refactor(term): finish ghostel retirement (phase 5)

Remove the dead ghostel app from theme-studio: the GHOSTEL_FACES/SEED data, the registry row, the renderGhostelPreview previewer, and the package_seed test, then regenerate the tool. ansi-color stays since eat inherits it. Rename testutil-ghostel-buffers to testutil-terminal-buffers and drop make-fake-ghostel-buffer; the toggle-filter test now uses the eat fixture, since agents are eat. Fix the comments that still called the agent buffers ghostel (they're eat now) in eat-config and the ai-term and auto-dim test docstrings. I also package-deleted the unused ghostel ELPA package. Full suite green; the remaining ghostel mentions are accurate migration history.

16 files changed, 32 insertions, 44 deletions

diff --git a/tests/test-ai-term--agent-buffers.el b/tests/test-ai-term--agent-buffers.el
index 20c661c45..e0d8faa79 100644
--- a/tests/test-ai-term--agent-buffers.el
+++ b/tests/test-ai-term--agent-buffers.el
@@ -14,7 +14,7 @@
 (add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
 (add-to-list 'load-path (expand-file-name "tests" user-emacs-directory))
 (require 'ai-term)
-(require 'testutil-ghostel-buffers)
+(require 'testutil-terminal-buffers)
 
 (ert-deftest test-ai-term--agent-buffers-empty-when-none-exist ()
   "Boundary: no agent-prefixed buffers anywhere -> empty list."
diff --git a/tests/test-ai-term--close.el b/tests/test-ai-term--close.el
index 4098c091e..242bfd749 100644
--- a/tests/test-ai-term--close.el
+++ b/tests/test-ai-term--close.el
@@ -2,7 +2,7 @@
 
 ;;; Commentary:
 ;; `cj/ai-term-close' tears an agent down gracefully: kill its tmux
-;; session (stopping the agent process), kill the ghostel buffer, and
+;; session (stopping the agent process), kill the agent buffer, and
 ;; remove its window.  These tests cover the pure pieces -- the
 ;; tmux-kill helper, the per-buffer teardown, and the target selection --
 ;; with `process-file' and the prompt mocked at the boundary.
@@ -15,7 +15,7 @@
 (add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
 (add-to-list 'load-path (expand-file-name "tests" user-emacs-directory))
 (require 'ai-term)
-(require 'testutil-ghostel-buffers)
+(require 'testutil-terminal-buffers)
 
 (ert-deftest test-ai-term--kill-tmux-session-runs-kill-session ()
   "Normal: invokes `tmux kill-session -t <session>'."
diff --git a/tests/test-ai-term--collapse-split.el b/tests/test-ai-term--collapse-split.el
index a09af5598..bae913624 100644
--- a/tests/test-ai-term--collapse-split.el
+++ b/tests/test-ai-term--collapse-split.el
@@ -23,7 +23,7 @@
 (add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
 (add-to-list 'load-path (expand-file-name "tests" user-emacs-directory))
 (require 'ai-term)
-(require 'testutil-ghostel-buffers)
+(require 'testutil-terminal-buffers)
 
 ;;; cj/--ai-term-most-recent-non-agent-buffer
 
diff --git a/tests/test-ai-term--dispatch.el b/tests/test-ai-term--dispatch.el
index 91b5e1bc6..129c53cda 100644
--- a/tests/test-ai-term--dispatch.el
+++ b/tests/test-ai-term--dispatch.el
@@ -16,7 +16,7 @@
 (add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
 (add-to-list 'load-path (expand-file-name "tests" user-emacs-directory))
 (require 'ai-term)
-(require 'testutil-ghostel-buffers)
+(require 'testutil-terminal-buffers)
 
 (ert-deftest test-ai-term--dispatch-window-displayed-returns-toggle-off ()
   "Normal: displayed agent window -> (toggle-off . WIN)."
diff --git a/tests/test-ai-term--display-saved.el b/tests/test-ai-term--display-saved.el
index 51c22fde9..5707bea5b 100644
--- a/tests/test-ai-term--display-saved.el
+++ b/tests/test-ai-term--display-saved.el
@@ -26,7 +26,7 @@
 (add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
 (add-to-list 'load-path (expand-file-name "tests" user-emacs-directory))
 (require 'ai-term)
-(require 'testutil-ghostel-buffers)
+(require 'testutil-terminal-buffers)
 
