refactor: rename debug-wttrin-* commands to wttrin-debug-* with obsolete aliases

The four interactive commands in `wttrin-debug.el` used `debug-wttrin-` as their prefix instead of the package's `wttrin-debug-` prefix. package-lint flags this as a convention violation, and it makes M-x discovery slightly less consistent for users.

Renamed:
- `debug-wttrin-show-raw`   -> `wttrin-debug-show-raw`
- `debug-wttrin-enable`     -> `wttrin-debug-enable`
- `debug-wttrin-disable`    -> `wttrin-debug-disable`
- `debug-wttrin-mode-line`  -> `wttrin-debug-mode-line`

The old names stay available as `define-obsolete-function-alias` entries marked since 0.4.0, so anyone with a keybinding or `(call-interactively 'debug-wttrin-enable)` in their config keeps working. The byte-compiler will emit an obsolescence warning to nudge migration. Aliases will be removed in a future release.

Internal caller `wttrin--debug-mode-line-info` now invokes the new name. Test files renamed to match (`test-debug-wttrin-*.el` -> `test-wttrin-debug-*.el`); inside each, ert-deftest names and function calls were updated.

Added `tests/test-wttrin-debug-aliases.el` to verify each old name resolves via `indirect-function` to the new name and carries `byte-obsolete-info` with the expected target and "0.4.0" version.

1 files changed, 0 insertions, 43 deletions

diff --git a/tests/test-debug-wttrin-disable.el b/tests/test-debug-wttrin-disable.el
deleted file mode 100644
index dc560c3..0000000
--- a/tests/test-debug-wttrin-disable.el
+++ /dev/null
@@ -1,43 +0,0 @@
-;;; test-debug-wttrin-disable.el --- Tests for debug-wttrin-disable -*- lexical-binding: t; -*-
-
-;; Copyright (C) 2025-2026 Craig Jennings
-
-;;; Commentary:
-
-;; Unit tests for debug-wttrin-disable.  Verifies the interactive command
-;; clears `wttrin-debug' and is idempotent when already disabled.
-
-;;; Code:
-
-(require 'ert)
-(require 'wttrin)
-(require 'testutil-wttrin)
-
-(require 'wttrin-debug
-         (expand-file-name "wttrin-debug.el"
-                           (file-name-directory (locate-library "wttrin"))))
-
-;;; Normal Cases
-
-(ert-deftest test-debug-wttrin-disable-normal-flips-from-t-to-nil ()
-  "Calling disable when wttrin-debug is t sets it to nil."
-  (let ((wttrin-debug t))
-    (debug-wttrin-disable)
-    (should-not wttrin-debug)))
-
-(ert-deftest test-debug-wttrin-disable-normal-idempotent-when-already-disabled ()
-  "Calling disable when wttrin-debug is already nil leaves it nil."
-  (let ((wttrin-debug nil))
-    (debug-wttrin-disable)
-    (should-not wttrin-debug)))
-
-;;; Boundary Cases
-
-(ert-deftest test-debug-wttrin-disable-boundary-clears-non-boolean-truthy-value ()
-  "Calling disable replaces any truthy value with nil."
-  (let ((wttrin-debug 'verbose))
-    (debug-wttrin-disable)
-    (should-not wttrin-debug)))
-
-(provide 'test-debug-wttrin-disable)
-;;; test-debug-wttrin-disable.el ends here