ci: stage the packages to npmjs on version tags through trusted publishing

.github/workflows/publish.yml

@@ -0,0 +1,55 @@
+# Stages every @crudy/restloom* package to npmjs on version tags
+# (v<major>.<minor>.<patch>) through npm trusted publishing: GitHub's OIDC
+# token stands in for an npm token, and npm attaches a provenance statement
+# naming this repository and commit. A staged version goes live once a
+# maintainer approves it with 2FA (npm stage approve, or npmjs.com). The
+# organisation only allows its own actions, so checkout and Node setup are
+# plain shell. The core goes first: every other package depends on it.
+name: publish
+
+on:
+  push:
+    tags: ['v*']
+
+permissions:
+  contents: read
+  id-token: write
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    env:
+      NODE_VERSION: v24.12.0
+    steps:
+      - name: Check out the tag
+        run: |
+          case "$GITHUB_REF_NAME" in v[0-9]*.[0-9]*.[0-9]*) ;; *) echo "not a version tag: $GITHUB_REF_NAME" >&2; exit 1 ;; esac
+          git init -q .
+          git fetch -q --depth 1 "https://github.com/$GITHUB_REPOSITORY" "refs/tags/$GITHUB_REF_NAME:refs/tags/$GITHUB_REF_NAME"
+          git checkout -q "refs/tags/$GITHUB_REF_NAME"
+      - name: Install Node
+        run: |
+          base="https://nodejs.org/dist/$NODE_VERSION"
+          file="node-$NODE_VERSION-linux-x64.tar.xz"
+          curl -fsSLO "$base/$file"
+          curl -fsSL "$base/SHASUMS256.txt" | grep " $file\$" | sha256sum -c -
+          mkdir -p "$RUNNER_TEMP/node"
+          tar -xJf "$file" -C "$RUNNER_TEMP/node" --strip-components=1
+          rm "$file"
+          echo "$RUNNER_TEMP/node/bin" >> "$GITHUB_PATH"
+      - name: Install npm with staged publishing
+        run: npm install -g npm@11.21.1
+      - run: npm ci --no-audit --no-fund
+      - run: npm test
+      - name: Publish
+        run: |
+          for dir in core postgres mysql mssql sqlite fastify express; do
+            NAME=$(node -p "require('./packages/$dir/package.json').name")
+            VERSION=$(node -p "require('./packages/$dir/package.json').version")
+            [ "v$VERSION" = "$GITHUB_REF_NAME" ] || { echo "tag $GITHUB_REF_NAME does not match $NAME $VERSION" >&2; exit 1; }
+            if npm view "$NAME@$VERSION" version >/dev/null 2>&1; then
+              echo "$NAME@$VERSION is already published"
+            else
+              (cd "packages/$dir" && npm stage publish)
+            fi
+          done