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.

.gitignore

@@ -5,9 +5,11 @@
 *.tfvars
 .terraform.lock.hcl
 
-# === Generated docs (by stand — NEVER commit, regenerate from API) ===
-docs_gen/
-universal_rebuild/docs_gen/
+# === Generated files (NOT code — regenerate from API) ===
+provider/resources_yaml/
+provider/internal/resources_gen/
+generated/
+TOOLS/bin/
 universal_rebuild/docs-gen/
 
 # === Build artifacts (generated by devops scripts) ===