Add files subcommand for file manipulation

[Davidyz]

• vectorcode files ls command lists all files in a collection;
• vectorcode files rm command (followed by file paths) removes embeddings for files from a collection.
• after rm, remove the collection if it's empty
• add the files subcommand to the LSP server
• create codecompanion tools for files_ls and files_rm

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.76%. Comparing base (d57bea4) to head (c78170f).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #230      +/-   ##
==========================================
+ Coverage   99.75%   99.76%   +0.01%     
==========================================
  Files          21       24       +3     
  Lines        1627     1715      +88     
==========================================
+ Hits         1623     1711      +88     
  Misses          4        4              

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[rodionlim]

Looks really good, thank you for the changes. Would it be helpful to also have this as a codecompanion tool, so we can list out the files directly in the chat buffer?

[Davidyz]

Looks really good, thank you for the changes. Would it be helpful to also have this as a codecompanion tool, so we can list out the files directly in the chat buffer?

Yes I'll do it, but for a slightly different reason: I want to be able to remove files from the database from within the chat. I'll need to also update the LSP server before adding the new tools.