0.5.2 — Review hygiene + refreshed screenshot

Cleans up the warnings flagged by the Obsidian community plugin automated review. The plugin already passed in 0.5.1; this just clears the warning list.

Changes

• Removed builtin-modules package — replaced with Node's module.builtinModules.
• Pinned all dependency versions exactly (no ^ / ~ ranges).
• Committed package-lock.json so the automated review can verify the bundle.
• Replaced 7 of 8 !important CSS rules with .claude-native-root specificity.
• Dropped the :has() selector for the diff line-border indicator (perf warning).
• Refreshed the top README screenshot showing the new Modern Sharp picker with multi-provider tabs and reasoning-effort selector.

No functional changes.