ARCH-13: internal/deploy package is orphaned dead code

[cristim]

Severity: P3. Confidence: high. Informational.

Affected files:

• internal/deploy/docker.go
• internal/deploy/ecr.go
• internal/deploy/frontend.go
• internal/deploy/profiles.go

Evidence:
Repo-wide grep finds zero non-test importers; ~26KB of code plus ~55KB of tests referenced only by its own test files. Deployment is actually handled by GitHub workflows and terraform/.

Impact:
Dead Docker/ECR shelling code compiled, tested in CI, and repeatedly re-assessed in security scans for no benefit.

Recommendation:
Delete internal/deploy (or park the design intent in a note and remove the code until a CLI deploy command is actually planned).

Verifier verdict: unverified - P3, adversarial verification skipped.

Source: docs/reviews/codebase-review-2026-06-10.md (automated multi-dimension code review, adversarially verified for P1/P2)