feat(claudbg-vqhj): '/' key focuses filter/search bar

Press '/' to immediately focus the filter input on the session-list
screen and the search input on the transcript screen, matching the
less(1) convention. Updates help modal and placeholder hint text.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.beans/claudbg-vqhj--tui-key-focuses-filtersearch-bar.md

@@ -1,10 +1,11 @@
 ---
 # claudbg-vqhj
 title: 'TUI: ''/'' key focuses filter/search bar'
-status: todo
+status: in-progress
 type: feature
+priority: normal
 created_at: 2026-04-01T06:10:47Z
-updated_at: 2026-04-01T06:10:47Z
+updated_at: 2026-04-01T06:13:37Z
 ---
 
 Pressing '/' in the session list or transcript screen should immediately focus the filter/search input, matching the less(1) convention. Currently 't' and Tab are the only bindings that open the filter. The '/' binding should work on both the session-list screen (opens the filter bar) and the transcript screen (opens the search bar).

src/tui/modals/help_modal.rs

@@ -16,7 +16,7 @@ use crate::tui::state::AppState;
 
 /// Dialog dimensions.
 const DIALOG_WIDTH: u16 = 32;
-const DIALOG_HEIGHT: u16 = 20;
+const DIALOG_HEIGHT: u16 = 26;
 
 /// Compute a centered [`Rect`] of the given size within `area`.
 fn centered_rect(width: u16, height: u16, area: Rect) -> Rect {
@@ -43,9 +43,14 @@ const HELP_TEXT: &str = "\
   Tab       cycle panes\n\
   Enter     open/select\n\
   Esc       go back\n\
+\n\
+ Filter (sessions)\n\
+  t / /     open filter\n\
+  Enter     apply & close\n\
+  Esc       clear input\n\
 \n\
  Search (transcript)\n\
-  t         open search\n\
+  t / /     open search\n\
   n / N     next/prev match\n\
   Enter     apply & close\n\
   Esc       clear & close\n\

src/tui/screens/session_list.rs

@@ -182,7 +182,7 @@ fn render_filter_bar(f: &mut Frame, area: Rect, state: &AppState) {
         Line::from(vec![
             label,
             Span::styled(
-                "Press 't' or Tab to focus — type a query and press Enter",
+                "Press '/', 't', or Tab to focus — type a query and press Enter",
                 Style::default().fg(Color::DarkGray),
             ),
         ])
@@ -259,7 +259,7 @@ pub fn handle_session_list_event(event: Event, state: &mut AppState) -> bool {
             true
         }
         // Focus the filter input directly.
-        KeyCode::Char('t') => {
+        KeyCode::Char('t') | KeyCode::Char('/') => {
             state.focus = Focus::FilterInput;
             true
         }

src/tui/screens/transcript.rs

@@ -584,7 +584,7 @@ pub fn handle_transcript_event(event: Event, state: &mut AppState) -> bool {
             true
         }
         // Jump directly to the search input.
-        KeyCode::Char('t') => {
+        KeyCode::Char('t') | KeyCode::Char('/') => {
             state.focus = Focus::SearchInput;
             true
         }