visualization: Add CI

.github/workflows/lint.yml

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+name: Prettier Code Formatter
+
+# Controls when the action will run. Triggers the workflow on push or pull
+# request events
+on: [push, pull_request]
+
+jobs:
+  prettier:
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-22.04
+            node_version: 20
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '${{ matrix.node_version }}'
+
+      - name: Cache pnpm modules
+        id: cache-pnpm-modules
+        uses: actions/cache@v4
+        with:
+          path: oasis_visualization/node_modules
+          key: ${{ runner.os }}-${{ matrix.node_version }}-pnpm-${{ hashFiles('oasis_visualization/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-${{ matrix.node_version }}-pnpm-
+
+      - name: Install pnpm
+        run: npm install -g pnpm
+
+      - name: Install dependencies
+        if: steps.cache-pnpm-modules.outputs.cache-hit != 'true'
+        run: pnpm install
+        working-directory: oasis_visualization
+
+      - name: Run linter
+        run: pnpm run lint
+        working-directory: oasis_visualization

oasis_visualization/.gitignore

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+/node_modules

oasis_visualization/.prettierignore

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+/node_modules
+/pnpm-lock.yaml

oasis_visualization/.prettierrc

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+{
+  "tabWidth": 2
+}

oasis_visualization/package.json

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+{
+  "name": "oasis-visualization",
+  "scripts": {
+    "format": "prettier --write .",
+    "lint": "prettier --check ."
+  },
+  "devDependencies": {
+    "prettier": "^3.2.5"
+  }
+}