fix: update backend port mappings in e2e workflow and documentation

Author: Shchepotin

.github/workflows/e2e.yml

@@ -17,8 +17,6 @@ jobs:
           # token: ${{ secrets.CI_PAT }}
           path: backend
       - run: cd backend && cp env-example-document .env
-      - run: cd backend && sed -i 's/APP_PORT=3000/APP_PORT=3001/g' .env
-      - run: cd backend && sed -i 's/BACKEND_DOMAIN=http:\/\/localhost:3000/BACKEND_DOMAIN=http:\/\/localhost:3001/g' .env
       - name: Run backend
         # print output of the command to file and store it as artifact
         run: cd backend && docker compose -f docker-compose.document.yaml up > ${{ runner.temp }}/backend.log 2>&1 &

playwright-tests/generators/README.md

@@ -78,7 +78,7 @@ npm run test:e2e:generators:crud
 
 ### How it works
 
-1. **Backend boot** (`run-crud.sh`): generates a matching `Tag` entity on the NestJS side, lints + builds, then `docker compose up -d --build` against `docker-compose.generators-relational.test.yaml` which now maps host:3001 → container:3000.
+1. **Backend boot** (`run-crud.sh`): generates a matching `Tag` entity on the NestJS side, lints + builds, then `docker compose up -d --build` against `docker-compose.generators-relational.test.yaml` which now maps host:3001 → container:3001.
 2. **Frontend generate**: runs `generate:resource` + `generate:field` for `Tag` in this repo.
 3. **Playwright** (`playwright.config.generators-crud.ts`): boots Next.js via its `webServer` block at `http://localhost:3000`, then drives `generators-crud.spec.ts` (admin login + Tag CRUD).
 4. **Cleanup**: `docker compose down -v`, `git checkout -- src` + targeted `rm`s in both repos, generated TypeORM migration files removed.

playwright-tests/generators/run-crud.sh

@@ -90,7 +90,7 @@ npm run add:property:to-relational -- --name Tag --property name --kind primitiv
 npm run lint
 npm run build
 
-echo "▶ Booting NestJS Docker stack (host port $HOST_API_PORT → container 3000)…"
+echo "▶ Booting NestJS Docker stack (host port $HOST_API_PORT → container 3001)…"
 docker compose -f "$COMPOSE_FILE" --env-file env-example-relational -p "$COMPOSE_PROJECT" up -d --build
 
 echo "▶ Waiting for backend to accept HTTP on http://127.0.0.1:$HOST_API_PORT/ …"