Fix deploy: remove wrangler from dashboard deps, install v4 in CI

@sveltejs/adapter-cloudflare@4.x declares a peer dep on wrangler@^3;
having wrangler@^4 in devDependencies caused an ERESOLVE conflict on
npm ci. Remove it from package.json and install wrangler@^4 globally
as a dedicated CI step before the deploy, keeping peer deps clean.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: tbjers

.github/workflows/deploy-dashboard.yml

@@ -33,6 +33,9 @@ jobs:
         working-directory: dashboard
         run: npm ci
 
+      - name: Install wrangler
+        run: npm install -g wrangler@^4
+
       - name: Build
         working-directory: dashboard
         run: npm run build
@@ -41,7 +44,7 @@ jobs:
         id: deploy
         working-directory: dashboard
         run: |
-          OUTPUT=$(node_modules/.bin/wrangler pages deploy \
+          OUTPUT=$(wrangler pages deploy \
             ${{ github.ref != 'refs/heads/main' && format('--branch {0}', github.head_ref || github.ref_name) || '' }})
           echo "$OUTPUT"
           URL=$(echo "$OUTPUT" | grep -oP 'https://[^\s]+\.pages\.dev[^\s]*' | tail -1)