fix(api): use relative path for dynamic import of S3 presigner

[tofikwest]

Summary

• Fixes API Docker/CodeBuild build failure (TS2307: Cannot find module '@/app/s3')
• Dynamic import() doesn't resolve @/ path aliases in nest build — changed to relative ../app/s3
• Follow-up to fix(api): centralize S3 presigner type workaround for API build #2520 which centralized the S3 presigner wrapper but missed this edge case

Changes

• apps/api/src/policies/policies.controller.ts — 2 lines: await import('@/app/s3') → await import('../app/s3')

Test plan

• Verify API Docker build passes (CodeBuild)

🤖 Generated with Claude Code

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Project	Deployment	Actions	Updated (UTC)
comp-framework-editor	Building	Preview, Comment	Apr 13, 2026 3:32pm

2 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
app	Skipped		Apr 13, 2026 3:32pm
portal	Skipped		Apr 13, 2026 3:32pm

[cursor]

PR Summary

Low Risk
Low risk: only adjusts module resolution for two dynamic imports and does not change S3 signing logic or request behavior.

Overview
Fixes API build/runtime module resolution for PDF download links.

Updates policies.controller.ts to dynamically import getSignedUrl from ../app/s3 (instead of @/app/s3) in both signed-URL code paths so Nest/Docker builds that don’t honor TS path aliases can compile successfully.

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[claudfuen]

🎉 This PR is included in version 3.22.0 🎉

The release is available on GitHub release

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