Add automated CI to lint and test the project (#5) (Closes: #4)

.github/pull_request_template.md

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+<!-- Please remove any superfluous sections before submitting the pull request! -->
+
+### Summary
+
+Please summarize the changes of this PR, starting with _why_ the PR is needed.
+
+---
+
+### PR checklist
+
+- [ ] I have written tests that fail without my changes. _Or I did not add them on purpose._
+- [ ] I have included instructions on how to test this, assuming they are not already apparent from the linked issue.
+
+---
+
+### Depends on
+
+<!-- Links/references to other PRs this PR depends on -->
+- [ ] Depends on #0
+
+### Closes/Fixes/Related to
+
+<!-- Links/references to issues this PR addresses. See https://help.github.com/en/github/managing-your-work-on-github/closing-issues-using-keywords for more info. -->
+* Fixes #0 <!-- If #0 is a bug issue -->
+* Closes #0 <!-- If #0 is an enhancement issue -->
+* Related to #0 <!-- List any issues which are not closed by this PR, but which this PR is related to here -->

.github/workflows/ci.yml

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+name: ci
+run-name: ci
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Install uv
+        uses: astral-sh/setup-uv@v3
+      - name: Install Python
+        run: uv python install
+      - name: Install dependencies
+        run: uv sync --all-extras --dev
+      - name: Lint everything
+        run: uvx tomlscript lint
+
+  run-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Install uv
+        uses: astral-sh/setup-uv@v3
+      - name: Install Python
+        run: uv python install
+      - name: Install dependencies
+        run: uv sync --all-extras --dev
+      - name: Run tests
+        run: uvx tomlscript test