Fix indentation of keyword argument arrays/hashes in ruby-mode

* lisp/progmodes/ruby-mode.el (ruby-smie-rules): Check for ':' and
'=>' as previous tokens, and handle symbols ending with ':' to
properly indent keyword argument arrays and hashes when
ruby-bracketed-args-indent is nil.

* lisp/progmodes/ruby-ts-mode.el (ruby-ts--parent-call-or-bol):
Handle arrays/hashes that are children of 'pair' nodes (keyword
arguments) to ensure consistent indentation.

* test/lisp/progmodes/ruby-mode-resources/ruby-bracketed-args-indent.rb:
Add test cases for keyword argument arrays and hashes with both
symbol-colon and hash-rocket syntax.

When ruby-bracketed-args-indent is nil, arrays and hashes used as
keyword argument values now indent by ruby-indent-level from the
line start, matching the documented behavior and fixing inconsistent
indentation (bug#74517).

(https://lists.gnu.org/archive/html/emacs-devel/2025-11/msg00939.html)

lisp/progmodes/ruby-mode.el

@@ -847,7 +847,10 @@ This only affects the output of the command `ruby-toggle-block'."
     (`(:before . ,(or "(" "[" "{"))
      (cond
       ((and (not (eq ruby-bracketed-args-indent t))
-            (smie-rule-prev-p "," "(" "["))
+            (or (smie-rule-prev-p "," "(" "[" "=>")
+                (save-excursion
+                  (let ((tok (ruby-smie--backward-token)))
+                    (and tok (string-match ":\\'" tok))))))
        (cons 'column (current-indentation)))
       ((and (equal token "{")
             (not (smie-rule-prev-p "(" "{" "[" "," "=>" "=" "return" ";" "do"))

lisp/progmodes/ruby-ts-mode.el

@@ -871,7 +871,11 @@ a statement container is a node that matches
      ((and
        (not (eq ruby-bracketed-args-indent t))
        (string-match-p "\\`array\\|hash\\'" (treesit-node-type parent))
-       (equal (treesit-node-parent parent) found)
+       (or (equal (treesit-node-parent parent) found)
+           ;; When the array/hash is part of a pair (keyword argument),
+           ;; check if the pair's parent is the found node.
+           (and (equal (treesit-node-type (treesit-node-parent parent)) "pair")
+                (equal (treesit-node-parent (treesit-node-parent parent)) found)))
        ;; Grandparent is not a parenless call.
        (or (not (equal (treesit-node-type found) "argument_list"))
            (equal (treesit-node-type (treesit-node-child found 0))

test/lisp/progmodes/ruby-mode-resources/ruby-bracketed-args-indent.rb

@@ -37,6 +37,24 @@ def foo
   )
 end
 
+some_method(arg, include: [
+  :value1,
+  :value2
+])
+
+some_method(arg, options: {
+  key: "value"
+})
+
+some_method(arg, :include => [
+  :value1,
+  :value2
+])
+
+some_method(arg, :options => {
+  :key => "value"
+})
+
 # Local Variables:
 # ruby-bracketed-args-indent: nil
 # End: