Chore/public alpha cleanup

[DenisGeide]

Summary

Describe what changed and why.

Alpha scope

• This keeps SocketLens honest about what works today.
• This does not present demo/mock behavior as production behavior.
• This does not add accounts, telemetry, hosted sync, billing, or broad enterprise scope without an agreed issue.

Type of change

• Bug fix
• Feature
• UI/UX improvement
• Documentation
• Refactor
• Build/CI/release
• Other

Testing

Commands run:

• npm run check
• npm run typecheck
• npm run build
• cargo check --manifest-path apps/desktop/src-tauri/Cargo.toml
• Manual app test
• Not applicable

Describe manual testing, including capture mode and OS when relevant.

Screenshots or recordings

Required for visible UI changes.

Documentation

• README/docs updated
• Not needed

Risk and rollout notes

Call out migrations, file-format changes, privacy implications, release risks, or known limitations.

Checklist

• I kept the change focused and runnable.
• I did not add fake or placeholder-only product behavior.
• I did not commit secrets, private payloads, or generated build output.
• I updated README/docs when setup, commands, UI behavior, privacy behavior, or release behavior changed.