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- Remove outdated authinfo test.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, 8 insertions, 5 deletions

diff --git a/init.el b/init.el
index f2e5c8669..9d8bff094 100644
--- a/init.el
+++ b/init.el
@@ -23,18 +23,21 @@
 (add-to-list 'load-path (concat user-emacs-directory "custom/"))
 (add-to-list 'load-path (concat user-emacs-directory "modules/"))
 
-(require 'user-constants)   ;; named paths for locating files
+(require 'user-constants)   ;; paths for files referenced in this config
 (require 'host-environment) ;; convenience functions re: host environment
 (require 'config-utilities) ;; functions useful when modifying Emacs config
 (require 'system-defaults)  ;; native comp; log; unicode, backup, exec path
-(require 'keybindings)      ;; system-wide keybindings
+(require 'keybindings)      ;; system-wide keybindings and keybinding discovery
 
 ;; -------------------------- Utilities And Libraries --------------------------
 
+(require 'auth-config)      ;; emacs gnupg integration
 (require 'custom-functions) ;; custom function library w/ keybindings
-(require 'system-utils)     ;; external file handlers, timers, process monitor
-(require 'epa-config)       ;; emacs gnupg integration
+(require 'file-config)      ;; files to open outside of Emacs
+(require 'keyboard-macros)  ;; keyboard macro management
+(require 'system-utils)     ;; timers, process monitor
 (require 'text-config)      ;; text settings and functionality
+(require 'undead-buffers)   ;; bury rather than kill specific buffers
 
 ;; ------------------------------- User Interface ------------------------------
 
@@ -47,7 +50,7 @@
 
 (require 'diff-config)         ;; ediff and ztree configuration
 (require 'eshell-vterm-config) ;; shell and terminal configuration
-(require 'flyspell-config)     ;; spell check configuration
+(require 'flyspell-and-abbrev) ;; spell check and auto-correct
 (require 'help-utils)          ;; search: arch-wiki, devdoc, tldr, wikipedia
 (require 'help-config)         ;; info, man, help config
 (require 'latex-config)        ;; need to fix