release(major): version 4.0

### New Features
- Introducing AI chart creation powered by D3.js  
- You can now import XLSX files natively  
- The charts library now includes a grid and list view for easier browsing  
- Added a new Elementor widget for displaying Visualizer charts  
- Improved auto-sync reliability by replacing WP-Cron with Action Scheduler  

### Improvements
- Cleaned up legacy block controls in the Block Editor  

### Bug Fixes
- Resolved an issue where lazy charts didn’t render when already in the viewport on page load  
- Fixed a fatal error on servers with broken FTP filesystem configuration  
- Addressed errors occurring in the getCSV method  
- Fixed an intermittent sidebar scroll issue in Chrome  
- Prevented a double clipboard alert when copying  
- Fixed a bubble chart crash on window resize when using named series in manual configuration

Author: HardeepAsrani

.distignore

@@ -32,4 +32,7 @@ phpstan-baseline.neon
 AGENTS.md
 .wp-env.json
 .claude
-
+skills
+classes/Visualizer/Gutenberg/src
+classes/Visualizer/ChartBuilder/src
+classes/Visualizer/D3Renderer/src

.github/ISSUE_TEMPLATE/agent_task.yml

@@ -0,0 +1,46 @@
+name: "Agent Task"
+description: "Structured task for coding agents"
+labels: ["agent"]
+body:
+  - type: textarea
+    id: goal
+    attributes:
+      label: Goal / Acceptance Criteria
+      description: "What does 'done' look like? Be specific."
+      placeholder: "Example: Update E2E docs to use npm run env:up/env:down and ensure credentials match bin/cli-setup.sh."
+    validations:
+      required: true
+
+  - type: textarea
+    id: constraints
+    attributes:
+      label: Constraints / Do Not Touch
+      description: "List files/areas to avoid or any guardrails."
+      placeholder: "Example: Do not edit build outputs directly; do not change vendor/ or node_modules/."
+    validations:
+      required: false
+
+  - type: textarea
+    id: relevant_files
+    attributes:
+      label: Relevant Files (if known)
+      description: "Optional: point the agent to likely files."
+      placeholder: "Example: tests/e2e/README.md, AGENTS.md"
+    validations:
+      required: false
+
+  - type: textarea
+    id: tests
+    attributes:
+      label: Tests to Run
+      description: "Default is PHPUnit + E2E unless explicitly scoped out."
+      value: |
+        Default:
+        - composer lint
+        - composer phpstan
+        - ./vendor/bin/phpunit
+        - npm run env:up
+        - npm run test:e2e:playwright
+        - npm run env:down
+    validations:
+      required: true

.github/workflows/build-dev-artifacts.yml

@@ -28,7 +28,16 @@ jobs:
         run: |
           composer install --no-dev --prefer-dist --no-progress
       - name: Create zip
-        run: npm run dist
+        run: |
+          npm ci
+          npm run gutenberg:build
+          npm run chartbuilder:build
+          npm run d3renderer:build
+          CURRENT_VERSION=$(node -p -e "require('./package.json').version")
+          COMMIT_HASH=$(git rev-parse --short HEAD)
+          DEV_VERSION="${CURRENT_VERSION}-dev.${COMMIT_HASH}"
+          npm run grunt version::${DEV_VERSION}
+          npm run dist
       - name: Retrieve branch name
         id: retrieve-branch-name
         run: echo "::set-output name=branch_name::$(REF=${GITHUB_HEAD_REF:-$GITHUB_REF} && echo ${REF#refs/heads/} | sed 's/\//-/g')"

