Harden alpha lifecycle checks across OTC and lockup flows

[silva-fj]

Summary

• Tighten alpha lifecycle validation in the OTC, alpha lockup, and lockup listings contracts.
• Align shared chain-extension types, events, and error handling with the updated safety rules.
• Refresh localnet and integration coverage for listing, claim, offer, trading, and subnet risk scenarios.
• Update the deployment/runbook and package metadata used by the integration test harness.

Testing

• Added and updated contract unit tests for the new lifecycle constraints.
• Extended integration tests across lockup listings and OTC flows.
• Local validation of the updated test harness and localnet scenarios was performed as part of the change set.