feat: resource type validation, 100K max tokens, and auto-split improvements

- Add SQLite-based resource type validation with suggestions for invalid types
- Increase Terraform max_tokens from 32K to 100K for large infra generation
- Generate resource reference at startup to survive volume mount overwrites
- Add invalid resource type examples to system prompt (RPC peer, subnet route table)
- Add prompt size logging for Terraform agent
- Translate remaining Portuguese code comment to English

backend/mcp_cis_server.py

@@ -327,7 +327,7 @@ def _finding_in_compartment(finding, compartment_id):
         if fcomp == compartment_id:
             return True
         if fcomp is None:
-            return True  # recurso sem compartment (IAM tenancy-level) → incluir
+            return True  # resource without compartment (IAM tenancy-level) → include
     return False