Replaces the raw "2026-09-10 10:03:54" with each platform's own locale-formatted, no-seconds rendering (e.g. "Sep 10, 2026, 10:03 AM" in en-US) — mirroring how amounts are already locale-formatted elsewhere (NumberFormat.kt). Android uses the pre-java.time Calendar/DateFormat APIs since minSdk 24 predates java.time (API 26) and the project has no core library desugaring configured. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01FXcrACM5sok3M1KQJ8kByy