Add GitHub Actions test workflow and commit uv.lock

Run pytest on push/PR to main across Python 3.10-3.13 using the pinned
lockfile, plus a job that tests against the lowest allowed dependency
versions to catch range-compatibility breaks the lockfile would hide.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: shixish

.github/workflows/tests.yml

@@ -0,0 +1,47 @@
+name: Tests
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies (locked)
+        run: uv sync --frozen --extra dev
+
+      - name: Run tests
+        run: uv run pytest
+
+  # Catch breakage against the lowest dependency versions our ranges allow,
+  # which the pinned lockfile would otherwise hide.
+  test-lowest:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v5
+        with:
+          python-version: "3.10"
+
+      - name: Install lowest allowed dependencies
+        run: uv sync --resolution lowest-direct --extra dev
+
+      - name: Run tests
+        run: uv run pytest

.gitignore

@@ -3,7 +3,6 @@
 __pycache__
 .pytest_cache
 .env
-uv.lock
 dist/
 build/
 *.egg-info/