google drive tool: new endpoint for google drive tool auth deletion

[chantelle-cohere]

Description

This PR adds a new endpoint which handles deleting google drive tool auth.
HTTP Request Method: DELETE
Path: /v1/tool/auth
Request Body:

{
    "tool_id": "<tool_id_to_be_deleted>"
}

Note that currently, the only supported tool_id is google_drive.

Expected Response:

{
    "status": "success"
}

Issue

fix TLK-875

Dependencies

None

TODO

• Add tests and docs: Please include testing and documentation for your changes

AI Description

This PR introduces a new endpoint for deleting tool authentication and updates the GoogleDriveAuth class to include a delete_tool_auth method.

Summary

The changes in this PR allow for the deletion of tool authentication, specifically for Google Drive. The new endpoint, /tool/auth, is added to the router in src/backend/routers/auth.py. It defines the logic for removing the corresponding ToolAuth from the database for the requesting user. Additionally, the GoogleDriveAuth class in src/backend/tools/google_drive/auth.py is updated to include a delete_tool_auth method, which handles the deletion process.

Changes

• Introduce a new endpoint, /tool/auth, for deleting tool authentication.
• Implement the delete_tool_auth method in the GoogleDriveAuth class.

[cla-assistant]

All committers have signed the CLA.

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[chantelle-cohere]

The new endpoint currently returns {"status": "success"} on successful tool auth deletion. Should it return anything else?
CC @tomtobac / @knajjars / @BeatrixCohere

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 65.00000% with 28 lines in your changes missing coverage. Please review.

Project coverage is 74.58%. Comparing base (14c77f2) to head (2f9d084).
Report is 1 commits behind head on main.

Files	Patch %	Lines
src/backend/routers/auth.py	16.66%	20 Missing ⚠️
src/backend/tools/base.py	14.28%	6 Missing ⚠️
...ckend/services/logger/strategies/structured_log.py	60.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #654   +/-   ##
=======================================
  Coverage   74.58%   74.58%           
=======================================
  Files         256      258    +2     
  Lines       11057    11136   +79     
=======================================
+ Hits         8247     8306   +59     
- Misses       2810     2830   +20     

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[tianjing-li]

Some small requests

[tianjing-li]

lgtm

[lusmoura]

LGTM! Left one comment and would appreciate it if you could add a couple of unit tests