Add dynamic npm tagging to Azure DevOps pipeline

- Extract version from package.json in tarball during publish
- Automatically determine npm tag based on version string:
  - *alpha* → alpha tag
  - *beta* → beta tag
  - *rc* → rc tag
  - otherwise → latest tag
- Update display name to reflect dynamic tagging behavior

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: Phil Whittaker

build/azure-pipelines.yml

@@ -71,8 +71,25 @@ stages:
             # Setup temp npm project to load in defaults from the local .npmrc
             npm init -y
 
-            # Find the first .tgz file in the current directory and publish it
+            # Find the first .tgz file in the current directory
             files=( ./*.tgz )
-            npm publish "${files[0]}"
-          displayName: Push to npm
+
+            # Extract version from package.json in the tarball
+            tar -tf "${files[0]}" | grep package/package.json | head -1 | xargs tar -xf "${files[0]}" --strip-components=1
+            version=$(node -p "require('./package.json').version")
+
+            # Determine tag based on version
+            if [[ "${version}" == *"alpha"* ]]; then
+              tag="alpha"
+            elif [[ "${version}" == *"beta"* ]]; then
+              tag="beta"
+            elif [[ "${version}" == *"rc"* ]]; then
+              tag="rc"
+            else
+              tag="latest"
+            fi
+
+            echo "Publishing version ${version} with tag ${tag}"
+            npm publish "${files[0]}" --tag $tag
+          displayName: Push to npm with dynamic tagging
           workingDirectory: $(Pipeline.Workspace)/npm-package