FINAL IMPLEMENTATION PLAN SUMMARY
==================================

SCOPE (6 items):
  1. FIX: Source map offset bug (1-line change: >= to >)
  2. VERIFY + TEST: Multi-value returns (already fixed, add edge cases)
  3. VERIFY + TEST: Import collision prevention (already fixed, add negative tests)
  4. ADD: Comprehensive negative test suite (12+ tests across 4 groups)
  5. NEW FEATURE: Compiler flag --multi-value-return={full|single}
  6. NEW DOCS: Preprocessor architecture README + ordering policy

RISK: LOW (only 1 code fix + 1 opt-in feature, rest is tests/docs)

TIME: 4-6 hours (with parallelization: 4 hours, sequential: 6.5 hours)

FILES:
  - Final Plan: /Users/jack/mag/dingo/ai-docs/sessions/20251117-224213/01-planning/final-plan.md
  - This Summary: /Users/jack/mag/dingo/ai-docs/sessions/20251117-224213/01-planning/plan-summary.txt
