit -m "Recordings update from CI (test-suite: ${{ inputs.test-suite }})"
+          git commit -m "Recordings update from CI (suite: ${{ inputs.suite }})"
           git fetch origin ${{ github.ref_name }}
           git rebase origin/${{ github.ref_name }}
           echo "Rebased successfully"