Migrate remaining CLI usage to lstk

[HarshCasper]

Summary

• Finish the migration started in Migrate samples to lstk, away from awslocal and tflocal #17: s3-static-website/deploy.ps1 now installs and uses lstk (it half-used lstk aws already but still installed awscli-local and ran the legacy lifecycle commands); the -Ready switch is removed since lstk start blocks until ready.
• Fix the CI failures: common.mk's start now runs lstk setup aws --force — without a profile, lstk aws prints a note into stdout that corrupts the | jq parsing every sample's smoke test relies on (this began failing on master when the note was introduced in an lstk release, weeks before this PR). Also prefix DEBUG → LOCALSTACK_DEBUG so it actually reaches the emulator.
• Mechanical tflocal/awslocal → lstk tf/lstk aws sweep across sample-archive/ so no copy-able legacy CLI text remains — those samples stay disclaimed as non-functional, so this is text-only; happy to drop the archive changes if preferred.

Testing

• CI workflow run on this branch.

Part of DEVX-1056

https://claude.ai/code/session_019Syt1j5eEeCGfuVCM78mom