fix: an address holding only unpriced tokens is no longer totalled at $0.00 (closes #261)

TODO.md

@@ -45,6 +45,22 @@ undefined identifiers, which is how
 
 # Completed Steps
 
+- 2026-08-17: An address total no longer reports `$0.00` for holdings it cannot
+  price. Prices exist for the top 25 tokens only, so the priced-only sum was
+  printed as the total and an address holding nothing but unpriced ERC-20s was
+  shown as worth nothing — directly under "This address holds a balance." on the
+  address-removal confirmation. `getAddressValue()` in `src/shared/prices.js`
+  now returns `{ usd, partial }`, keeping worth-zero and worth-an-unknown-amount
+  apart the way an absent `holders_count` is kept apart from a count of zero,
+  and every screen renders it through the one `formatAddressTotal()`: the figure
+  when it covers everything, the figure marked `plus unpriced tokens` when it
+  covers part, and `Total: unpriced tokens only` when it would cover nothing.
+  Home, AddressDetail and the removal confirmation all read it, and
+  `getWalletValue()`/`getTotalValue()` carry `partial` up. Covered by
+  `tests/addressValue.test.js` — the only-unpriced, genuinely-zero and
+  fully-priced cases at the helper and at both call sites that return their
+  markup — demonstrated failing first
+  ([#261](https://git.eeqj.de/sneak/AutistMask/issues/261)).
 - 2026-08-17: `README.md` no longer advertises a defect the wallet does not
   have. The End-to-End Tests section listed the EIP-1193 code being dropped in
   the last hop into the page as a standing limit of the dApp coverage; that