docs-util: fix how data model name is inferred (#8351)

www/utils/packages/utils/src/str-formatting.ts

@@ -28,6 +28,10 @@ export function camelToTitle(str: string): string {
     .trim()
 }
 
+export function camelToPascal(str: string): string {
+  return `${str.charAt(0).toUpperCase()}${str.substring(1)}`
+}
+
 export function snakeToWords(str: string): string {
   return str.replaceAll("_", " ").toLowerCase()
 }
@@ -39,6 +43,10 @@ export function snakeToPascal(str: string): string {
     .join("")
 }
 
+export function isSnakeCase(str: string): boolean {
+  return /[a-z]+_[a-z]+/g.test(str)
+}
+
 export function kebabToTitle(str: string): string {
   return str
     .split("-")