[MEDIUM] check-types OOM on app/ directory needs resolution

[0xbbjoker]

Summary

The check-types script runs out of memory when type-checking the app/ directory, providing no type safety for the largest part of the codebase.

Impact

• Largest directory (app/) has zero type checking
• All App Router pages, API routes, and layouts are unchecked
• Makes verification checklist unreliable (can't verify "No TypeScript errors")

Recommended Fix

1. Increase Node.js memory limit: NODE_OPTIONS='--max-old-space-size=8192' bun run check-types
2. Split type-checking by directory: check app/, components/, lib/ separately
3. Use tsc --incremental for faster subsequent checks
4. Investigate if specific files/imports cause memory explosion
5. Consider project references (tsconfig paths) to isolate type-checking scope

Source

Identified by GPT Scope Analyst agent during comprehensive plan review (2026-02-06).