v1.5.0 — Mobile Contract v2 Frozen (Proof Pack Sealed)

Adamantine Wallet OS v1.5.0 freezes the Mobile Integration Contract (v2) and seals the corresponding proof pack.

This release formally locks:
• Mobile request contract v2
• Mobile response contract v2 (including protection_mode)
• Strict JSON schema validation (reject unknown fields)
• Golden fixture roundtrip pack (v1_5_0_mobile)
• Canonical hash manifest enforcement
• 100-run determinism replay tests
• Mobile reason registry validation lock

All mobile payload shapes are now regression-protected and CI-enforced.

Any breaking change to:
• request schema
• response schema
• canonicalization rules
• reason registry semantics

…requires a major version bump.

This release completes the Mobile Integration Freeze and prepares the system for Authority Constitution Freeze (v2.0.0).