Add missing .eslintrc.json files to limit imports properly

Editor assessment

An unusually informative chore: the subject explains not just what ('add missing .eslintrc.json files') but why ('to limit imports properly'), turning a mundane lint-config addition into a legible entry. Naming the exact filename aids grep, and the 64-character length keeps it truncation-free. No body is required since the header is self-contained, though noting which import rules changed and what enforcement now catches would help future maintainers tune the config. Type, mood, and structure all check out cleanly.