Mirror the per-account nsec key store for remote-signer sessions: move from a
single slot (bitvid:nip46:session:v1) to a per-user-pubkey map
(bitvid:nip46:sessions:v2) so several saved NIP-46 accounts each keep their own
reconnectable session and the profile switcher can move between them.
Previously only the last-connected session survived, so switching among saved
NIP-46 accounts reconnected the wrong one (or failed).
- nip46Client.js: new per-pubkey session map keyed by userPubkey.
readStoredNip46Session takes an optional target pubkey; writeStoredNip46-
SessionSync writes both the map and the v1 last-connected default;
clearStoredNip46Session(pubkey) forgets one account (no-arg wipes all). Legacy
v1 slot migrated into the map on first read. Adds listStoredNip46SessionPubkeys().
- SignerManager: useStoredRemoteSigner({ pubkey }) selects the target account's
session and, on access-denial, forgets only that account. getStoredNip46-
Metadata(pubkey) is per-account.
- nip46 provider threads expectPubkey into the reuse call so a switch reconnects
the requested account, with the expectPubkey guard as a backstop.
nip46Connector.js is dead code; the live path is entirely in SignerManager.
Tests: tests/nip46-multi-account.test.mjs (7).
Co-Authored-By: Claude Opus 4.8 <[email protected]>
