[Level Design] No tutorial room or difficulty ramp

[niyazmft]

Issue Reference

Audit ID: M-14
Source: level_design_audit.md §L-10

Description

The vertical slice room has 3 grunts vs a 40-HP player on a flat floor. There is no "first room" with 1 enemy to teach basics, no cover tile to teach positioning, no elevation step to teach height advantage.

Affected Files

config/rooms/, scripts/core/combat_room.gd

Acceptance Criteria

• Acceptance criteria:
  • A "Tutorial Room" config exists with 1 grunt, 1 cover tile, 1 elevation step
  • Contextual hints explain movement, cover, and elevation