fix: help-screen drift, dead Shift+D binding, byte/char title truncation

'?' help never mentioned the M (Profiles & Sync) menu at all, and
documented 'd'/'p'/'c' only for their generic meaning while Stats/
Activity tabs silently overload the same keys for something else —
same class of bug the earlier B4 fix addressed, just new drift since.
Also: 'D' with an explicit SHIFT-modifier guard never matched, since
terminals deliver Shift+d as an already-uppercase char with no
modifier flag (same root cause as the earlier Ctrl+A fix) — merged
into the identical plain-Delete arm instead of leaving it dead code.
Also: PR/issue title continuation used title.len() (bytes) to decide
whether to render a second line, while the actual text used
.chars() — a non-ASCII title could get a spurious blank line.

src/hub/keys_dispatch.rs

@@ -362,20 +362,12 @@ pub fn handle_global_key(state: &mut HubState, key: KeyEvent) -> Option<PhaseRes
                 state.modal = Modal::Text { title: "Edit todo — Title".into(), prompt: "Title:".into(), value: cur, tag: TextTag::TodoEditTitle(ti), max_len: Some(100) };
             }
         }
-        KeyCode::Delete | KeyCode::Char('D') if key.modifiers.contains(KeyModifiers::SHIFT) => {
-            if state.tab == Tab::Todos {
-                if let Some(ti) = state.cur_todo_idx() {
-                    let title = state.todos[ti].title.clone();
-                    state.modal = Modal::Confirm { message: format!("Delete '{}'?", title), tag: ConfirmTag::DeleteTodo(ti) };
-                }
-            } else if state.tab == Tab::Projects {
-                if let Some(pi) = state.cur_proj_idx() {
-                    let name = state.projects[pi].name.clone();
-                    state.modal = Modal::Confirm { message: format!("Delete project '{}'?", name), tag: ConfirmTag::DeleteProject(pi) };
-                }
-            }
-        }
-        KeyCode::Delete => {
+        // Terminals deliver Shift+d as an already-uppercase 'D' without a
+        // separate SHIFT modifier flag on the char event (same class of bug
+        // as the Ctrl+A fix above) — match the bare char instead of gating
+        // on a modifier that never actually arrives, and fold the identical
+        // plain-`Delete` handling into the same arm rather than duplicating it.
+        KeyCode::Delete | KeyCode::Char('D') => {
             if state.tab == Tab::Todos {
                 if let Some(ti) = state.cur_todo_idx() {
                     let title = state.todos[ti].title.clone();

src/hub/render.rs

@@ -30,7 +30,7 @@ pub static HELP_LINES: &[&str] = &[
     "── Filtering & Sorting ───────────────────────",
     " /            Fuzzy filter repos (↑↓ move · Enter open · Esc clear)",
     " S            Sort & filter menu",
-    " d            Toggle: show only dirty repos",
+    " d            Toggle: show only dirty repos (Stats tab: preview digest instead)",
     " b            Toggle: show only behind repos",
     " f            Toggle: show only ahead repos",
     " a            Toggle: show archived repos (no commits >90d)",
@@ -58,7 +58,7 @@ pub static HELP_LINES: &[&str] = &[
     " Space        Select repo for batch action",
     "",
     "── Projects & Todos ──────────────────────────",
-    " p            Project menu (create / assign / rename / delete)",
+    " p            Project menu (create / assign / rename / delete) (Stats tab: cycle period instead)",
     " +            New todo",
     " e            Edit todo (Todos tab)",
     " Space        (Todos tab) Cycle todo status, or expand/collapse a group",
@@ -69,6 +69,15 @@ pub static HELP_LINES: &[&str] = &[
     " D / Del      Delete todo or project",
     " T            Scan repos for TODO/FIXME/HACK → import to Todos",
     "",
+    "── Stats & Activity ──────────────────────────",
+    " p            (Stats tab) Cycle period forward: 1d → 7d → 30d → 90d → 1y → all",
+    " <            (Stats tab) Cycle period backward",
+    " d            (Stats tab) Preview weekly digest",
+    " c            (Activity tab) Cycle activity-kind filter",
+    "",
+    "── Settings ───────────────────────────────────",
+    " M            (Settings tab) Profiles & Sync menu — switch/save/push/pull settings",
+    "",
     "── Help ──────────────────────────────────────",
     " ?            Show this help",
     " v            (Overview) Open release notes in browser",

src/hub/right_panel.rs

@@ -424,7 +424,7 @@ fn render_right_pr(f: &mut Frame, state: &HubState, area: Rect) {
         lines.push(r_kv("Number", &format!("#{}", pr.number), Color::DarkGray));
         lines.push(Line::from(""));
         lines.push(Line::from(Span::styled(format!(" \"{}\"", pr.title.chars().take(30).collect::<String>()), Style::default().fg(Color::White).add_modifier(Modifier::BOLD))));
-        if pr.title.len() > 30 {
+        if pr.title.chars().count() > 30 {
             lines.push(Line::from(Span::styled(format!("  {}", pr.title.chars().skip(30).take(30).collect::<String>()), Style::default().fg(Color::White))));
         }
         lines.push(Line::from(""));
@@ -459,7 +459,7 @@ fn render_right_issue(f: &mut Frame, state: &HubState, area: Rect) {
         lines.push(r_kv("Number",   &format!("#{}", issue.number), Color::DarkGray));
         lines.push(Line::from(""));
         lines.push(Line::from(Span::styled(format!(" \"{}\"", issue.title.chars().take(30).collect::<String>()), Style::default().fg(Color::White).add_modifier(Modifier::BOLD))));
-        if issue.title.len() > 30 {
+        if issue.title.chars().count() > 30 {
             lines.push(Line::from(Span::styled(format!("  {}", issue.title.chars().skip(30).take(30).collect::<String>()), Style::default().fg(Color::White))));
         }
         lines.push(Line::from(""));