feat(zellij): relocate mode-entry keys to Alt+Shift+* to stop shadowing shell/nvim

Zellij's default Ctrl+* mode-entry keys (Ctrl+p/t/r/s/o/g/b/q) were
intercepted before reaching the inner shell/editor, shadowing zsh fzf
bindings (Ctrl+t), history navigation (Ctrl+p/n), nvim jumps (Ctrl+o),
save (Ctrl+s), etc.

Unbind all conflicting Ctrl+* entries and relocate mode-entry to
Alt+Shift+<first-letter-of-mode>:
  Alt+Shift+P  Pane
  Alt+Shift+T  Tab
  Alt+Shift+R  Resize
  Alt+Shift+S  Scroll
  Alt+Shift+O  Session
  Alt+Shift+Z  Locked   (Z avoids Treewalker Alt+Shift+h/j/k/l swap)
  Alt+Shift+Q  Quit

TMUX-compat mode dropped. Only Ctrl+h/j/k/l remain bound in zellij (for
vim-zellij-navigator); every other Ctrl+* now passes through.

Requires fresh zellij session (kill-all-sessions -y) to take effect.

1 files changed, 14 insertions, 0 deletions

diff --git a/dot_config/zellij/config.kdl b/dot_config/zellij/config.kdl
index 5f7e193..569a52e 100644
--- a/dot_config/zellij/config.kdl
+++ b/dot_config/zellij/config.kdl
@@ -23,6 +23,20 @@ pane_frames false
 // Custom keybindings (merged with defaults)
 keybinds {
     shared_except "locked" {
+        // Free up Ctrl+* keys so they pass through to zsh / nvim.
+        // Mode-entry relocated to Alt+Shift+* below. Ctrl+h/j/k/l are kept
+        // by the vim-zellij-navigator binds further down.
+        unbind "Ctrl b" "Ctrl g" "Ctrl n" "Ctrl o" "Ctrl p" "Ctrl q" "Ctrl s" "Ctrl t"
+
+        // Mode entry (Alt+Shift+<first-letter-of-mode>)
+        bind "Alt Shift P" { SwitchToMode "Pane"; }
+        bind "Alt Shift T" { SwitchToMode "Tab"; }
+        bind "Alt Shift R" { SwitchToMode "Resize"; }
+        bind "Alt Shift S" { SwitchToMode "Scroll"; }
+        bind "Alt Shift O" { SwitchToMode "Session"; }
+        bind "Alt Shift Z" { SwitchToMode "Locked"; }
+        bind "Alt Shift Q" { Quit; }
+
         // Direct tab access (Alt+number)
         bind "Alt 1" { GoToTab 1; }
         bind "Alt 2" { GoToTab 2; }