Root cause of "Failed to send reaction" (after the dispatch fix made the button
reach the publish path): reactions are published under the anonymous SESSION ACTOR,
signed with its private key. But ensureSessionActor adopted a stored session-actor
entry as that key — and a persisted nsec login is passphrase-encrypted with
privateKey "" ("never exposes plaintext"). So a leftover saved-nsec entry hijacked
the anonymous telemetry key, and signEventWithPrivateKey(event, "") threw
"Missing signing primitives". (Repro: logged in with NIP-07 while a saved nsec
account exists on the device.)
Every ensureSessionActor caller uses it to SIGN telemetry (reactions / view events /
watch-history), so the returned actor must carry a usable plaintext key. Now it only
reuses a current/stored actor that has one; otherwise it tracks the locked entry (for
other flows) and generates a fresh ephemeral signing key — instead of returning a
keyless actor that can sign nothing.
Existing session-actor suites green; lint + build green.
Follow-up: the fresh ephemeral key isn't persisted, so a like isn't remembered across
reloads (different anonymous key) — separate from this crash fix.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
