Unify dual status classifiers into canonical _status.py

[rysweet]

_status.py and _tui_classify.py return different status sets. Merge into one canonical classifier in _status.py. Make _tui_classify.py call the canonical one with a display-name mapping. Track issue #2799.

Files to modify:

• src/amplihack/fleet/_status.py
• src/amplihack/fleet/_tui_classify.py

Requirements:

1. Identify all status values in both _status.py and _tui_classify.py
2. Create canonical status enum/set in _status.py with all states
3. Make _tui_classify.py import and use the canonical classifier
4. Add display-name mapping in _tui_classify.py for TUI-friendly labels
5. Update any imports across the fleet module
6. All 918+ fleet tests must pass
7. Commit changes on this branch

[rysweet]

Investigation complete — PR #2933 recommends DO-NOT-RECOMMEND unification. The dual classifiers serve different purposes and unifying would add complexity without proportional benefit. Closing.