docs: успешный тест nested-провайдера 5.1.2 на TEST-стенде

HISTORY/2026-07-16_nested_provider_test_success.md

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+# 2026-07-16 — Успешный тест nested-провайдера (5.1.2)
+
+## Результат
+PostgreSQL создан на TEST-стенде с nested HCL-блоками. Провайдер 5.1.2, registry `registry.kube5s.ru`.
+
+## Конфигурация (nubes_postgres.tf)
+```hcl
+resource "nubes_postgres" "npg" {
+  resource_name = "pgtst01"
+
+  startup_configuration = {
+    resource_realm = var.realm
+  }
+  cluster_configuration = {
+    cpu      = 500
+    memory   = 512
+    replicas = 1
+    disk     = 10
+  }
+  access_configuration = {
+    master_ip_space    = "no-needed"
+    master_access_list = jsonencode(["10.0.0.0/8"])
+    slave_ip_space     = "no-needed"
+    slave_access_list  = jsonencode([])
+  }
+  postgres_configuration = {
+    version       = "17"
+    ssl_required  = true
+    pooler_master = false
+    pooler_slave  = false
+  }
+  postgres_conf = jsonencode([{ param_name = "log_connections", param_value = "" }])
+  backup_configuration = {
+    s3_uid   = var.s3_uid
+    retain   = 14
+    schedule = "0 0 * * *"
+  }
+  autoscale_configuration = {
+    enabled  = false
+    schedule = 0
+    percent  = 10
+    quota    = 100
+  }
+}
+```
+
+## State после apply
+```
+nubes_postgres.npg
+nubes_postgres_database.pg_db_2
+nubes_postgres_user.pg_user_0
+nubes_s3bucket.bukka0
+```
+
+## Операции (все 201 OK)
+- create (#18) — 2 мин 16 сек
+- resume (#6) — восстановление после suspend
+- create_user × 3
+- create_database × 3
+- delete_user × 2
+- delete_database × 3
+- suspend
+
+## Версия
+5.1.2 (test), 2.1.0 (prod), 3.1.0 (dev)
+
+## Registry
+`registry.kube5s.ru` (kube5s.ru DNS → ingress 185.247.187.151)
+Сертификат: `registry-kube5s-tls` (Let's Encrypt)