feat(config): add television cable integration and related keybindings across shells

dot_config/fish/functions/_pj_bind_down.fish

@@ -1,4 +1,4 @@
-function _pj_bind_down --description "down arrow: pj on an idle empty prompt, else fish's down-or-search"
+function _pj_bind_down --description "down arrow: pj tv cable on an idle empty prompt, else fish's down-or-search"
     # Mirror of atuin's up binding (atuin owns up, this owns down). Everything
     # that legitimately needs the arrow keys keeps them:
     #   - non-empty buffer  → multiline cursor movement / forward history search
@@ -13,9 +13,9 @@ function _pj_bind_down --description "down arrow: pj on an idle empty prompt, el
         return
     end
 
-    # pj is ~/.local/bin/pj (shared with the zsh ctrl-p binding). PJ_QUIET
-    # keeps it silent when the tree has no task source at all, so down is a
-    # no-op outside projects instead of printing an error on every press.
+    # pj is ~/.local/bin/pj (also ctrl-p), which opens the `pj` tv cable.
+    # PJ_QUIET keeps it silent when the tree has no task source at all, so
+    # down is a no-op outside projects instead of printing an error per press.
     PJ_QUIET=1 pj
     commandline -f repaint
 end