docs(help): split reorder rows by direction, fix indent overflow

The combined "Shift+→ / Shift+←" key column overflowed the 14-char
budget and wrapped onto two lines, breaking the table layout. Two
adjustments:

- Split reorder into one row per direction (parallel to the existing
  "j / Down" / "k / Up" rows in NAVIGATION) and surface the
  Shift+↑ / Shift+↓ alternates that the bindings already accept.
- Compact the indent row to "Shift+→/←" so it fits on one line.

TUI reference doc gets the same direction split for consistency.

Author: AdamiecRadek

internal/ui/help.go

@@ -166,7 +166,9 @@ func (h *HelpOverlay) View() string {
 	// Define help sections
 	newKeys := h.keyPair(hotkeyNewSession, hotkeyQuickCreate, "n/N")
 	forkKeys := h.keyPair(hotkeyQuickFork, hotkeyForkWithOptions, "f/F")
-	reorderKeys := "K / J"
+	reorderUpKeys := "K / Shift+↑"
+	reorderDownKeys := "J / Shift+↓"
+	indentKeys := "Shift+→/←"
 	searchKey := h.key(hotkeySearch, "/")
 	settingsKey := h.key(hotkeySettings, "S")
 	helpKey := h.key(hotkeyHelp, "?")
@@ -245,8 +247,9 @@ func (h *HelpOverlay) View() string {
 				{previewKey, "Toggle preview mode (output/stats/both)"},
 				{unreadKey, "Mark unread"},
 				{quickApproveKey, "Quick approve (send '1' to Claude)"},
-				{reorderKeys, "Reorder up/down (auto-promote at edge)"},
-				{"Shift+→ / Shift+←", "Indent / outdent (in group)"},
+				{reorderUpKeys, "Reorder up (auto-promote at edge)"},
+				{reorderDownKeys, "Reorder down (auto-promote at edge)"},
+				{indentKeys, "Indent / outdent (in group)"},
 				{forkKeys, "Fork session (Claude only)"},
 				{copyKey, "Copy output to clipboard"},
 				{"C", "Copy preview info (Repo / Path / Branch)"},

skills/agent-deck/references/tui-reference.md

@@ -22,7 +22,8 @@ Complete reference for agent-deck Terminal UI features.
 | `n` | New session (inherits current group) |
 | `r` | Rename session or group |
 | `R` | Restart session (reloads MCPs) |
-| `K` / `J` | Move item up/down (auto-promotes a sub-session to top-level when at the parent's first/last child) |
+| `K` / `Shift+↑` | Move item up (auto-promotes a sub-session to top-level when at the parent's first child) |
+| `J` / `Shift+↓` | Move item down (auto-promotes a sub-session to top-level when at the parent's last child) |
 | `Shift+→` / `Shift+←` | Indent / outdent within current group (single-level nesting) |
 | `M` | Move session to different group |
 | `m` | Open MCP Manager (Claude/Gemini) |