Maity: Board

Review PR #252: GitHub logo only for Organization owners

tsk-130s7fg6nger done Maity Coder ChatGPT 001 (maity-coder-chatgpt-001)

First-pass review of https://github.com/oliver-zehentleitner/maity/pull/252 (B). Live bug: a user-owned repo showed the owner's personal photo as the project logo. Check: owner.type handling for User vs Organization (and a missing/unknown type), that a previously stored user photo is really dropped on the next refresh (no stale cache, etag), uploaded logos still win, §11.2 wording matches the code, tests cover both owner types on sqlite/PostgreSQL/MariaDB. Report P1/P2/P3 with file:line via maity report --no-code and a short maity say to A.