Replace '/query/' proxy with '/api/' for RESTful endpoints

[coderabbitai]

Background

Currently, the log-viewer-webui client proxies API requests through the '/query/' path, but this doesn't account for other RESTful endpoints.

Objective

• Serve all Fastify routes under the '/api/' path
• Update the Vite configuration to proxy '/api/' to the backend server instead of just '/query/'

References

• Requested in PR: feat(new-webui): MongoCDC Framework #809
• Discussion comment: feat(new-webui): MongoCDC Framework #809 (comment)

Assignee

@junhaoliao

[davemarco]

closed in #1065