chunking

type Chunk struct {
	Content string
	ChunkInfo
}

type ChunkInfo struct {
	IsChunk     bool
	ChunkIndex  int
	TotalChunks int
}

type Options struct {
	ChunkSize        int     `json:"chunkSize"`        // Maximum size of each chunk in characters
	ChunkOverlap     int     `json:"chunkOverlap"`     // Number of characters to overlap between chunks
	MinChunkSize     float64 `json:"minChunkSize"`     // Minimum chunk size as a fraction of max size (0.0-1.0)
	ChunkingStrategy string  `json:"chunkingStrategy"` // Strategy: sentences, paragraphs, or fixed
}