Dead Code Cleanup

Dead Code Cleanup

Frontend (TypeScript/React)

1. Run knip

bunx knip

Reports: unused exports, unused files, unused dependencies, unused types, configuration hints.

2. Verify each finding

Grep before removing — especially for:

• Tauri plugin deps (e.g. @tauri-apps/plugin-*): May be used only from Rust backend. If no JS imports exist but lib.rs registers the plugin, the npm package is safe to remove.
• Unused exports: If the symbol is used internally in the same file, just remove export instead of deleting.

3. Apply fixes

• Remove export keyword from internally-used-only symbols
• Delete entirely unused functions/types
• bun remove <pkg> for unused dependencies
• Remove empty directories

4. Iterate until bunx knip is clean

Backend (Rust/Tauri)

1. Find unused Tauri commands

Compare generate_handler![] entries in lib.rs against actual frontend imports:

1. List all commands from generate_handler![]
2. Map to camelCase TypeScript names in src/generated/commands.ts
3. Grep src/ (excluding src/generated/, src/paraglide/) for each name
4. Zero imports = unused command

2. Trace the dead code chain

For each unused command, trace downward through each architectural layer:

handler → service → repo → model

At each level, grep to verify no other callers exist before removing:

grep -r "service::module::fn_name" src-tauri/src/

3. Remove in order

1. Delete handler functions from handler/*.rs
2. Remove entries from generate_handler![] in lib.rs
3. Delete dead service functions from service/*.rs
4. Delete dead repo functions from repo/*.rs
5. Delete dead model types from model/*.rs
6. Clean up use imports in each modified file
7. Delete or rewrite tests that reference removed functions

4. Verify with clippy

cargo clippy

If clippy reports new dead_code warnings from transitive removal, repeat the trace-and-remove cycle until clean.

5. Regenerate frontend bindings

cargo tauri-typegen generate

Fix any TS errors in regenerated bindings (e.g. unused Channel import).

Final Verification Checklist

bunx knip           # frontend: zero issues
bun run build       # frontend: compiles
cargo clippy        # backend: zero warnings
cargo test          # backend: all tests pass