Add environment variable example and update .gitignore

- Created a new .env.example file to provide a template for environment variables, including database connection details, JWT settings, encryption keys, and external API keys.
- Updated .gitignore to include additional test output directories and archive files, ensuring that unnecessary files are not tracked by Git.
- Removed outdated approval test reports and scripts that are no longer needed, streamlining the project structure.

These changes improve the clarity of environment configuration and maintain a cleaner repository.

frontend/lib/api/workInstruction.ts

@@ -79,10 +79,15 @@ export interface WIWorkItemDetail {
   unit?: string;
   lower_limit?: string;
   upper_limit?: string;
+  base_value?: string;
+  tolerance?: string;
   duration_minutes?: number;
   input_type?: string;
   lookup_target?: string;
   display_fields?: string;
+  condition_base_value?: string;
+  condition_tolerance?: string;
+  condition_unit?: string;
 }
 
 export interface WIWorkItem {