 (ert-deftest test-ai-term--display-saved-uses-desktop-defaults-when-state-nil ()
   "Normal: nil state on a desktop -> rightmost, size=cj/ai-term-desktop-width.
diff --git a/tests/test-ai-term--displayed-agent-window.el b/tests/test-ai-term--displayed-agent-window.el
index eeb40ed31..ced3ff414 100644
--- a/tests/test-ai-term--displayed-agent-window.el
+++ b/tests/test-ai-term--displayed-agent-window.el
@@ -12,7 +12,7 @@
 (add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
 (add-to-list 'load-path (expand-file-name "tests" user-emacs-directory))
 (require 'ai-term)
-(require 'testutil-ghostel-buffers)
+(require 'testutil-terminal-buffers)
 
 (ert-deftest test-ai-term--displayed-agent-window-no-buffers-returns-nil ()
   "Boundary: no agent buffers anywhere -> nil."
diff --git a/tests/test-ai-term--launch-command.el b/tests/test-ai-term--launch-command.el
index 246e70a3f..e61c0e579 100644
--- a/tests/test-ai-term--launch-command.el
+++ b/tests/test-ai-term--launch-command.el
@@ -1,7 +1,7 @@
 ;;; test-ai-term--launch-command.el --- Tests for cj/--ai-term-launch-command -*- lexical-binding: t; -*-
 
 ;;; Commentary:
-;; The launch command is what gets typed into a fresh ghostel shell to bring
+;; The launch command is what gets typed into a fresh shell to bring
 ;; up the agent inside a per-project tmux session.  The session is named
 ;; `cj/ai-term-tmux-session-prefix' + the project basename, so a second
 ;; F9 on the same project reattaches to the running agent rather than
diff --git a/tests/test-ai-term--reuse-edge-window.el b/tests/test-ai-term--reuse-edge-window.el
index a9a0529e8..8ba2f759f 100644
--- a/tests/test-ai-term--reuse-edge-window.el
+++ b/tests/test-ai-term--reuse-edge-window.el
@@ -25,7 +25,7 @@
 (add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
 (add-to-list 'load-path (expand-file-name "tests" user-emacs-directory))
 (require 'ai-term)
-(require 'testutil-ghostel-buffers)
+(require 'testutil-terminal-buffers)
 
 (defun cj/test--displayed-buffer-names ()
   "Return the buffer names shown in the selected frame, left/top to right/bottom."
diff --git a/tests/test-ai-term--reuse-existing-agent.el b/tests/test-ai-term--reuse-existing-agent.el
index 3f0c64493..361e94be9 100644
--- a/tests/test-ai-term--reuse-existing-agent.el
+++ b/tests/test-ai-term--reuse-existing-agent.el
@@ -17,7 +17,7 @@
 (add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
 (add-to-list 'load-path (expand-file-name "tests" user-emacs-directory))
 (require 'ai-term)
-(require 'testutil-ghostel-buffers)
+(require 'testutil-terminal-buffers)
 
 (ert-deftest test-ai-term--reuse-existing-agent-swaps-buffer-when-window-exists ()
   "Normal: an agent window exists -> swap its buffer, return the window."
diff --git a/tests/test-ai-term--server-display.el b/tests/test-ai-term--server-display.el
index b3d32dc83..6db9cf2d3 100644
--- a/tests/test-ai-term--server-display.el
+++ b/tests/test-ai-term--server-display.el
@@ -16,7 +16,7 @@
 (add-to-list 'load-path (expand-file-name "tests" user-emacs-directory))
 (require 'ai-term)
 (require 'server)
-(require 'testutil-ghostel-buffers)
+(require 'testutil-terminal-buffers)
 
 (ert-deftest test-ai-term--non-agent-window-finds-code-window ()
   "Normal: agent on the right, code on the left -> returns the code window."
diff --git a/tests/test-ai-term--single-window-toggle.el b/tests/test-ai-term--single-window-toggle.el
index aa507f032..bc6de89f8 100644
--- a/tests/test-ai-term--single-window-toggle.el
+++ b/tests/test-ai-term--single-window-toggle.el
@@ -19,7 +19,7 @@
 (add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
 (add-to-list 'load-path (expand-file-name "tests" user-emacs-directory))
 (require 'ai-term)
-(require 'testutil-ghostel-buffers)
+(require 'testutil-terminal-buffers)
 
