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.

internal/journal/store_test.go

@@ -514,6 +514,30 @@ func TestNullListsPreserveUntouchedExternalBlockBytes(t *testing.T) {
 	}
 }
 
+// An asset is a registry entity like any other: committed to its own file and
+// identical after a fresh load, or the wealth it backs vanishes on restart.
+func TestAssetsSurviveCommitAndReload(t *testing.T) {
+	s := openTestStore(t)
+	d, r := loadTestStore(t, s)
+	d.Assets = []domain.Asset{{ID: "asset_house", Name: "House", Kind: "Real estate", Currency: "EUR", Value: "250000.00", ValuedAt: "2026-09-01"}}
+	commitTestStore(t, s, r, d)
+	if err := s.Close(); err != nil {
+		t.Fatal(err)
+	}
+	fresh, err := Open(s.dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer fresh.Close()
+	loaded, _ := loadTestStore(t, fresh)
+	if !reflect.DeepEqual(loaded.Assets, d.Assets) {
+		t.Errorf("assets after reload %+v, want %+v", loaded.Assets, d.Assets)
+	}
+	if raw := readTestFile(t, filepath.Join(s.dir, "assets.finance")); !bytes.Contains(raw, []byte(`asset {`)) {
+		t.Errorf("assets.finance holds no asset block: %s", raw)
+	}
+}
+
 func TestOversizedCommitCannotPublishUnreadableRecoveryIntent(t *testing.T) {
 	s := openTestStore(t)
 	original, r := loadTestStore(t, s)