TUI Plugin Sharing 5 - polish remote plugin catalog rows (#26705)

This is the final plugin sharing PR in the 5-PR stack. It applies the
remaining TUI polish for remote plugin catalog rows and tabs:
admin-disabled plugins now read as blocked/view-only instead of looking
toggleable, admin-installed/default-installed plugins count and sort
like installed plugins, plugin search matches richer metadata, and an
empty successful `Shared with me` section stays hidden.

- Admin-disabled rows use a blocked marker, show `Disabled`, and keep
Enter-only detail behavior without a toggle hint.
- Admin-installed/default-installed plugins show as installed in counts,
ordering, tabs, and detail copy.
- Plugin search now matches descriptions and keywords in addition to
existing row metadata.
- Successful-empty `Shared with me` tabs are hidden, while loading,
error, workspace-empty, and real shared-plugin states remain visible.
- Updates coverage in
`plugins_popup_snapshot_shows_all_marketplaces_and_sorts_installed_then_name`,
`plugins_popup_admin_disabled_installed_plugin_has_no_toggle_hint`,
`plugins_popup_search_matches_plugin_descriptions`, and
`plugins_popup_remote_section_fallback_states_snapshot`.
- Updates snapshots `plugins_popup_curated_marketplace` and
`plugins_popup_empty_shared_section_hidden`.


<img width="2034" height="106" alt="image"
src="https://github.com/user-attachments/assets/3f9a57e1-edd8-4e6c-b0b0-9f632a3c9529"
/>
<img width="2038" height="380" alt="image"
src="https://github.com/user-attachments/assets/45a47491-3381-4846-a13d-496bc0051d42"
/>

codex-rs/tui/src/bottom_pane/list_selection_view.rs

@@ -281,6 +281,63 @@ pub(crate) struct ListSelectionView {
     keymap: ListKeymap,
 }
 
+const SELECTION_TOGGLE_ON_PREFIX: &str = "[*] ";
+const SELECTION_TOGGLE_OFF_PREFIX: &str = "[ ] ";
+pub(crate) const SELECTION_TOGGLE_UNAVAILABLE_PREFIX: &str = "[-] ";
+pub(crate) const SELECTION_TOGGLE_BLOCKED_PREFIX: &str = "[!] ";
+
+fn selection_toggle_prefix(toggle: &SelectionToggle) -> &'static str {
+    if toggle.is_on {
+        SELECTION_TOGGLE_ON_PREFIX
+    } else {
+        SELECTION_TOGGLE_OFF_PREFIX
+    }
+}
+
+fn selection_item_toggle_prefix(item: &SelectionItem) -> Option<&'static str> {
+    item.toggle
+        .as_ref()
+        .map(selection_toggle_prefix)
+        .or(item.toggle_placeholder)
+}
+
+impl ListSelectionView {
+    fn selected_item_has_toggle(&self) -> bool {
+        self.selected_actual_idx()
+            .and_then(|actual_idx| self.active_items().get(actual_idx))
+            .is_some_and(|item| item.toggle.is_some() && Self::item_is_enabled(item))
+    }
+
+    fn selected_item_has_toggle_placeholder(&self) -> bool {
+        self.selected_actual_idx()
+            .and_then(|actual_idx| self.active_items().get(actual_idx))
+            .is_some_and(|item| {
+                item.toggle.is_none()
+                    && item.toggle_placeholder.is_some()
+                    && Self::item_is_enabled(item)
+            })
+    }
+
+    fn toggle_selected(&mut self) {
+        let Some(actual_idx) = self.selected_actual_idx() else {
+            return;
+        };
+        let app_event_tx = self.app_event_tx.clone();
+        let Some(item) = self.active_items_mut().get_mut(actual_idx) else {
+            return;
+        };
+        if !Self::item_is_enabled(item) {
+            return;
+        }
+        let Some(toggle) = item.toggle.as_mut() else {
+            return;
+        };
+
+        toggle.is_on = !toggle.is_on;
+        (toggle.action)(toggle.is_on, &app_event_tx);
+    }
+}
+
 impl ListSelectionView {
     /// Create a selection popup view with filtering, scrolling, and callbacks wired.
     ///
@@ -533,10 +590,8 @@ impl ListSelectionView {
                     let wrap_prefix_width = UnicodeWidthStr::width(wrap_prefix.as_str());
                     let mut name_prefix_spans = Vec::new();
                     name_prefix_spans.push(wrap_prefix.into());
-                    if let Some(toggle) = &item.toggle {
-                        name_prefix_spans.push(if toggle.is_on { "[*] " } else { "[ ] " }.into());
-                    } else if let Some(placeholder) = item.toggle_placeholder {
-                        name_prefix_spans.push(placeholder.into());
+                    if let Some(toggle_prefix) = selection_item_toggle_prefix(item) {
+                        name_prefix_spans.push(toggle_prefix.into());
                     }
                     name_prefix_spans.extend(item.name_prefix_spans.clone());
                     let description = is_selected
@@ -611,22 +666,6 @@ impl ListSelectionView {
         item.disabled_reason.is_none() && !item.is_disabled
     }
 
-    fn selected_item_has_toggle(&self) -> bool {
-        self.selected_actual_idx()
-            .and_then(|actual_idx| self.active_items().get(actual_idx))
-            .is_some_and(|item| item.toggle.is_some() && Self::item_is_enabled(item))
-    }
-
-    fn selected_item_has_toggle_placeholder(&self) -> bool {
-        self.selected_actual_idx()
-            .and_then(|actual_idx| self.active_items().get(actual_idx))
-            .is_some_and(|item| {
-                item.toggle.is_none()
-                    && item.toggle_placeholder.is_some()
-                    && Self::item_is_enabled(item)
-            })
-    }
-
     fn actual_idx_for_enabled_number(&self, number: usize) -> Option<usize> {
         if number == 0 {
             return None;
@@ -640,25 +679,6 @@ impl ListSelectionView {
             .map(|(idx, _)| idx)
     }
 
-    fn toggle_selected(&mut self) {
-        let Some(actual_idx) = self.selected_actual_idx() else {
-            return;
-        };
-        let app_event_tx = self.app_event_tx.clone();
-        let Some(item) = self.active_items_mut().get_mut(actual_idx) else {
-            return;
-        };
-        if !Self::item_is_enabled(item) {
-            return;
-        }
-        let Some(toggle) = item.toggle.as_mut() else {
-            return;
-        };
-
-        toggle.is_on = !toggle.is_on;
-        (toggle.action)(toggle.is_on, &app_event_tx);
-    }
-
     fn move_up(&mut self) {
         let before = self.selected_actual_idx();
         let len = self.visible_len();

codex-rs/tui/src/bottom_pane/mod.rs

@@ -190,6 +190,8 @@ use crate::status_indicator_widget::StatusDetailsCapitalization;
 use crate::status_indicator_widget::StatusIndicatorWidget;
 pub(crate) use experimental_features_view::ExperimentalFeatureItem;
 pub(crate) use experimental_features_view::ExperimentalFeaturesView;
+pub(crate) use list_selection_view::SELECTION_TOGGLE_BLOCKED_PREFIX;
+pub(crate) use list_selection_view::SELECTION_TOGGLE_UNAVAILABLE_PREFIX;
 pub(crate) use list_selection_view::SelectionAction;
 pub(crate) use list_selection_view::SelectionItem;