fix(ci): adapt playwright config for docker

.github/workflows/main-docker.yml

@@ -82,7 +82,7 @@ jobs:
           require-healthy: true
 
       - name: Run Playwright tests
-        run: TRILIUM_DOCKER=1 npx playwright test
+        run: TRILIUM_DOCKER=1 TRILIUM_PORT=8082 npx playwright test
       - uses: actions/upload-artifact@v4
         if: ${{ !cancelled() }}
         with:

apps/server-e2e/playwright.config.ts

@@ -22,12 +22,12 @@ export default defineConfig({
     trace: 'on-first-retry',
   },
   /* Run your local dev server before starting the tests */
-  webServer: {
+  webServer: !process.env.TRILIUM_DOCKER ? {
     command: 'pnpm server:start-prod',
     url: baseURL,
     reuseExistingServer: !process.env.CI,
     cwd: workspaceRoot
-  },
+  } : undefined,
   projects: [
     {
       name: "chromium",