feat: poll server data so shared pages stay near-live

Refetch the current page every 15s while the tab is visible, gated by a
pure refresh policy: edit pages, hidden or offline tabs and in-flight
navigations are left alone. Replaces refresh-on-refocus with auto-refresh.

1 files changed, 6 insertions, 5 deletions

diff --git a/README.md b/README.md
index b047498..19b641e 100644
--- a/README.md
+++ b/README.md
@@ -3,13 +3,15 @@ chores).
 
 ## Features
 
-- **Refocus refresh** — returning to the app after 10 seconds away refetches
-  the current page's data; edit pages are left untouched.
+- **Auto refresh** — the current page's data is refetched every 15 seconds
+  while the tab is visible, and on returning to the app after at least 10
+  seconds away; edit pages, hidden or offline tabs and in-flight navigations
+  are left untouched. No server push: polling.
 - **Groceries** — two concepts: the **catalog** (every item ever added) and
   the **list** (unchecked items — what to buy next). Quick add with
   autocomplete, bulk category updates while planning, aisle-grouped view
-  while shopping. Shared across devices, but live sync is not implemented —
-  refresh to see your partner's changes.
+  while shopping. Shared across devices — every tab polls the server, so your
+  partner's changes land within ~15 seconds.
 - **Product references** — for items like "coffee" or "pasta": one or more
   reference brands with a price per unit (€/kg or €/L) and a quality score
   (0–100), comparable from the item while in the store. One reference can be
@@ -79,7 +81,6 @@ mise run deploy
 
 ## TODO
 
-- Live updates from server
 - Auto-categorize new items (LLM-assisted)
 - https://automerge.org/docs/tutorial/
 - Shared > Modal actions