Code-level audit of the NIP-46/Amber login+profile+persistence bug points at a
single shared SignerManager.nip46Client + per-profile restore/switch not being
multi-account-aware. Added TEMP [nip46-diag] userLogger traces (visible on
unstable; devLogger is gated off there) at:
- scheduleStoredRemoteSignerRestore (restore-on-load → "unknown user")
- disconnectRemoteSigner (the shared-client teardown → "logs out everyone")
- SignerManager.logout (scope)
- authService.switchProfile (does the switch resolve the expected pubkey)
These let a single Amber reproduction pinpoint the exact failure before the fix.
Findings + plan recorded under TODO #33. Remove diagnostics with the fix.
Co-Authored-By: Claude Opus 4.8 <[email protected]>