Notion Importer

The enhanced Notion importer reads full Notion export ZIPs instead of treating Notion as loose markdown files.

What It Does

• parses markdown pages and nested page hierarchies from a Notion export ZIP
• parses CSV database exports into searchable database-row memories
• removes Notion UUID filename noise
• preserves page-level smart chunks during import

Codex Port Notes

• portable parsing and chunking logic lives in src/server/plugins/ports/notion-importer.ts
• ZIP extraction stays in the route at src/app/api/v1/plugins/notion-importer/route.ts
• the Import page now uses the richer ZIP preview/import flow instead of the old markdown-only fallback