feat(tests): migrate to global "setups" system for test configuration (#3390)

This PR refactors the integration test system to use global "setups"
which provides better separation of concerns:

**suites = what to test, setups = how to configure.**

NOTE: if you naming suggestions, please provide feedback

Changes:
- New `tests/integration/setups.py` with global, reusable configurations
(ollama, vllm, gpt, claude)
- Modified `scripts/integration-tests.sh` options to match with the
underlying pytest options
    - Updated documentation to reflect the new global setup system

The main benefit is that setups can be reused across multiple suites
(e.g., use "gpt" with any suite) even though sometimes they could
specifically tailored for a suite (vision <> ollama-vision). It is now
easier to add new configurations without modifying existing suites.

Usage examples:
    - `pytest tests/integration --suite=responses --setup=gpt`
- `pytest tests/integration --suite=vision` # auto-selects
"ollama-vision" setup
    - `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"

.github/actions/setup-ollama/action.yml

@@ -1,7 +1,7 @@
 name: Setup Ollama
 description: Start Ollama
 inputs:
-  test-suite:
+  suite:
     description: 'Test suite to use: base, responses, vision, etc.'
     required: false
     default: ''
@@ -11,7 +11,7 @@ runs:
     - name: Start Ollama
       shell: bash
       run: |
-        if [ "${{ inputs.test-suite }}" == "vision" ]; then
+        if [ "${{ inputs.suite }}" == "vision" ]; then
           image="ollama-with-vision-model"
         else
           image="ollama-with-models"

.github/actions/setup-test-environment/action.yml

@@ -8,11 +8,11 @@ inputs:
   client-version:
     description: 'Client version (latest or published)'
     required: true
-  provider:
-    description: 'Provider to setup (ollama or vllm)'
-    required: true
+  setup:
+    description: 'Setup to configure (ollama, vllm, gpt, etc.)'
+    required: false
     default: 'ollama'
-  test-suite:
+  suite:
     description: 'Test suite to use: base, responses, vision, etc.'
     required: false
     default: ''
@@ -30,13 +30,13 @@ runs:
         client-version: ${{ inputs.client-version }}
 
     - name: Setup ollama
-      if: ${{ inputs.provider == 'ollama' && inputs.inference-mode == 'record' }}
+      if: ${{ (inputs.setup == 'ollama' || inputs.setup == 'ollama-vision') && inputs.inference-mode == 'record' }}
       uses: ./.github/actions/setup-ollama
       with:
-        test-suite: ${{ inputs.test-suite }}
+        suite: ${{ inputs.suite }}
 
     - name: Setup vllm
-      if: ${{ inputs.provider == 'vllm' && inputs.inference-mode == 'record' }}
+      if: ${{ inputs.setup == 'vllm' && inputs.inference-mode == 'record' }}
       uses: ./.github/actions/setup-vllm
 
     - name: Build Llama Stack