implemented Asset Subcategory Module

[Mkalbani]

Closes #234

Summary

• Implements asset subcategories for more detailed classification (e.g., IT Equipment → Laptops → Dell).
• Adds asset_subcategories table with id, name, and parentCategoryId.
• Provides CRUD APIs for asset subcategories.
• Links assets (inventory items) to subcategories.

Details

• Generated asset-subcategories NestJS module.
• Defined AssetSubcategory entity and DTOs (create, update).
• Implemented service and controller for CRUD operations.
• Updated asset entity to reference subcategory.

Impact

• Enables hierarchical asset categorization.
• Assets can now be linked to specific subcategories for improved organization and reporting.

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[truthixify]

Thank you @Mkalbani

Appreciate the work you did, LGTM 🚀

[Mkalbani]

@truthixify it's my pleasure!!