PictureServer

Audit and remove dead code from the codebase. Use for: finding unused Java parameters, fields, methods, imports; unused CSS classes/rules; unused JS exports or functions; removing leftover symbols after refactors; cleaning up after feature removal. Produces a report first, then removes each item after confirmation.

Review documentation files for consistency with the codebase. Use for: checking README.md, copilot-instructions.md, and other markdown docs for outdated class names, package names, method names, config keys, build commands, source layout, tech stack versions, and missing or incorrect information; also detect duplicated information across docs and suggest deduplication with a canonical source. Reports all inconsistencies and asks for confirmation before fixing.