docs: sync from backend cab0719 - align request budget validation

01 - Architecture/Infrastructure.md

@@ -107,7 +107,7 @@ The Nginx proxy at `./nginx/nginx.conf` (mounted read-only) is responsible for:
 Both `nickapp-backend` and `nickapp-frontend` carry the `watchtower.enable=true` label. Watchtower polls the container registry on its configured interval and re-pulls when the `latest` tag moves.
 
 Release cycle:
-1. Developer pushes commits to a feature branch → merged into `development`.
+1. Developer pushes commits to a feature branch → merged into the active integration branch (`integrate-main-into-development` for the current dev stack; historically `development`).
 2. Manual Gitea workflow `docker-build-simple.yml` builds & pushes `nickapp-backend:latest` (and a versioned tag) to `git.manko.yoga/manawenuz/escrow-backend`.
 3. Within the next poll interval (default 5 min) Watchtower restarts the affected service.
 
@@ -121,6 +121,7 @@ Release cycle:
 | Volume | What it stores | Backup priority |
 |---|---|---|
 | `mongodb_data` | All business data (users, requests, payments, chats, disputes...) | **Critical** — daily dump |
+| `postgres_data` | Postgres 18 migration/backfill store and `payment_quotes` when enabled | **Critical after cutover; medium before cutover** — dump before/after migrations |
 | `redis_data` | Cache, session, rate counters | Low — losing it logs everyone out but no data loss |
 | `./uploads` (host bind) | Avatars, product images, dispute evidence, documents | **High** — daily rsync |
 | `./nginx/logs` | Access / error logs | Medium |