feat(config): add CSI‑u shift+enter handling and new shortcut bindings

dot_config/ghostty/config

@@ -37,14 +37,23 @@ keybind = ctrl+plus=increase_font_size:1
 keybind = ctrl+minus=decrease_font_size:1
 keybind = ctrl+zero=reset_font_size
 keybind = ctrl+shift+period=reload_config
-keybind = shift+enter=text:\n
+# shift+enter as CSI-u (ESC[13;2u), the newline-in-prompt key coding agents
+# (omp, claude) read. Never \n: that is ctrl+j, tmux's pane-down key.
+keybind = shift+enter=text:\x1b[13;2u
 
 # command palette: ctrl+space is tmux's root-table C-Space (tmux-palette);
 # sent explicitly as NUL so no keyboard-protocol mode can turn it into a CSI
 keybind = ctrl+space=text:\x00
 # project tasks palette (pj): tmux prefix t
+keybind = ctrl+shift+p=text:\x02t
 keybind = ctrl+shift+space=text:\x02t
 
+# launchers (kitty's ctrl+shift chords), tmux prefix y/e/g/a
+keybind = ctrl+shift+f=text:\x02y
+keybind = ctrl+shift+e=text:\x02e
+keybind = ctrl+shift+g=text:\x02g
+keybind = ctrl+shift+a=text:\x02a
+
 # tabs → tmux windows
 keybind = ctrl+shift+t=text:\x02c
 keybind = ctrl+shift+w=text:\x02k
@@ -60,7 +69,6 @@ keybind = ctrl+shift+h=text:\x02p
 
 # splits → tmux panes
 keybind = ctrl+shift+l=text:\x02v
-keybind = ctrl+shift+e=text:\x02h
 keybind = ctrl+shift+j=text:\x02h
 keybind = ctrl+shift+x=text:\x02x
 
@@ -69,10 +77,8 @@ keybind = ctrl+shift+o=text:\x02o
 keybind = ctrl+shift+enter=text:\x02z
 keybind = ctrl+shift+z=text:\x02z
 
-# scrollback, prompt, help
-keybind = ctrl+shift+f=text:\x02/
+# scrollback, help (search scrollback: tmux prefix /)
 keybind = ctrl+shift+page_up=text:\x02[
-keybind = ctrl+shift+p=text:\x02:
 keybind = ctrl+shift+slash=text:\x02?
 keybind = ctrl+shift+alt+,=text:\x02q