fix(screener): align filter labels and row hover

crates/moon-ui-gpui/src/screener/mod.rs

@@ -1,7 +1,7 @@
 //! Screener window: a Moonbot-style coin table.
 //!
 //! A separate singleton OS window, following the Strategies-window pattern, hosts a `MoonDataTable`
-//! for every market on connected exchanges. Headers control sorting, while Coin and DVol filters
+//! for every market on connected exchanges. Headers control sorting, while Market and Vol. filters
 //! sit in the footer. Multi-core data is grouped by the market-data provider returned by
 //! `MarketDataSource::provider_of`: cores on one exchange share a provider in deduplicated mode,
 //! while per-core mode keeps separate providers. Market columns are read once per provider group;

crates/moon-ui-gpui/src/screener/table.rs

@@ -45,6 +45,16 @@ pub(super) const COLS: &[ColDef] = &[
     ("pos", "Pos", 66.0, true),
 ];
 
+/// Return the displayed title for a Screener column key.
+///
+/// Footer filters resolve their labels through the same schema as the header so the two surfaces
+/// cannot drift back to different Moonbot terminology.
+pub(super) fn column_title(key: &str) -> &'static str {
+    COLS.iter()
+        .find(|column| column.0 == key)
+        .map_or("", |column| column.1)
+}
+
 /// Restore a visible Screener sort as `(key, descending)`.
 ///
 /// The historical Vol.-descending default remains preferred while that column is visible. If it is

crates/moon-ui-gpui/src/screener/table/tests.rs

@@ -4,7 +4,23 @@ use std::collections::HashSet;
 
 use moon_core::config::TableSortPreference;
 
-use super::{COLS, restore_sort};
+use super::{COLS, column_title, restore_sort};
+
+/// The footer labels must resolve from the same schema as the Market and Vol. headers.
+///
+/// Mutation: restore independent `Coin` or `DVol` footer literals. The footer would again disagree
+/// with the headers and the source assertion below would redden.
+#[test]
+fn screener_filter_labels_reuse_matching_column_titles() {
+    assert_eq!(column_title("market"), "Market");
+    assert_eq!(column_title("vol24"), "Vol.");
+
+    let view_source = include_str!("../view.rs");
+    assert!(view_source.contains("label(column_title(\"market\"))"));
+    assert!(view_source.contains("label(column_title(\"vol24\"))"));
+    assert!(!view_source.contains("label(\"Coin\")"));
+    assert!(!view_source.contains("label(\"DVol\")"));
+}
 
 /// `screener/table.rs:restore_sort` must translate MoonUI ascending into the existing `desc` flag.
 ///