feat!(cli): load project .doomrc instead of ci.el

BREAKING CHANGE: Before, 'doom ci' would load
$GIT_WORKING_TREE/.github/ci.el, to give users/projects an opportunity
to provide project-local configuration for bin/doom (mainly for CI/CD).
Now, this ci.el file is no longer loaded and instead, *all* bin/doom
sessions will walk up the file tree and load the first .doomrc it finds.

This gives bin/doom users a more general place configure all of its
commands, and not just 'doom ci' commands.

Extras:
- Adds .doomrc to auto-mode-alist (so that it starts in
  emacs-lisp-mode).

.doomrc

@@ -0,0 +1,54 @@
+;;; .doomrc --- doom runtime config -*- mode: emacs-lisp; lexical-binding: t; -*-
+;;; Commentary:
+;;; Code:
+(require 'doom) ; be silent, byte-compiler
+
+(after! doom-cli-ci
+  ;;; Commit linter types
+  (add-to-list 'doom-ci-commit-types 'module)
+  (add-to-list 'doom-ci-commit-scopeless-types 'module)
+
+  ;;; Commit linter scopes
+  (add-to-list 'doom-ci-commit-scopes "cli")
+  (add-to-list 'doom-ci-commit-scopes "lib")
+  (add-to-list 'doom-ci-commit-scopes "docs")
+  (add-to-list 'doom-ci-commit-scopes '(docs "install" ci-check-docs-scope))
+  (add-to-list 'doom-ci-commit-scopes #'ci-check-module-scope)
+  ;; DEPRECATED Will be removed once modules live in their own repo
+  (add-to-list 'doom-ci-commit-scopes '(release "modules")))
+
+(after! doom-cli-make
+  ;;; Codeowners
+  ;; (dolist (path (cdr (doom-module-load-path (list doom-modules-dir))))
+  ;;   (save-match-data
+  ;;     (when (string-match "/modules/\\([^/]+\\)/\\([^/]+\\)/$" path)
+  ;;       (add-to-list 'doom-make-codeowners
+  ;;                    (cons (format "%s*" (substring (match-string 0 path) 1))
+  ;;                          (list "@doomemacs/maintainers"
+  ;;                                (format "@doomemacs/%s-%s"
+  ;;                                        (match-string 1 path)
+  ;;                                        (match-string 2 path))))))))
+
+  ;;; Documentation exporters
+  ;; (add-to-list 'doom-ci-docs-title-replace '("^Doom Emacs " . ""))
+  )
+
+
+;;; Helpers
+(cl-defun ci-check-module-scope (scope (&key type &allow-other-keys))
+  "Only allow :CATEGORY or MODULE scopes if they actually exist."
+  (seq-find (doom-rpartial
+             #'doom-glob (if (string-prefix-p ":" scope)
+                             (format "%s" (substring scope 1))
+                           (format "*/%s" scope)))
+            (list (doom-dir (dir!) "../modules/")
+                  (doom-dir doom-private-dir "modules/"))))
+
+(defun ci-check-docs-scope (scope _)
+  "Allow any filename in docs/* as a scope for docs commits."
+  (member
+   scope (doom-files-in (doom-path (dir!) "../docs")
+                        :match "\\.org$"
+                        :map #'file-name-base)))
+
+;;; .doomrc ends here