docs: delete TASK.md

[nvandessel]

No description provided.

[greptile-apps]

Greptile Summary

This PR removes TASK.md, which was a task document for the Vector Index Layer (HNSW) implementation that was completed and merged in PR #149. No files in the codebase reference this document, making it safe to delete.

Confidence Score: 5/5

• This PR is safe to merge with no risk
• This is a straightforward documentation cleanup that removes an obsolete task file. The file is not referenced anywhere in the codebase, and the task it documented was completed in PR feat: vector index layer with HNSW for scalable ANN search #149.
• No files require special attention

Important Files Changed

Filename	Overview
TASK.md	Deleted obsolete task document for completed vector index implementation (PR #149)

_{Last reviewed commit: ce558e7}

[greptile-apps]

_{1 file reviewed, no comments}

_{Edit Code Review Agent Settings | Greptile}