 ;;; Normal Cases
 
diff --git a/tests/test-auto-dim-config.el b/tests/test-auto-dim-config.el
index 532e7dfae..2686b88f3 100644
--- a/tests/test-auto-dim-config.el
+++ b/tests/test-auto-dim-config.el
@@ -8,8 +8,9 @@
 ;; in ~/code and may be absent on a clean checkout.
 ;;
 ;; The vterm dim-integration tests were removed when the terminal engine moved
-;; to ghostel: ghostel bakes its palette per-terminal (no per-window color
-;; hook), so terminal buffers no longer participate in window dimming.
+;; off vterm.  EAT (the current engine) renders in real Emacs faces and uses the
+;; `default' face for its background, so terminal buffers dim like any other
+;; buffer with no dedicated integration.
 
 ;;; Code:
 
diff --git a/tests/test-term-tmux-history.el b/tests/test-term-tmux-history.el
index 08d39e5bf..633d7a02c 100644
--- a/tests/test-term-tmux-history.el
+++ b/tests/test-term-tmux-history.el
@@ -22,7 +22,7 @@
 (setq load-prefer-newer t)
 (require 'eat)
 (require 'eat-config)
-(require 'testutil-ghostel-buffers)
+(require 'testutil-terminal-buffers)
 
 (defmacro test-term-tmux-history--with-tmux-mock (responses &rest body)
   "Run BODY with `process-file' mocked for tmux RESPONSES.
diff --git a/tests/test-term-toggle--buffer-filter.el b/tests/test-term-toggle--buffer-filter.el
index 6db2ec65c..f56459a06 100644
--- a/tests/test-term-toggle--buffer-filter.el
+++ b/tests/test-term-toggle--buffer-filter.el
@@ -5,8 +5,8 @@
 ;; manages: the predicate `cj/--term-toggle-buffer-p', the list
 ;; `cj/--term-toggle-buffers', and the per-frame window finder
 ;; `cj/--term-toggle-displayed-window'.  F12 opens eshell (run through EAT via
-;; eat-eshell-mode), so it manages eshell-mode buffers.  Standalone eat buffers,
-;; ghostel buffers, and ai-term's agent buffers are NOT F12-managed.
+;; eat-eshell-mode), so it manages eshell-mode buffers.  Standalone eat buffers
+;; and ai-term's agent buffers (also eat) are NOT F12-managed.
 
 ;;; Code:
 
@@ -15,7 +15,7 @@
 (add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
 (add-to-list 'load-path (expand-file-name "tests" user-emacs-directory))
 (require 'eat-config)
-(require 'testutil-ghostel-buffers)
+(require 'testutil-terminal-buffers)
 
 (defun test-term-toggle--cleanup ()
   "Kill leftover agent- and *test-term- prefixed buffers."
@@ -41,7 +41,7 @@
 (ert-deftest test-term-toggle--buffer-p-rejects-agent ()
   "Boundary: ai-term agent buffers are excluded from F12's set."
   (test-term-toggle--cleanup)
-  (let ((buf (cj/test--make-fake-ghostel-buffer "agent [project-a]")))
+  (let ((buf (cj/test--make-fake-eat-buffer "agent [project-a]")))
     (unwind-protect
         (should-not (cj/--term-toggle-buffer-p buf))
       (kill-buffer buf))))
@@ -65,7 +65,7 @@
   "Normal: returns the eshell terminal but not eat/agent buffers."
   (test-term-toggle--cleanup)
   (let ((esh (cj/test--make-fake-eshell-buffer "*test-term-esh*"))
-        (agent (cj/test--make-fake-ghostel-buffer "agent [for-test]")))
+        (agent (cj/test--make-fake-eat-buffer "agent [for-test]")))
     (unwind-protect
         (let ((result (cj/--term-toggle-buffers)))
           (should (memq esh result))
@@ -90,7 +90,7 @@
 (ert-deftest test-term-toggle--displayed-window-skips-agent ()
   "Boundary: only an agent terminal is displayed -> nil (agent not F12-managed)."
   (test-term-toggle--cleanup)
-  (let ((agent (cj/test--make-fake-ghostel-buffer "agent [skip-test]")))
+  (let ((agent (cj/test--make-fake-eat-buffer "agent [skip-test]")))
     (unwind-protect
         (save-window-excursion
           (delete-other-windows)
diff --git a/tests/test-term-toggle--dispatch.el b/tests/test-term-toggle--dispatch.el
index 0d17395cc..43db4c3fe 100644
--- a/tests/test-term-toggle--dispatch.el
+++ b/tests/test-term-toggle--dispatch.el
@@ -15,7 +15,7 @@
 (add-to-list 'load-path (expand-file-name "modules" user-emacs-directory))
 (add-to-list 'load-path (expand-file-name "tests" user-emacs-directory))
 (require 'eat-config)
-(require 'testutil-ghostel-buffers)
+(require 'testutil-terminal-buffers)
 
