docs: clean up action comments — describe what we do, not what others had

setup-aws/action.yml

@@ -1,12 +1,9 @@
-# Tinqs Setup AWS — replaces aws-actions/configure-aws-credentials@v4
-# Original: https://github.com/aws-actions/configure-aws-credentials (GitHub-hosted, Node.js)
-# Why rewritten: Original uses OIDC federation with GitHub's token endpoint — doesn't exist
-#   on Gitea. Our runners use IAM task roles (ECS/Fargate) or instance profiles (EC2/Lightsail),
-#   so we don't need credential configuration — just install the CLI and optionally ECR login.
-# Removed from original: OIDC, assume-role, session tokens, credential masking, region output.
-#   ECR login bundled here instead of needing separate aws-actions/amazon-ecr-login.
-# Author: Ozan / Claude Code — 2026-05-22
-# Part of: tinqs/ci (Tinqs CI toolchain)
+# tinqs/ci/setup-aws — Tinqs Studio CI
+# Installs AWS CLI and optionally logs into ECR.
+# Credentials come from the runner environment (IAM task role on Fargate, instance
+# profile on EC2/Lightsail) — no explicit key configuration needed.
+# Composite action — runs directly on the host.
+# Author: Ozan + Claude Code — 2026-05-22
 
 name: 'Tinqs Setup AWS'
 description: 'Install AWS CLI and optionally login to ECR'