remove legacy serv_spa (yalarba Vue SPA)

- Deleted main_dc/yalarba/serv_spa/ directory
- No docker-compose.yml changes needed (service was already unused)
- Updated docs references to point to yalarba-nuxt
- docker-compose.yml and nginx configs had no references to serv_spa

AGENTS.md

@@ -18,7 +18,7 @@ main_dc/
   yalarba/api_es/           -- Go REST API (GORM+Chi), port 8088, DB: db (5432)
   yalarba/api_yal/          -- Go REST API (GORM+Chi), port 8787, DB: db (5432)
   yalarba/easySite/easySite/ -- Nuxt 4 SPA for easysite102.ru
-  yalarba/serv_spa/spa/vue/  -- Vue 3 + Vite SPA for yalarba.ru
+  yalarba/yalarba-nuxt/      -- Nuxt 4 SPA for yalarba.ru
   valitovgaziz/analytics/   -- Node.js (Express) analytics server, port 9999
   valitovgaziz/html/         -- static HTML for valitovgaziz.ru
   nginx/                    -- nginx with automatic HTTP↔HTTPS switching
@@ -47,7 +47,7 @@ cd main_dc/BB/bbvue && npm run dev      # Vite dev server
 cd main_dc/BB/bbvue && npm run lint     # ESLint --fix
 cd main_dc/BB/bbvue && npm run format   # Prettier --write src/
 
-cd main_dc/yalarba/serv_spa/spa/vue && npm run dev   # Vite dev (yalarba SPA)
+# serv_spa удалён — yalarba работает через yalarba-nuxt (Nuxt SSR)
 
 cd main_dc/yalarba/easySite/easySite && npm run dev  # Nuxt dev
 cd main_dc/yalarba/easySite/easySite && npm run build # Nuxt build
@@ -56,7 +56,7 @@ cd main_dc/yalarba/easySite/easySite && npm run build # Nuxt build
 ## Service quirks
 
 - **Nginx SSL**: `switch-config.sh` is all-or-nothing — HTTPS only activates when *every* domain has a cert. Until then, SSL port redirects back to HTTP.
-- **`yalarba/serv_spa/spa/`**: Dockerfile is incomplete (build stage only, no runtime). The `spa/vue/` package.json includes express/pg deps despite being a Vite SPA — likely unused or legacy. The nginx compose mounts `yalarba/serv_spa/spa/vue/dist`.
+- **`yalarba/serv_spa/`**: удалён — был legacy Vue SPA, не использовался.
 - **`api_yal`** is the only container that runs as non-root. Runs on port 8787.
 - **`api_es`** port is configurable via `API_ES_APP_PORT` in `.env` (default 8088). All other API ports are hardcoded.
 - **Databases**: `db` (port 5432) is shared between api_tp, api_es, api_yal. `db_bb` (port 5433) is dedicated to api_bb.