Module db 

Vector database implementation with atomic flush semantics.

This module provides the main VectorDb struct that handles:

• Vector ingestion with validation
• In-memory delta buffering via WriteCoordinator
• Atomic flush with ID allocation
• Snapshot management for consistency

The implementation uses the WriteCoordinator pattern for write path:

• Validation and ID allocation happen in write()
• Delta handles dictionary lookup, centroid assignment, and builds RecordOps
• Flusher applies ops atomically to storage

Structs

VectorDb

Vector database for storing and querying embedding vectors.

Traits

VectorDbRead

Trait for querying the vector db