mg-05: Coverage Decision Form minigame for sis03_cyber_insurance

[alihussain6692]

Implements MG-05 — Coverage Decision Form for sis03_cyber_insurance.

Changes:

• Interactive 4-section radio form replacing static notes4 object
• Section 1: Coverage Position (A1 full/A2 proportional/A3 decline)
• Section 2: Act-of-War Exclusion Decision
• Section 3: Regulatory Disclosure posture
• Section 4: Trent Water Third-Party Scope
• Submit button disabled until all 4 sections selected
• On submit: writes coverage_decision, war_exclusion_invoked,
  disclosure_position, trent_water_assessed, coverage_decision_made
• coverage_decision_made=true triggers Eleanor's debrief eventMapping
• Shows Eleanor outcome quote matching A1/A2/A3 selection
• Uses type: "coverage_decision_form" dispatch pattern