refactor(system-utils): major refactoring / adding tests

Theme:
Modularize system-utilities into separate modules.
Clean up any typos, buts, and unused variables.
Add some initial ERT tests for new modules created.

Changes:
- Extract file handling into its own module (file-config)
- Extract keyboard macro management into its own module (keyboard-macros)
- Extract buffer burying (instead of killing) into its own module (undead-buffers)
- Extract all date/time config into its own module (chrono-tools)
- Moved keybinding discovery functionality and help into keybindings module
- Combine flyspell and abbrev (spell-check and autocorrect) to flyspell-and-abbrev.el
- Rename epa-config.el to auth-config.el for auth-source and epa settings.
- Refactor `cj/kill-other-window` for more accurate buffer handling.
- Include "*ert*" in the default bury (don't kill) list as killing it kills test runs.
- Bind C-c M-m to inhibit-mouse-mode
- Remove the unused ledger-file variable in user-constants.el.
- Removed obsolete C-x x m, C-x x r, and C-x x d key mappings.
- C-; b r to call cj/rename-buffer-and-file instead of typo’d function
- Other purely cosmetic comment changes to system-utils.el
ERT tests:
- Rename ERT test definitions to include module scopes (file-config, keyboard-macros)
- Add an ERT test for the timer bell's existence.
- Add ERT tests to cover `cj/kill-buffer-or-bury-alive`, prefix-arg behavior, window-killing commands, and bulk operations.
- Add test `authinfo-file` exists Missing authinfo triggers a debug message
- Add test that `gpg2` executable is on the user’s PATH
- Remove outdated authinfo test.
- Add “Run these tests” note where missing.

1 files changed, 2 insertions, 10 deletions

diff --git a/modules/user-constants.el b/modules/user-constants.el
index 9c401775b..f0fec6200 100644
--- a/modules/user-constants.el
+++ b/modules/user-constants.el
@@ -77,13 +77,7 @@
 
 (defvar article-archive (concat sync-dir "article-archive.org")
   "The location of the org file that stores saved articples to keep.")
-                                        ;
-(defvar ledger-file     (concat sync-dir  "main.ledger")
-  "The location of the user's ledger file.")
-
-(defvar macros-file     (concat sync-dir "macros.el")
-  "The location of the macros file for recorded saved macros via M-f3.")
-
+										;
 (defvar authinfo-file   (concat user-home-dir "/.authinfo.gpg")
   "The location of the encrypted .authinfo or .netrc file.")
 
@@ -113,9 +107,7 @@
                                       inbox-file
                                       contacts-file
                                       article-file
-                                      article-archive
-                                      ledger-file
-									  macros-file))
+									  article-archive))
 
 (provide 'user-constants)
 ;;; user-constants.el ends here.