Why This Matters

progress output should update automatically when new tools are added instead of requiring a second manual mapping in app/output.py.

Read First

• app/output.py
• app/remote/reasoning.py
• app/tools/registered_tool.py
• app/tools/registry.py

Scope

1. Add one registry-backed way to resolve a human-friendly tool label.
2. Update _humanise_message() and app/remote/reasoning.py to use it.
3. Keep the existing human-friendly labels for current tools.

Tests / Coverage

• extend tests/tools/test_registry.py
• add output tests that assert planned-action strings are humanized from real tool metadata
• add one fallback test for unknown tool names

Acceptance Criteria

• app/output.py no longer owns the only source of tool display labels
• current progress output remains readable
• unknown tool names still degrade gracefully