Support more operations in website rather than in linux terminal

Create/delete repository, Import/export resource file, member management, and so on.

Start by locating the website entry points and the existing Linux-terminal operations for repository creation/deletion, resource import/export, and member management. Clarify which operations and permissions the website must support, then define completion criteria and tests for each workflow; the issue names no files or tests.

Written by the indexing model from the issue text.