ci: cache pnpm store on release + centralize node version in .nvmrc (#1106)

Co-authored-by: Orca <help@stably.ai>

.github/workflows/e2e.yml

@@ -33,7 +33,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 24
+          node-version-file: .nvmrc
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4

.github/workflows/pr.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 24
+          node-version-file: .nvmrc
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4

.github/workflows/release-cut.yml

@@ -60,7 +60,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 24
+          node-version-file: .nvmrc
 
       - name: Configure git author
         run: |

.github/workflows/release-rc.yml

@@ -40,7 +40,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 24
+          node-version-file: .nvmrc
 
       - name: Configure git author
         run: |

.github/workflows/release.yml

@@ -104,16 +104,18 @@ jobs:
         with:
           ref: ${{ needs.resolve-release.outputs.ref }}
 
-      - name: Setup Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: 24
-
+      # pnpm must be on PATH before setup-node so setup-node can locate the store for caching.
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
         with:
           run_install: false
 
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version-file: .nvmrc
+          cache: pnpm
+
       # Why: pnpm install triggers electron's postinstall, which downloads the
       # Electron binary from GitHub release assets. GitHub's download CDN
       # occasionally returns 504s that fail the whole release. Retry on

.nvmrc

@@ -0,0 +1 @@
+24