chore: import upstream snapshot with attribution

.github/actions/install-dependencies/action.yml

@@ -0,0 +1,62 @@
+name: "Install Dependencies"
+description: "Install dependencies, fetching from cache when possible"
+inputs:
+  # We run all jobs on Node.js 22 by default, as this is the most stable and supported version right now.
+  #
+  # Pinned to 22.23.1 (rather than floating `22`) until it's safe to float back:
+  # Node 22.23.0 regressed node-fetch@2 keep-alive responses with
+  # ERR_STREAM_PREMATURE_CLOSE (nodejs/node#63989, fixed in 22.23.1).
+  node-version:
+    description: the version of Node.js to install
+    default: 22.23.1
+  turbo-api:
+    description: the api URL for connecting to the turbo remote cache
+  turbo-team:
+    description: the team identifier for connecting to the turbo remote cache
+  turbo-token:
+    description: the api token for connecting to the turbo remote cache
+  turbo-signature:
+    description: the cache signature key for connecting to the turbo remote cache
+  disable-cache:
+    description: when "true", skip the pnpm store cache on setup-node (defense in depth for release builds)
+    default: "false"
+runs:
+  using: "composite"
+  steps:
+    - name: Install pnpm
+      uses: pnpm/action-setup@0ebf47130e4866e96fce0953f49152a61190b271 # v6.0.9
+
+    - name: Install Node.js ${{ inputs.node-version }} (with pnpm cache)
+      if: inputs.disable-cache != 'true'
+      uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+      with:
+        node-version: ${{ inputs.node-version }}
+        cache: "pnpm"
+        registry-url: "https://registry.npmjs.org"
+
+    - name: Install Node.js ${{ inputs.node-version }} (without pnpm cache)
+      if: inputs.disable-cache == 'true'
+      uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+      with:
+        node-version: ${{ inputs.node-version }}
+        registry-url: "https://registry.npmjs.org"
+
+    # Enable node compile cache (effective for Node 22+)
+    # See https://nodejs.org/docs/v24.11.1/api/module.html#module-compile-cache
+    - name: Enable Node Compile Cache
+      shell: bash
+      run: echo "NODE_COMPILE_CACHE=$HOME/.node_compile_cache" >> $GITHUB_ENV
+
+    - name: "Configure turbo repo cache environment variables"
+      if: inputs.turbo-api
+      shell: bash
+      run: |
+        echo "TURBO_API=${{ inputs.turbo-api }}" >> $GITHUB_ENV
+        echo "TURBO_TEAM=${{ inputs.turbo-team }}" >> $GITHUB_ENV
+        echo "TURBO_TOKEN=${{ inputs.turbo-token }}" >> $GITHUB_ENV
+        echo "TURBO_REMOTE_CACHE_SIGNATURE_KEY=${{ inputs.turbo-signature }}" >> $GITHUB_ENV
+        echo "TURBO_ENV_MODE=loose" >> $GITHUB_ENV
+
+    - name: Install NPM Dependencies
+      shell: bash
+      run: pnpm install --frozen-lockfile