Consolidate Boundaries + History under the account; sectioned /account

The inline Boundaries/History panels lived on the home page, so opening them while
scrolled left you stranded. Move everything "yours" behind the account icon:

- Home header slims to: Saved (opens a right-side flyout, signed-in) · shield
  (Boundaries indicator — filled when active — linking to the Boundaries section) ·
  avatar. The inline panels + the home "saved" view are gone.
- /account is now a sectioned hub (left sidebar on desktop, top tabs on mobile),
  OPEN TO EVERYONE with each section self-gating: Profile (sign-in), Saved (sign-in),
  History (device/account), Boundaries (device/account), Admin (admins). This keeps
  Boundaries/History usable without an account (they're device-local) while
  consolidating the UI — and every section loads at the top, fixing the scroll bug.
- Lift Calm Filters and History into shared stores (prefs.svelte.js, history.svelte.js)
  so the home feed (applies/records) and the account page (edits/manages) share one
  source of truth. New SavedFlyout component. Card boundary actions only render when a
  handler is provided.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

ideas.md

@@ -12,6 +12,11 @@ $ = informational
 
 -l Shomehow include a daily inspirational/motivational/uplifting quote that would change each day.
 - Allow ability to forward/share articles
+- Add section for random curation of articles (Show me some interesting stuff type of thing)
+- Date showed 6/2/2026 while it was still 6/1/2026 at 10:32pm
+- For account-based usage, we should have a thumbs up button that shows up to track the articles the user likes the most.  We can then curate a special feed of articles that match the categories the user likes the most.  Not social-based, just for seeing news that means the most to you.
+- Feasibility of allowing users to add their own custom feeds for news sources
+
 
 
 ##### Completed Sections #####