Task D: UnqualifiedImportProcessor - COMPLETE ✅

Status: Success
Implementation: 192 lines in unqualified_imports.go
Tests: 8/8 passing (unqualified_imports_test.go)
Integration: Ready for Task E (preprocessor pipeline)

Details: /Users/jack/mag/dingo/ai-docs/sessions/20251118-234501/02-implementation/task-D-changes.md
