feat: complete saleor core extensions app with React email templates

- Order confirmation, shipped, and cancelled email templates
- Uses @react-email/components for professional HTML emails
- Sends admin and customer notifications
- Integrates with Resend for email delivery
- Webhook handlers for ORDER_CREATED, ORDER_FULFILLED, ORDER_CANCELLED
- Docker image optimized for production
- Persistent auth data storage via PVC

.github/workflows/assign-pr.yml

@@ -0,0 +1,16 @@
+name: Assign PR to creator
+
+on:
+  pull_request:
+    types: [opened]
+
+jobs:
+  assign_creator:
+    runs-on: ubuntu-22.04
+    permissions:
+      pull-requests: write
+    steps:
+      - name: Assign PR to creator
+        uses: toshimaru/auto-author-assign@ebd30f10fb56e46eb0759a14951f36991426fed0 # v2.1.0
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/check-licenses.yaml

@@ -0,0 +1,48 @@
+name: Check Licenses
+on:
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      # Labels are needed to handle external contributors
+      - labeled
+      - unlabeled
+    paths:
+      # Self
+      - ".github/workflows/check-licenses.yaml"
+      # Python Ecosystem
+      - "**/pyproject.toml"
+      - "**/setup.py"
+      - "**/requirements*.txt"
+      - "**/Pipfile.lock"
+      - "**/poetry.lock"
+      # JS/TS Ecosystem
+      - "**/package.json"
+      - "**/pnpm-lock.yaml"
+      - "**/package-lock.json"
+
+jobs:
+  default:
+    permissions:
+      contents: read
+      pull-requests: write
+    uses: saleor/saleor-internal-actions/.github/workflows/run-license-check.yaml@v1
+    with:
+      # List of ecosystems to scan.
+      ecosystems: >-
+        python
+        javascript
+      # Grant rules (https://github.com/anchore/grant/blob/4362dc22cf5ea9baeccfa59b2863879afe0c30d7/README.md#usage)
+      rules: |
+        # Explicitly allow LGPL as "*GPL*" rule will cause to reject them otherwise.
+        - pattern: "*lgpl*"
+          name: "allow-lgpl"
+          mode: "allow"
+          reason: "LGPL is allowed."
+        - pattern: "*gpl*"
+          name: "deny-gpl"
+          mode: "deny"
+          reason: "GPL licenses are not compatible with BSD-3-Clause"
+        - pattern: "*proprietary*"
+          name: "deny-proprietary"
+          mode: "deny"

.github/workflows/main.yml

@@ -0,0 +1,29 @@
+name: QA
+on: [pull_request]
+jobs:
+  build:
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup PNPM
+        uses: pnpm/action-setup@fe02b34f77f8bc703788d5817da081398fad5dd2 # v4.0.0
+        with:
+          run_install: false
+      - uses: actions/setup-node@v4
+        with:
+          node-version-file: ".nvmrc"
+          cache: "pnpm"
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+      - name: Lint
+        run: pnpm lint
+      - name: Check types
+        run: pnpm check-types
+      - name: Check for changes in generated files
+        run: |
+          pnpm generate
+          git diff --name-status --exit-code .
+      - name: Test
+        run: pnpm test
+      - name: Build project
+        run: pnpm build

.github/workflows/manage-example-branches.yml

@@ -0,0 +1,25 @@
+# Branches with names starting with `example` are meant to be long living branches used as
+# documentation/usage example.
+# After accepting the branch, the main PR should be closed
+name: Example branch management
+
+on: pull_request
+
+jobs:
+  example-branches-checks:
+    if: ${{ startsWith(github.head_ref, 'example') }}
+    name: Checks
+    runs-on: ubuntu-22.04
+    permissions:
+      pull-requests: write
+    steps:
+      - uses: actions-ecosystem/action-add-labels@bd52874380e3909a1ac983768df6976535ece7f8 # v1.1.0
+        name: Set example label
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          labels: |
+            example
+      - name: Example branches are not meant to be merged
+        run: |
+          echo "Example branches are not meant to be merged"
+          exit 1