feat(ci): add cross-platform E2E workflow and remove old CI

Add a new GitHub Actions workflow "Cross-Platform E2E Tests" that runs
end-to-end tests on linux, macOS, and Windows using a matrix job.
The workflow checks out code, sets up Node.js 22 with npm cache,
installs deps, builds the backend, installs Playwright browsers, and
runs the electron-backend-e2e suite (using xvfb on Linux). Failed
test artifacts (Playwright report) are uploaded per OS for 7 days.

Remove the previous monolithic 'Build and Test' workflow which included
unit tests, coverage upload, and an older E2E configuration. This
consolidates E2E across platforms into a focused, cross-platform job
and simplifies the CI surface by deprecating the outdated workflow.

.github/workflows/build-and-test.yaml

@@ -1,89 +0,0 @@
-name: 'Build and Test'
-
-on:
-    push:
-        branches:
-            - master
-    pull_request:
-        branches:
-            - master
-
-jobs:
-    build-and-test:
-        runs-on: ubuntu-latest
-
-        steps:
-            - uses: actions/checkout@v4
-              with:
-                  persist-credentials: false
-            - name: Use Node.js
-              uses: actions/setup-node@v4
-              with:
-                  node-version: '22'
-            - run: git config --global url."https://${{ secrets.PAT }}@github.com/".insteadOf ssh://git@github.com/
-            - run: npm ci
-            - run: npm test -- --coverage
-            - run: bash <(curl -s https://codecov.io/bash)
-            - run: npm run build:prod
-              env:
-                  CI: true
-    e2e-tests:
-        runs-on: ${{ matrix.os }}
-
-        strategy:
-            matrix:
-                os: [macos-latest]
-
-        steps:
-            - uses: actions/checkout@v4
-              with:
-                  persist-credentials: false
-            - name: Use Node.js
-              uses: actions/setup-node@v4
-              with:
-                  node-version: '22'
-            - run: git config --global url."https://${{ secrets.PAT }}@github.com/".insteadOf ssh://git@github.com/
-            - run: npm ci
-            #  env:
-            #      PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: 1
-            - run: npm run build:prod
-            - run: npx playwright install --with-deps
-            #- run: xvfb-run --auto-servernum --server-args="-screen 0 1280x960x24" -- npm run e2e:ci
-            #  if: matrix.os == 'ubuntu-latest'
-            #  env:
-            #    e2e: true
-            - run: npm run e2e:ci
-              env:
-                  e2e: true
-    # release:
-    #     needs: [build-and-test]
-    #     runs-on: ${{ matrix.os }}
-
-    #     strategy:
-    #         matrix:
-    #             os: [macos-latest, ubuntu-latest, windows-latest]
-
-    #     steps:
-    #         - name: Check out Git repository
-    #           uses: actions/checkout@v4
-
-    #         - name: Install Node.js, NPM and Yarn
-    #           uses: actions/setup-node@v4
-    #           with:
-    #               node-version: '22'
-
-    #         - name: Build Electron app
-    #           uses: samuelmeuli/action-electron-builder@v1
-    #           with:
-    #               # GitHub token, automatically provided to the action
-    #               # (No need to define this secret in the repo settings)
-    #               github_token: ${{ secrets.github_token }}
-
-    #               # If the commit is tagged with a version (e.g. "v1.0.0"),
-    #               # release the app after building
-    #               release: ${{ startsWith(github.ref, 'refs/tags/v') }}
-    #         #- name: Archive production artifacts
-    #         #  uses: actions/upload-artifact@v3
-    #         #  with:
-    #         #      name: dev-release
-    #         #      path: ./release/**

.github/workflows/e2e-tests.yaml

@@ -0,0 +1,63 @@
+name: 'Cross-Platform E2E Tests'
+
+on:
+  push:
+    branches:
+      - nx
+  pull_request:
+    branches:
+      - nx
+
+jobs:
+  e2e-tests:
+    name: E2E on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    env:
+      NX_SKIP_NX_CACHE: true
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+        with:
+            version: 10
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+            node-version: '22'
+            cache: 'pnpm'
+
+      - name: Install Dependencies
+        run: pnpm install  
+
+      - name: Build Backend
+        run: npx nx build electron-backend
+
+      - name: Install Playwright Browsers
+        run: npx playwright install --with-deps
+
+      - name: Run E2E Tests (Linux)
+        if: runner.os == 'Linux'
+        run: xvfb-run --auto-servernum --server-args="-screen 0 1280x960x24" npx nx run electron-backend-e2e:e2e
+        env:
+          CI: true
+
+      - name: Run E2E Tests (Windows/Mac)
+        if: runner.os != 'Linux'
+        run: npx nx run electron-backend-e2e:e2e
+        env:
+          CI: true
+
+      - name: Upload Test Results
+        if: failure()
+        uses: actions/upload-artifact@v4
+        with:
+          name: playwright-report-${{ matrix.os }}
+          path: dist/playwright-report/electron-backend-e2e/
+          retention-days: 7