[FEATURE] Add new User Log endpoint

[elmurci]

Problem
GET /v1/user/me returns both data references and logs for the user. Currently, when querying logs, we need to call this endpoint which doesn't have pagination.

Feature request: add new /v1/user/log endpoint with pagination

I want to:

Display log records in pages of 20-50 items
Show "Page 3 of 25" in UIs
Avoid loading thousands of records at once
something like: GET /v1/user/log?limit=20&offset=40

  Response: {
    "data": [...20 records...],
    "total": 500,
    "limit": 20,
    "offset": 40
  }