ci: add python 3.15 and run lint and tests from one workflow (#17)

* ci: bump python to 3.15

Python 3.15.0 is out.

Co-Authored-By: Claude <svc-devxp-claude@slack-corp.com>

* ci: run lint and tests from one workflow

Replace ruff.yml and tests.yml with ci.yml (CI): a lint job and a test job, each per sample directory. The build job is now test.

Co-Authored-By: Claude <svc-devxp-claude@slack-corp.com>

---------

Co-authored-by: Claude <svc-devxp-claude@slack-corp.com>

Author: WilliamBergamin

.github/workflows/ci.yml

@@ -0,0 +1,64 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    strategy:
+      matrix:
+        directory:
+          - openai-agents-sdk
+    defaults:
+      run:
+        working-directory: ${{ matrix.directory }}
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+      - name: Set up Python
+        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
+        with:
+          python-version: "3.15"
+      - name: Install dependencies
+        run: |
+          pip install -U pip
+          pip install -r requirements.txt
+      - name: Lint and check formatting
+        run: |
+          ruff check .
+          ruff format --check .
+  test:
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    strategy:
+      matrix:
+        directory:
+          - openai-agents-sdk
+    defaults:
+      run:
+        working-directory: ${{ matrix.directory }}
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+      - name: Set up Python
+        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
+        with:
+          python-version: "3.15"
+      - name: Install dependencies
+        run: |
+          pip install -U pip
+          pip install -r requirements.txt
+          pip install ".[test]"
+      - name: Run all tests
+        run: |
+          pytest