Typo and Lint Sweep overview

Performs automated and semi-automated sweeps for typos, formatting violations, and lint errors across the codebase and documentation — running spell-check tools (cspell, typos-cli) against source code comments, markdown files, and user-facing strings, executing language-specific linters with auto-fix enabled for deterministic corrections, flagging ambiguous cases for human review, batching fixes into atomic pull requests grouped by category, and tracking fix rates and recurrence patterns to identify systemic sources of lint drift. Produces fix PRs with categorized changes, recurrence trend reports, and linter configuration update recommendations. Excludes semantic code changes.