KIP Interfaces — Development Continuity Baseline v0.1.46

Development, not deployed or approved. Library handoff v1.15.0 is the cross-chat authority; the v0.1.44 baseline is historical. Installed application user-observed v0.1.44; external updater v0.1.22 last observed. Browser migration and rollback acceptance pending. Package version 0.1.45. Consult Development-Handoff.md and Development-Backlog.md for the active working state.