lint fix

Run npm run lint and fix any errors.

Lint Tools (in order)

1. Biome (biome check --write) - Formatter + linter, auto-fixes
2. oxlint (oxlint --fix) - Fast linter, auto-fixes
3. tsgo (--noEmit) - Type checking (manual fix required)
4. secretlint - Secret detection

Config Files

• biome.json, .oxlintrc.json, .secretlintrc.json