Add CI workflow for import and compile checks

Verifies the package installs and imports correctly on push to main and PRs.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: jasperdew

.github/workflows/test.yml

@@ -0,0 +1,27 @@
+name: Lint & Check
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+
+      - name: Install package
+        run: pip install -e .
+
+      - name: Check imports
+        run: python -c "import langbly; print(f'langbly {langbly.__version__} imported successfully')"
+
+      - name: Compile check
+        run: python -m py_compile src/langbly/__init__.py && python -m py_compile src/langbly/client.py