Function createMultiCacheConfig

createMultiCacheConfig(
    rootPath: string,
): {
    cacheDir: string;
    compression: boolean;
    maxAge: number;
    maxSize: number;
}
Create cache configuration for MultiCacheFallbackManager (scan-all only).

This factory function generates the base cache configuration for the MultiCacheFallbackManager, which manages multiple cache directories with fallback logic for cross-cache reading.
Parameters
- rootPath: string
  Project root path
Returns { cacheDir: string; compression: boolean; maxAge: number; maxSize: number }
Base cache configuration for multi-cache manager
- cacheDir: string
  <rootPath>/.angular-modernizer-cache.
- compression: boolean
  Always true.
- maxAge: number
  Maximum entry age in milliseconds (CACHE_AGE.DEFAULT).
- maxSize: number
  Maximum cache size in bytes (CACHE_SIZE.DEFAULT).
Example
```
// In scan-all.ts
import { createMultiCacheConfig } from '@angular-modernizer/core';

const multiCacheManager = new MultiCacheFallbackManager(
  fileSystem,
  ['all', 'solid', 'angular', 'architecture'],
  createMultiCacheConfig(rootPath)
);
```