Following feedback that T4 — not T3 — is the full-access tier:
- Non-SaaS picker now shows all four tiers: T1 Sandboxed, T2 Standard,
T3 Privileged, T4 Full Access. Four-column grid.
- SaaS picker stays single-option but now locks to T4 (was T3). Every
SaaS workspace gets a dedicated EC2 VM, which is unambiguously the
"full host" case — T3 (privileged container) was a category mismatch.
- Default tier on SaaS is 4 (was 3). CP provisioner already supports
tier 4 (t3.large / 80 GB). TIER_CONFIG already has T4's amber color.
Tests updated for the four-tier picker: wrap tests now go T4 ↔ T1, and
the selection/tabIndex tests cover the fourth button.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>