test(ios): await alias authentication fixture

[AnganSamadder]

Summary

• replace the fixed authentication sleep in the equivalent-alias identity fixture with the existing awaited authentication helper
• prepare version 0.1.15 (build 130) as the fully green TestFlight candidate

Hosted RED

• final-main ASan run 32843901607 executed 2,790 tests and failed only testIsCurrentUser_WithEquivalentAliasId_ReturnsTrue because the fixture asserted before asynchronous authentication completed
• no AddressSanitizer diagnostic was reported

Verification

• exact selector under ASan: 10/10 passed
• AppStoreEdgeCaseTests under ASan: 75/75 passed
• full ASan: 2,790/2,790 passed; no sanitizer diagnostics
• full standard iOS: 2,790/2,790 passed
• full TSan: 2,748/2,748 passed; no sanitizer diagnostics
• bun run ci: 573 backend tests passed; lint, format, typecheck, and builds green

No app runtime behavior changed in this follow-up.

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Project	Deployment	Actions	Updated (UTC)
payback	Ready	Preview	Aug 25, 2026 12:58pm

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