Method SearchUsers

backend/Controllers/UsersController.cs:31–50

── GET /api/users/search?query=... ──────────────────────────────────

([FromQuery] string query)

    // ── GET /api/users/search?query=... ──────────────────────────────────
    [HttpGet("search")]
    public async Task<ActionResult<IEnumerable<UserSummaryDto>>> SearchUsers([FromQuery] string query)
    {
        if (string.IsNullOrWhiteSpace(query))
            return Ok(new List<UserSummaryDto>());

        var users = await _context.Users
            .Where(u => u.Username.Contains(query))
            .Take(10)
            .Select(u => new UserSummaryDto
            {
                Id = u.Id,
                Username = u.Username,
                AvatarUrl = u.AvatarUrl,
                DisplayOfflineAlways = u.DisplayOfflineAlways
            })
            .ToListAsync();

        return Ok(users);
    }

    // ── GET /api/users/me ────────────────────────────────────────────────
    [HttpGet("me")]