Update dependency zod to v4

Author: renovate[bot]

package.json

@@ -40,7 +40,7 @@
     "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

@@ -5342,7 +5342,7 @@ __metadata:
     tailwindcss: "npm:^3.4.17"
     tailwindcss-logical: "npm:^3.0.1"
     typescript: "npm:^5.8.3"
-    zod: "npm:^3.24.4"
+    zod: "npm:^4.0.0"
   languageName: unknown
   linkType: soft
 
@@ -8109,9 +8109,9 @@ __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: 4.1.10
+  resolution: "zod@npm:4.1.10"
+  checksum: 10c0/e83626ed6873a5f112bcdf8fbdbabbe798ed01e39526fe4fadc8a165c5fc4bf605c7582b93d6a3fcfd115ea4ccc377f106f5be2ea8f0ff341f4bef94486e1916
   languageName: node
   linkType: hard