Create basic query interface for testing vector search

[monday-sun]

Type: Implementation
Priority: Low

Description

Implement a basic way to test the vector search functionality, such as a command-line interface or internal testing utility.

Tasks

• Create a simple command-line flag or internal function for testing vector search
• Implement functionality to take query text and generate its embedding
• Perform search via the repository using the generated embedding
• Display search results with similarity scores
• Add documentation for the testing interface

Related to

Part of the vector search implementation plan - "Implement Vector Search with sqlite-vec" milestone. This is marked as optional in the implementation plan.