.github/workflows/copilot-setup-steps.yml

@@ -0,0 +1,51 @@
+name: "Copilot Setup Steps"
+
+on:
+  workflow_dispatch:
+  push:
+    paths:
+      - .github/workflows/copilot-setup-steps.yml
+  pull_request:
+    paths:
+      - .github/workflows/copilot-setup-steps.yml
+
+jobs:
+  copilot-setup-steps:
+    runs-on: ubuntu-latest
+    services:
+      mysql:
+        image: mysql:5.7
+        env:
+          MYSQL_ROOT_PASSWORD: root
+        ports:
+          - 3306:3306
+        options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=3
+    permissions:
+      contents: read
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "18"
+          cache: "npm"
+
+      - name: Install JavaScript dependencies
+        run: npm ci
+
+      - name: Install Playwright browsers
+        run: npx playwright install --with-deps chromium
+
+      - name: Set up PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: "7.4"
+          extensions: simplexml, mysql
+
+      - name: Install PHP dependencies
+        run: composer install
+
+      - name: Pre-pull E2E Docker images
+        run: docker compose -f docker-compose.ci.yml pull

.github/workflows/create-tag.yml

@@ -11,7 +11,7 @@ jobs:
       matrix:
         node-version: [20.x]
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@v4
         with:
           persist-credentials: false
       - name: Build files using ${{ matrix.node-version }}

.github/workflows/deploy-wporg.yml

@@ -8,13 +8,16 @@ jobs:
     name: New version
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@v4
       - name: Get the version
         id: get_version
         run: echo ::set-output name=VERSION::${GITHUB_REF#refs/tags/}
       - name: Build
         run: |
           npm ci
+          npm run gutenberg:build
+          npm run chartbuilder:build
+          npm run d3renderer:build
           composer install --no-dev --prefer-dist --no-progress --no-suggest
       - name: WordPress Plugin Deploy
         uses: 10up/action-wordpress-plugin-deploy@master

.github/workflows/sync-branches.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ github.repository_owner == 'Codeinwp' }} #Disable on forks
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@v4
       - name: Retrieve branch name
         id: retrieve-branch-name
         run: echo "::set-output name=branch_name::$(REF=${GITHUB_HEAD_REF:-$GITHUB_REF} && echo ${REF#refs/heads/} | sed 's/\//-/g')"

.github/workflows/sync-wporg-assets.yml

@@ -14,7 +14,7 @@ jobs:
     if: "! contains(github.event.head_commit.message, 'chore(release)')"
     name: Push assets to wporg
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@v4
       - name: WordPress.org plugin asset/readme update
         uses: selul/action-wordpress-plugin-asset-update@develop
         env:

.github/workflows/test-e2e.yml

@@ -24,6 +24,9 @@ jobs:
       - name: Install npm deps
         run: |
           npm ci
+          npm run gutenberg:build
+          npm run chartbuilder:build
+          npm run d3renderer:build
           npm install -g playwright-cli
           npx playwright install --with-deps chromium
       - name: Install composer deps

.github/workflows/translations.yml

@@ -0,0 +1,45 @@
+name: Translations Diff
+
+on:
+  pull_request_review:
+  pull_request:
+    types: [opened, edited, synchronize, ready_for_review]
+    branches:
+      - development
+      - master
+
+jobs:
+  translation:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Base Branch
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.base_ref }}
+          path: visualizer-base
+      - name: Setup node 22
+        uses: actions/setup-node@v6
+        with:
+          node-version: 22.x
+      - name: Checkout PR Branch (Head)
+        uses: actions/checkout@v4
+        with:
+          path: visualizer-head
+      - name: Build POT for PR Branch
+        run: |
+          chmod +x ./visualizer-head/bin/make-pot.sh
+          ./visualizer-head/bin/make-pot.sh ./visualizer-head ./visualizer-head/languages/visualizer.pot
+          ls ./visualizer-head/languages/
+      - name: Build POT for Base Branch
+        run: |
+          ./visualizer-head/bin/make-pot.sh ./visualizer-base ./visualizer-base/languages/visualizer.pot
+          ls ./visualizer-base/languages/
+      - name: Compare POT files
+        uses: Codeinwp/action-i18n-string-reviewer@main
+        with:
+          fail-on-changes: "false"
+          openrouter-key: ${{ secrets.OPEN_ROUTER_API_KEY }}
+          openrouter-model: "google/gemini-2.5-flash"
+          base-pot-file: "visualizer-base/languages/visualizer.pot"
+          target-pot-file: "visualizer-head/languages/visualizer.pot"
+          github-token: ${{ secrets.BOT_TOKEN }}