feat: confluence benchmark, pattern extractor, agent KB, UX spec

- extract-patterns.js: mines layered arch, ArgoCD appsets, cloud regions,
  CIDR allocations, naming conventions, sync waves, tech stack from code
- agent-kb.js: token-efficient JSON rendering of same doc tree
- eval-confluence-ref-questions.json: 32 reference-only benchmark questions
- wiggum-v2.sh: Ralph Wiggum loop targeting confluence baseline (77.8%)
- docs/human-ux-spec.md: BMad UX designer spec for human doc structure
- Eval results: V2 at 28.7% vs confluence 77.8% baseline
- Hub/spoke ownership now correctly extracted (95% on that question)
- Naming conventions, regions, CIDRs surfaced in system-architecture.md

foxtrot-docs-v3/reference/terraform/runtime-cloud-iam-aws-china-616006738108.md

@@ -0,0 +1,34 @@
+# Terraform: runtime/cloud-iam/aws/china/616006738108
+
+## Requirements
+
+| Name | Version |
+|------|---------|
+| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >=1.3.0 |
+| <a name="requirement_aws"></a> [aws](#requirement\_aws) | 5.47.0 |
+
+## Providers
+
+No providers.
+
+## Modules
+
+No modules.
+
+## Resources
+
+No resources.
+
+## Inputs
+
+| Name | Description | Type | Default | Required |
+|------|-------------|------|---------|:--------:|
+| <a name="input_account_id"></a> [account\_id](#input\_account\_id) | n/a | `string` | `"616006738108"` | no |
+| <a name="input_bucket"></a> [bucket](#input\_bucket) | n/a | `string` | `"terraform-state-cloud-iam"` | no |
+| <a name="input_external_id"></a> [external\_id](#input\_external\_id) | n/a | `string` | `"Temp@9865"` | no |
+| <a name="input_region"></a> [region](#input\_region) | n/a | `string` | `"cn-northwest-1"` | no |
+| <a name="input_role_arn"></a> [role\_arn](#input\_role\_arn) | n/a | `string` | `"arn:aws-cn:iam::616006738108:role/Terraform-IAM-Role"` | no |
+
+## Outputs
+
+No outputs.