Summary

Titan quality sweep — phase 5b + 6.1: decompose domain analysis functions and feature modules.

Domain analysis

• contextData → split file-context from function-context assembly
• diffImpactData → separate git-diff parsing from impact aggregation
• statsData → extract stats collection and quality scoring
• pathData/fnDepsData → extract path formatting helpers

Features

• buildComplexityMetrics → extract metric collection and formatting
• buildStructure → split traversal, cohesion scoring, classification
• buildCFGData/buildDataflowEdges → extract graph construction helpers
• sequenceData → separate BFS traversal from message construction
• validateBoundaryConfig (cog 101→2) → extract per-section validators
• communitiesData (cog 32→4) → extract community building and drift analysis
• triageData (bugs 1.4→0.48) → extract scoring and summary computation

Stacked on

• refactor: decompose AST analysis visitors and domain builder stages #491 (AST + builder decomposition)

Files changed (12)

• src/domain/analysis/context.js, dependencies.js, impact.js, module-map.js
• src/features/complexity.js, structure.js, cfg.js, dataflow.js, sequence.js
• src/features/boundaries.js, communities.js, triage.js

Test plan

• All 1883 tests pass
• Lint clean
• No new cycles