ci: add workflow_dispatch for manual npm publish

Author: eduardbar

.github/workflows/publish.yml

@@ -6,6 +6,12 @@ on:
   push:
     tags:
       - 'v*'
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Tag version to publish (e.g., 0.2.0)'
+        required: true
+        type: string
 
 permissions:
   contents: read
@@ -16,6 +22,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event_name == 'workflow_dispatch' && format('refs/tags/v{0}', inputs.tag) || '' }}
 
       - name: Setup Node.js
         uses: actions/setup-node@v4
@@ -26,7 +34,11 @@ jobs:
 
       - name: Verify version matches tag
         run: |
-          TAG_VERSION="${GITHUB_REF#refs/tags/v}"
+          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
+            TAG_VERSION="${{ inputs.tag }}"
+          else
+            TAG_VERSION="${GITHUB_REF#refs/tags/v}"
+          fi
           PKG_VERSION=$(node -p "require('./package.json').version")
           if [ "$TAG_VERSION" != "$PKG_VERSION" ]; then
             echo "Error: Tag version ($TAG_VERSION) does not match package.json version ($PKG_VERSION)"