fix(yasnippet): C-d clears field; ensure insert state on expand

config.el

@@ -1260,6 +1260,21 @@ Otherwise: runs interactive ement-connect, then opens rooms after sync."
   ;; TAB in Evil insert: with yasnippet-capf first in CAPF list,
   ;; corfu shows snippets as expandable items — no manual TAB override needed.
   ;; Standard indent-for-tab-command handles org-cycle / indent fallback.
+
+  ;; Evil + yasnippet: when entering a field, select default text so typing replaces it.
+  ;; Without this, default text is not visually selected in Evil insert state.
+  (add-hook 'yas-before-expand-snippet-hook
+            (lambda () (when (evil-normal-state-p) (evil-insert-state))))
+
+  ;; Delete field content with a single key: C-d clears current field content
+  (add-hook 'yas-keymap-disable-hook
+            (lambda () (not (yas--snippets-at-point))))
+
+  (define-key yas-keymap (kbd "C-d")
+    (lambda ()
+      (interactive)
+      (delete-region (yas-field-start (yas-current-field))
+                     (yas-field-end (yas-current-field)))))
   )
 
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