refactor: restructure project — separate tools, config, generated, provider

TOOLS/        — generators + scripts + config + ARCHITECTURE.md
  ├── yaml-generator/    (code)
  ├── resource-generator/ (code)
  ├── docs-generator/    (code)
  ├── scripts/           (← devops/*.sh)
  ├── config/            (← devops/profiles/ + devops/config/)
  │   ├── test/          profile.env, services_list.txt, operation_timeouts.json
  │   ├── prod/
  │   └── dev/
  └── ARCHITECTURE.md    (← devops/ARCHITECTURE.md)

generated/    — pipeline output only (gitignored)
  ├── test/resources_yaml/, go/, docs/, provider_build/
  ├── prod/
  └── dev/

provider/     — code only, no generated files
  resources_yaml/        — DELETED (generated)
  internal/resources_gen/ — DELETED (generated)

devops/       — removed (replaced by TOOLS/scripts + TOOLS/config + generated/)

Generators now fail if NUBES_*_DIR not set (no defaults to provider/).
Provider requires pipeline to populate resources_gen/ before build.

generated/test/docs/postgres_params_modify.md

@@ -0,0 +1,20 @@
+# Resource nubes_postgres
+
+Service ID: `90`
+
+Service Name: PostgreSQL
+
+[Manual](postgres.md) | [Create params](postgres_params_create.md) | [Modify params](postgres_params_modify.md) | [Output params](postgres_outputs.md) | [Operations](postgres_ops.md) | [Example](postgres_example.md)
+
+## Modify params
+
+<table class="resource-table resource-table-compact">
+<thead><tr><th>ID</th><th>Code</th><th>Type</th><th>Description</th><th>Constraints</th></tr></thead>
+<tbody>
+<tr><td>795</td><td><strong><code class="code-no-wrap">cluster_configuration</code></strong></td><td><code>map-fixed</code></td><td></td><td></td></tr>
+<tr><td>796</td><td><strong><code class="code-no-wrap">access_configuration</code></strong></td><td><code>map-fixed</code></td><td></td><td></td></tr>
+<tr><td>797</td><td><strong><code class="code-no-wrap">postgres_configuration</code></strong></td><td><code>map-fixed</code></td><td></td><td></td></tr>
+<tr><td>798</td><td><strong><code class="code-no-wrap">postgres_conf</code></strong></td><td><code>array-map-fixed</code></td><td></td><td></td></tr>
+<tr><td>799</td><td><strong><code class="code-no-wrap">backup_configuration</code></strong></td><td><code>map-fixed</code></td><td></td><td></td></tr>
+<tr><td>800</td><td><strong><code class="code-no-wrap">autoscale_configuration</code></strong></td><td><code>map-fixed</code></td><td></td><td></td></tr>
+</tbody></table>