[new-plugin] football-match-predictor v1.0.0

[xiao-fan]

Summary

• Add football-match-predictor as a Skill-only Polymarket trading strategy plugin.
• Includes risk-limited football/soccer market discovery, dry-run-first execution flow, explicit confirmation requirements, and strategy attribution via --strategy-id football-match-predictor.
• Routes market access and execution through polymarket-plugin; no private key handling or custom transaction construction.

Validation

• .tools/plugin-store lint skills/football-match-predictor
• Result: Plugin 'football-match-predictor' passed all checks

Checklist

• plugin.yaml, .claude-plugin/plugin.json, SKILL.md, SUMMARY.md, and LICENSE are present
• Version is 1.0.0 across metadata files
• Author GitHub is xiao-fan
• No hardcoded credentials or private key handling
• Dry-run and explicit confirmation flow documented