chore: upgrade Zod 4, Vitest 4, and TypeScript 7

Bump major tooling stacks and adapt Zod error APIs (issues/flattenError) plus tsconfig paths for TS 7 baseUrl removal.

Co-authored-by: Cursor <[email protected]>

package.json

@@ -65,7 +65,7 @@
 		"sonner": "^2.0.7",
 		"tailwind-merge": "^3.6.0",
 		"tailwindcss-animate": "^1.0.7",
-		"zod": "^3.24.0"
+		"zod": "^4.4.3"
 	},
 	"devDependencies": {
 		"@biomejs/biome": "2.5.4",
@@ -73,7 +73,7 @@
 		"@tailwindcss/forms": "^0.5.11",
 		"@tailwindcss/postcss": "^4.3.3",
 		"@tailwindcss/typography": "^0.5.20",
-		"@types/node": "^22.10.0",
+		"@types/node": "^26.1.1",
 		"@types/nodemailer": "^7.0.12",
 		"@types/react": "^19.2.17",
 		"@types/react-dom": "^19.2.3",
@@ -86,7 +86,8 @@
 		"prisma": "^7.9.0",
 		"tailwindcss": "^4.3.3",
 		"tsx": "^4.23.1",
-		"typescript": "^5.7.0",
-		"vitest": "^2.1.0"
+		"typescript": "^7.0.2",
+		"vite": "^8.1.5",
+		"vitest": "^4.1.10"
 	}
 }