Count hand-valued assets into the wealth figure

A wealth figure that ignores the house is not a wealth figure. Assets
without a market feed - a house, a car, a private loan - are now added
by hand on the Wealth page with a stated value, a currency and the day
the estimate was made; a negative value records a liability. They are
registry entities in assets.finance like everything else, join the
per-currency totals immediately, and a currency held only in an asset
earns its own line.

web/src/main.tsx

@@ -402,7 +402,11 @@ function App() {
                 />
               )}
               {page === "wealth" && (
-                <Wealth revision={state.revision} acceptState={acceptState} />
+                <Wealth
+                  revision={state.revision}
+                  acceptState={acceptState}
+                  mutate={mutate}
+                />
               )}
               {page === "classification" && (
                 <Classification state={state} acceptState={acceptState} />