refactor(vterm): move vterm prefix to C-; x and add prompt nav

The personal vterm map was on `C-; V'. The capital V costs a Shift on every keystroke into the menu, which adds up for the daily `C-; V c' / `C-; V C' bindings. Move the prefix to lowercase `C-; x' -- free, no Shift, faintly mnemonic (xterm/execute). The lowercase `C-; v' stays the version-control menu.

Wire `vterm-next-prompt' and `vterm-previous-prompt' into the menu so they're reachable everywhere, not only inside vterm-copy-mode-map. Lowercase `n' and `p' match Emacs's idiom for next/previous; bump "new vterm" up to capital `N' for the rare new-buffer case.

Drop the `<pause>' binding for `vterm-copy-mode' from `vterm-mode-map'. Modern keyboards rarely have a Pause key and `C-; x c' is the canonical entry now.

Update which-key labels and tests; `test-vterm-keymap-includes-history-and-copy-bindings' now asserts the new prefix, and two new tests cover prompt-nav bindings and the dropped `<pause>' binding.

1 files changed, 18 insertions, 5 deletions

diff --git a/tests/test-vterm-tmux-history.el b/tests/test-vterm-tmux-history.el
index 754ddc9c..f5263df5 100644
--- a/tests/test-vterm-tmux-history.el
+++ b/tests/test-vterm-tmux-history.el
@@ -120,14 +120,27 @@ RESPONSES is an alist of (ARGS EXIT-CODE OUTPUT)."
 (ert-deftest test-vterm-keymap-includes-history-and-copy-bindings ()
   "Normal: personal vterm map owns the high-level vterm UX commands."
   (should (member "C-;" vterm-keymap-exceptions))
-  (should-not (eq (keymap-lookup cj/custom-keymap "v c") #'vterm-copy-mode))
-  (should (eq (keymap-lookup cj/custom-keymap "V C") #'cj/vterm-tmux-history))
-  (should (eq (keymap-lookup cj/custom-keymap "V c") #'vterm-copy-mode))
+  (should-not (eq (keymap-lookup cj/custom-keymap "X c") #'vterm-copy-mode))
+  (should (eq (keymap-lookup cj/custom-keymap "x C") #'cj/vterm-tmux-history))
+  (should (eq (keymap-lookup cj/custom-keymap "x c") #'vterm-copy-mode))
   (should (equal (keymap-lookup vterm-mode-map "C-;") cj/custom-keymap))
-  (should (eq (keymap-lookup vterm-mode-map "C-; V C") #'cj/vterm-tmux-history))
-  (should (eq (keymap-lookup vterm-mode-map "C-; V c") #'vterm-copy-mode))
+  (should (eq (keymap-lookup vterm-mode-map "C-; x C") #'cj/vterm-tmux-history))
+  (should (eq (keymap-lookup vterm-mode-map "C-; x c") #'vterm-copy-mode))
   (should-not (keymap-lookup vterm-mode-map "C-c C-t")))
 
+(ert-deftest test-vterm-keymap-prompt-navigation ()
+  "Normal: n/p navigate prompts, capital N creates a new vterm buffer."
+  (should (eq (keymap-lookup cj/custom-keymap "x n") #'vterm-next-prompt))
+  (should (eq (keymap-lookup cj/custom-keymap "x p") #'vterm-previous-prompt))
+  (should (eq (keymap-lookup cj/custom-keymap "x N") #'vterm)))
+
+(ert-deftest test-vterm-pause-not-bound-to-copy-mode ()
+  "Normal: <pause> is no longer wired as a vterm-copy-mode entry point.
+The personal `C-; x c' binding is the canonical entry; <pause> is rare on
+modern keyboards and was redundant."
+  (let ((binding (keymap-lookup vterm-mode-map "<pause>")))
+    (should-not (eq binding #'vterm-copy-mode))))
+
 (ert-deftest test-vterm-copy-mode-cancel-keys ()
   "Normal: copy mode has explicit copy and no-copy exits."
   (should (eq (keymap-lookup vterm-copy-mode-map "C-g")