Task 252: Fix DAG Orphan Node report.ai_costs

Status: DONE

Description

DAG validation reported report.ai_costs as an orphan node with no connections. Fixed by adding dependency on report.tech_overview (the parent meta-report).

Changes

• Added edge: report.ai_costs → report.tech_overview via DAG CLI
• Updated dag-seed.ts to include the dependency in the seed definition
• DAG validation now shows 5 warnings (all expected dialogue source notes), 0 orphans

Stats

• DAG: 65 nodes, 320 edges (was 319)
• All 47 DAG tests pass