fix: deduplicate toCamelCase and guard importJson item shape

- Export toCamelCase from render-token.ts and import it in
  render-msw-file.ts instead of maintaining a second copy
- Guard each mock entry in applyScenario with typeof m?.key === 'string'
  so malformed importJson payloads (nulls, bare numbers, etc.) skip
  silently instead of throwing a TypeError

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: constantant

apps/devtools-panel/src/app/scenario-store.token.ts

@@ -62,6 +62,7 @@ export const SCENARIO_STORE = new InjectionToken<ScenarioStore>('SCENARIO_STORE'
 
     function applyScenario(scenario: Scenario): void {
       for (const m of scenario.mocks) {
+        if (typeof m?.key !== 'string') continue;
         if (!bridge.mocks().has(m.key)) continue;
         if (m.value !== undefined) {
           bridge.sendControl(m.key, 'resolve', { value: m.value });

tools/openapi-resource-gen/src/generators/api-resource/render-msw-file.ts

@@ -1,12 +1,5 @@
 import type { EndpointModel } from './endpoint-model';
-import { toPascalCase } from './render-token';
-
-function toCamelCase(str: string): string {
-  const parts = str.split(/[-_.]+/).filter(Boolean);
-  if (parts.length === 0) return str;
-  const first = parts[0].charAt(0).toLowerCase() + parts[0].slice(1);
-  return first + parts.slice(1).map((s) => s.charAt(0).toUpperCase() + s.slice(1)).join('');
-}
+import { toPascalCase, toCamelCase } from './render-token';
 
 /** Convert OpenAPI path template {param} to MSW :param notation. */
 function toMswPath(apiPath: string): string {

tools/openapi-resource-gen/src/generators/api-resource/render-token.ts

@@ -9,7 +9,7 @@ export function toPascalCase(str: string): string {
     .join('');
 }
 
-function toCamelCase(str: string): string {
+export function toCamelCase(str: string): string {
   const parts = str.split(/[-_.]+/).filter(Boolean);
   const first = parts[0].charAt(0).toLowerCase() + parts[0].slice(1);
   return first + parts.slice(1).map((s) => s.charAt(0).toUpperCase() + s.slice(1)).join('');