fix(devtools): prevent SSR memory leak in DevTools integration (#5102)

Add SSR guards to DevTools registration functions to prevent memory leaks
in server-side environments by checking both __DEV__ and isClient.

Fixes #4978

Co-authored-by: Patrik Vogel <[email protected]>

Author: PatrikBird

.changeset/slow-masks-learn.md

@@ -0,0 +1,5 @@
+---
+'vee-validate': patch
+---
+
+fix(devtools): prevent SSR memory leak in DevTools integration

packages/vee-validate/src/devtools.ts

@@ -176,6 +176,10 @@ export const refreshInspector = throttle(() => {
 }, 100);
 
 export function registerFormWithDevTools(form: PrivateFormContext) {
+  if (!__DEV__ || !isClient) {
+    return;
+  }
+
   const vm = getCurrentInstance();
   if (!API) {
     const app = vm?.appContext.app;
@@ -197,6 +201,10 @@ export function registerFormWithDevTools(form: PrivateFormContext) {
 }
 
 export function registerSingleFieldWithDevtools(field: PrivateFieldContext) {
+  if (!__DEV__ || !isClient) {
+    return;
+  }
+
   const vm = getCurrentInstance();
   if (!API) {
     const app = vm?.appContext.app;