Documentation and docs need updating and improving

The docs are out of date after the terminal redesign (#22, PR #23) and the README was cut down to logo and badges.

Rewrite the README: what Filesmith does, install, the tools, screenshots of the new UI, build from source.
Review docs/ (adding-models, compression/upscaler plans, dependency audit) for stale content; archive or update.
Document the new UI conventions (docs/design/redesign-direction.md) and keyboard shortcuts.
Check CLAUDE.md and the project layout section match the code.

docs: fix review findings in the user guides

test(docs): scan the new user and developer docs for em-dashes

ci(release): test-only pushes do not cut a release

chore: 0.8.1

Navigation Menu