As a developer I want the codebase and docs cleaned up so I can work from a clear, accurate baseline

[ChristopherRotnes]

Summary

The codebase has accumulated stale references, retired components, duplicate information across docs, and outdated architecture notes as features have been added and refactored over multiple sprints. A full cleanup pass is needed to ensure CLAUDE.md, README.md, and inline code accurately reflect the current state of the app — nothing more, nothing less.

Priority

Medium

Acceptance criteria

• CLAUDE.md contains no duplicate sections, no references to retired components or patterns, and accurately describes current architecture
• README.md feature list and project structure table match what is actually in the codebase
• Retired/dead files removed or clearly accounted for
• No stale comments in source files referencing old approaches or removed features
• Docs are concise — long sections trimmed where they describe obvious or derivable facts

Out of scope

• Refactoring working code logic
• Adding new features or tests
• Changing any runtime behaviour