Update dependency zod to v4

Author: renovate[bot]

package.json

@@ -41,7 +41,7 @@
     "sass": "^1.87.0",
     "sharp": "^0.34.1",
     "stripe": "^18.1.0",
-    "zod": "^3.24.4"
+    "zod": "^4.0.0"
   },
   "devDependencies": {
     "@eslint/eslintrc": "^3",

yarn.lock

@@ -5854,7 +5854,7 @@ __metadata:
     tailwindcss-logical: "npm:^3.0.1"
     tsx: "npm:^4.20.6"
     typescript: "npm:^5.8.3"
-    zod: "npm:^3.24.4"
+    zod: "npm:^4.0.0"
   languageName: unknown
   linkType: soft
 
@@ -9191,10 +9191,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"zod@npm:^3.24.4":
-  version: 3.25.76
-  resolution: "zod@npm:3.25.76"
-  checksum: 10c0/5718ec35e3c40b600316c5b4c5e4976f7fee68151bc8f8d90ec18a469be9571f072e1bbaace10f1e85cf8892ea12d90821b200e980ab46916a6166a4260a983c
+"zod@npm:^4.0.0":
+  version: 4.1.12
+  resolution: "zod@npm:4.1.12"
+  checksum: 10c0/b64c1feb19e99d77075261eaf613e0b2be4dfcd3551eff65ad8b4f2a079b61e379854d066f7d447491fcf193f45babd8095551a9d47973d30b46b6d8e2c46774
   languageName: node
   linkType: hard