refactor(cli): simplify CLI with display_name, generic setter, and dict dispatch

Replace 13 _*_NAMES display-name dicts with display_name() from models,
keeping targeted overrides for FireMode and FlameColor. Remove _enum_name
helper and @overload decorators on _find_param. Consolidate 8 repetitive
FlameEffectParam setter functions into a single _set_flame_effect_field
generic helper driven by the _FLAME_EFFECT_SETTERS config dict. Replace
the if/elif dispatch chain in cmd_set with _SET_HANDLERS dict lookup.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: deviantintegral