- Removed world module-level variable from look.py
- look.cmd_look() now uses player.location.get_viewport() instead of world.get_viewport()
- look.cmd_look() uses zone.contents_near() to find nearby entities instead of iterating global players/mobs lists
- Wrapping calculations use zone.width/height/toroidal instead of world properties
- Added type check for player.location being a Zone instance
- Removed look.world injection from server.py
- Updated all tests to remove look.world injection
- spawn_mob() and combat commands also migrated to use Zone (player.location)
- Removed orphaned code from test_mob_ai.py and test_variant_prefix.py
Movement commands now access the zone through player.location instead of
a module-level world variable. send_nearby_message uses
zone.contents_near() to find nearby entities, eliminating the need for
the global players dict and manual distance calculations.
Tests updated to create zones and add entities via location assignment.
The variant handler now supports prefix matching for directional variants.
This allows 'pa hi' to match 'parry high', 'pa lo' to match 'parry low', etc.
Implementation:
- First tries exact match on variant key
- Falls back to prefix matching if no exact match
- Returns unique match if exactly one variant starts with the prefix
- Shows disambiguation message if multiple variants match
- Shows error with valid options if no variants match
Tests cover exact match, prefix match, ambiguous prefix, no match,
single-char prefix, case-insensitivity, and preservation of target args.
