Tasks

• T001 [FR-001] [FR-002] Inspect current native UI/source and record clarified scope/design.
• T002 [FR-001] [FR-002] Capture baseline and extend existing scope/reader tests; prove red.
• T003 [FR-001] Add visible panel title and explicit native scope row.
• T004 [FR-002] [FR-003] Improve number/hunk hierarchy with native TextTags and preserve buffer/copy behavior.
• T005 [FR-003] [FR-004] Verify narrow/large-text/RTL/high contrast and existing navigation/stale response/terminal behavior.
• T006 [FR-001] [FR-002] [FR-003] [FR-004] Update GUI/map docs, retain native evidence and independent two-axis reviews.
• T007 [FR-001] [FR-002] [FR-003] [FR-004] Finalize source/artifacts for delivery verification and publication.

T001→T002 precede implementation; T003/T004 share Changes module and are sequential. T005/T006 precede final source freeze. Full verification/delivery check and publication follow T007. Their outcomes are recorded in the external selected execution report and PR body; the checkbox marks frozen source readiness. No source is changed after final full success.