ci(github): adds initial workflow files

.github/workflows/dispatch.yml

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+name: Dispatch Test
+
+on:
+  workflow_dispatch:
+
+permissions:
+  checks: write
+  contents: write
+  pull-requests: write
+
+env:
+  BRANCH_NAME: ${{ github.head_ref || github.ref_name }}
+  GH_TOKEN: ${{ github.token }}
+
+jobs:
+  sanity-test:
+    name: Test
+    uses: ./.github/workflows/sanity-test.yml
+    with:
+      REF: ${{ github.ref }}
+      TOKEN: $GH_TOKEN
+      BRANCH_NAME: $BRANCH_NAME

.github/workflows/pr.yml

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+name: Test
+
+on:
+  pull_request:
+
+permissions:
+  checks: write
+  contents: write
+  pull-requests: write
+
+env:
+  BRANCH_NAME: ${{ github.head_ref || github.ref_name }}
+
+jobs:
+  sanity-test:
+    name: Sanity Test
+    runs-on: ubuntu-latest
+    steps:
+    - uses: ./.github/workflows/sanity-test.yml
+      with:
+        REF: ${{github.event.pull_request.head.ref}}
+        BRANCH_NAME: $BRANCH_NAME

.github/workflows/sanity-test.yml

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+name: Sanity Tests
+
+on:
+  workflow_call:
+    inputs:
+      TOKEN:
+        required: true
+        type: string
+      BRANCH_NAME:
+        required: true
+        type: string
+      REF:
+        required: true
+        type: string
+      REPOSITORY:
+        required: false
+        type: string
+
+env:
+  BRANCH_NAME: ${{ github.head_ref || github.ref_name }}
+  NODE_VERSION: 20
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  sanity:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          token: ${{ inputs.TOKEN }}
+          fetch-depth: 0
+          ref: ${{ inputs.REF }}
+
+      - name: ⬢ Setup Node & Cache
+        uses: actions/setup-node@v3
+        with:
+          cache: "npm"
+          cache-dependency-path: package-lock.json
+
+      - name: ↧ Install
+        run: npm ci
+
+      - name: 🧪 Test
+        run: |
+          npm run sanity-test