 (ert-deftest test-term-toggle--dispatch-window-displayed-returns-toggle-off ()
   "Normal: displayed terminal window -> (toggle-off . WIN)."
diff --git a/tests/testutil-ghostel-buffers.el b/tests/testutil-terminal-buffers.el
index 8e26efec4..c2a43a3c7 100644
--- a/tests/testutil-ghostel-buffers.el
+++ b/tests/testutil-terminal-buffers.el
@@ -1,10 +1,8 @@
-;;; testutil-ghostel-buffers.el --- Shared helpers for ghostel/agent buffer tests -*- lexical-binding: t; -*-
+;;; testutil-terminal-buffers.el --- Shared helpers for terminal/agent buffer tests -*- lexical-binding: t; -*-
 
 ;;; Commentary:
-;; Cleanup helpers and a fake-ghostel constructor used across the
-;; ai-term and term-toggle test files.  Replaces the older
-;; testutil-vterm-buffers helpers when the terminal engine moved from
-;; vterm to ghostel.
+;; Cleanup helpers and fake-terminal-buffer constructors (eat, eshell) used
+;; across the ai-term and term-toggle test files.
 
 ;;; Code:
 
@@ -13,10 +11,10 @@
 (defun cj/test--call-as-gui (fn)
   "Call FN, stubbing `env-terminal-p' to return nil (a GUI frame).
 
-The terminal refuse-guard was dropped when ghostel replaced vterm (ghostel
-renders in TTY frames too), so this no longer gates behavior; it is kept as a
-thin passthrough so window-behavior tests written against the old guard keep
-working unchanged."
+The terminal refuse-guard was dropped when the terminal engine moved off vterm
+(EAT and eshell render in TTY frames too), so this no longer gates behavior; it
+is kept as a thin passthrough so window-behavior tests written against the old
+guard keep working unchanged."
   (cl-letf (((symbol-function 'env-terminal-p) (lambda () nil)))
     (funcall fn)))
 
@@ -34,17 +32,6 @@ working unchanged."
   "Kill all live buffers whose name starts with \"*test-term\"."
   (cj/test--kill-buffers-matching-prefix "*test-term"))
 
-(defun cj/test--make-fake-ghostel-buffer (name)
-  "Return a buffer named NAME with `major-mode' set to `ghostel-mode'.
-
-Avoids actually launching a ghostel process by setting the mode
-buffer-locally.  Used by tests that need a buffer satisfying the
-ghostel-mode predicate without the side-effects of `(ghostel)'."
-  (let ((buf (get-buffer-create name)))
-    (with-current-buffer buf
-      (setq-local major-mode 'ghostel-mode))
-    buf))
-
 (defun cj/test--make-fake-eat-buffer (name)
   "Return a buffer named NAME with `major-mode' set to `eat-mode'.
 
@@ -66,5 +53,5 @@ F12 toggle tests that need a buffer satisfying the eshell-mode predicate."
       (setq-local major-mode 'eshell-mode))
     buf))
 
-(provide 'testutil-ghostel-buffers)
-;;; testutil-ghostel-buffers.el ends here
+(provide 'testutil-terminal-buffers)
+;;; testutil-terminal-buffers.el ends here