chore(infra): add AI flyer parsing configuration and retry logic

- Add FLYER_AI_TIMEOUT_MS and FLYER_AI_RETRIES environment variables
- Configure timeout and retry settings in compose.yml
- Update AiFlyerParserService with configurable timeout and retry logic
- Add text window reduction strategy for retry attempts
- Update documentation in TEKNISK_BESKRIVNING.md
- Fix ESLint configuration in app.security.spec.ts

compose.yml

@@ -10,6 +10,8 @@ services:
       NODE_ENV: "production"
       DATABASE_URL: "mysql://root:${MARIADB_ROOT_PASSWORD}@recipe-db:3306/${MARIADB_DATABASE}"
       MISTRAL_API_KEY: "${MISTRAL_API_KEY:-}"
+      FLYER_AI_TIMEOUT_MS: "${FLYER_AI_TIMEOUT_MS:-30000}"
+      FLYER_AI_RETRIES: "${FLYER_AI_RETRIES:-2}"
       JWT_SECRET: "${JWT_SECRET}"
       ALLOWED_ORIGIN: "${NEXT_PUBLIC_APP_URL}"
       ADMIN_NADMIN_PASSWORD: "${ADMIN_NADMIN_PASSWORD}"