feat: Integrate consult with xref and enhance denote backlink commands

- Configure consult-xref for xref-show-definitions and xref-show-xrefs
- Add custom denote backlink commands with consult preview support
- Replace denote-backlinks keybindings with new consult-enabled versions
- Fix hardcoded org path to use org-directory variable

lisp/init-completion.el

@@ -35,9 +35,14 @@
    (*is-linux*
     (setq consult-locate-args "plocate --basename --ignore-case")))
 
+  ;; help
   (define-key consult-narrow-map (vconcat consult-narrow-key "?") #'consult-narrow-help)
   (setq consult-narrow-key "<")
 
+  ;; xref
+  (setq xref-show-definitions-function #'consult-xref)
+  (setq xref-show-xrefs-function #'consult-xref)
+
   ;; set some buffer filter
   (setq consult-buffer-filter
         (cl-union consult-buffer-filter

lisp/init-kbd-func.el

@@ -110,7 +110,7 @@ otherwise toggle global-jinx-mode."
 `~/org/my-org-note/20260508T220745==metanote--all-my-metanotes__org.org'"
   (interactive)
   (find-file
-   "~/org/my-org-note/20260508T220745==metanote--all-my-metanotes__org.org"))
+   (concat org-directory "/20260508T220745==metanote--all-my-metanotes__org.org")))
 
 (defun my-denote-find-file ()
   "Find file use denote-file-prompt."
@@ -118,6 +118,27 @@ otherwise toggle global-jinx-mode."
   (let ((denote-excluded-files-regexp "=journal"))
     (find-file (denote-file-prompt))))
 
+(defun my-denote-find-backlink-with-location ()
+  "Like `denote-find-backlink-with-location' but with consult preview."
+  (interactive)
+  (when-let* ((current-file buffer-file-name)
+              (id (or (denote-retrieve-filename-identifier current-file)
+                      (user-error "The current file does not have a Denote identifier")))
+              (files (denote-directory-files nil :omit-current :text-only))
+              (fetcher (lambda () (xref-matches-in-files id files))))
+    (consult-xref fetcher nil)))
+
+(defun my-denote-org-find-backlink-for-heading-with-location ()
+  "Like `denote-org-backlinks-for-heading' but with consult preview."
+  (interactive)
+  (unless (featurep 'denote-org)
+    (require 'denote-org))
+  (when-let* ((heading-id (or (denote-org--get-file-id-and-heading-id-or-context)
+                              (user-error "The current file does not have a denote identifier")))
+              (files (denote-directory-files nil :omit-current :text-only))
+              (fetcher (lambda () (xref-matches-in-files heading-id files))))
+    (consult-xref fetcher nil)))
+
 (defun my-org-table-align-all ()
   "Ajust all table in current buffer."
   (interactive)

lisp/init-kbd.el

@@ -232,8 +232,8 @@
   "C-," 'crux-duplicate-current-line-or-region
   "C-c o l" 'denote-link
   "C-c o L" 'denote-org-link-to-heading
-  "C-c o b" 'denote-backlinks
+  "C-c o b" 'my-denote-find-backlink-with-location
-  "C-c o B" 'denote-org-backlinks-for-heading
+  "C-c o B" 'my-denote-org-find-backlink-for-heading-with-location
   "C-c o t" 'my-org-tree-slide-start)
 
 ;; org-tree-slide-mode