[refactor] create src/platform/assets (#5598)

* [refactor] create src/platform/assets

Per @christian-byrne's feedback. Just bringing this into the repo sooner to clean up from my feature branch

* [fix] code review feedback

src/schemas/assetSchema.ts

@@ -1,39 +0,0 @@
-import { z } from 'zod'
-
-// Zod schemas for asset API validation
-const zAsset = z.object({
-  id: z.string(),
-  name: z.string(),
-  tags: z.array(z.string()),
-  size: z.number(),
-  created_at: z.string().optional()
-})
-
-const zAssetResponse = z.object({
-  assets: z.array(zAsset).optional(),
-  total: z.number().optional(),
-  has_more: z.boolean().optional()
-})
-
-const zModelFolder = z.object({
-  name: z.string(),
-  folders: z.array(z.string())
-})
-
-// Export schemas following repository patterns
-export const assetResponseSchema = zAssetResponse
-
-// Export types derived from Zod schemas
-export type AssetResponse = z.infer<typeof zAssetResponse>
-export type ModelFolder = z.infer<typeof zModelFolder>
-
-// Common interfaces for API responses
-export interface ModelFile {
-  name: string
-  pathIndex: number
-}
-
-export interface ModelFolderInfo {
-  name: string
-  folders: string[]
-}