release(v1.7.34-alpha): re-seed onboarding cache + rotating login bg + drop re-login zoom

- useOnboarding.ts: when the backend gives a definitive answer
  (true/false, not a null retry failure), re-seed the
  neode_onboarding_complete localStorage flag accordingly. Fixes the
  case where a user clears site data on an already-onboarded node —
  OnboardingWrapper's useVideoBackground computed reads localStorage
  synchronously, so without this re-seed the intro video would fire
  again on /login even though RootRedirect correctly sent them
  straight to /login.
- OnboardingWrapper.vue: login background now rotates through
  bg-intro-1..6 on each /login mount, with the current index
  persisted to localStorage (neode_login_bg_idx) so subsequent
  logouts advance rather than repeat the same image.
- Dashboard.vue: subsequent-login branch drops the 1.2s showZoomIn
  entirely. Only the first dashboard entry after onboarding plays
  the full zoom + glitch reveal; every re-login now just fades in
  with the welcome typing (~300ms).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

core/Cargo.lock

@@ -80,7 +80,7 @@ checksum = "a23eb6b1614318a8071c9b2521f36b424b2c83db5eb3a0fead4a6c0809af6e61"
 
 [[package]]
 name = "archipelago"
-version = "1.7.33-alpha"
+version = "1.7.34-alpha"
 dependencies = [
  "anyhow",
  "archipelago-container",

core/archipelago/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "archipelago"
-version = "1.7.33-alpha"
+version = "1.7.34-alpha"
 edition = "2021"
 description = "Archipelago Bitcoin Node OS - Native backend"
 authors = ["Archipelago Team"]