[FEAT] : fixed Canonical Schema Syntax Error

[hrshjswniii]

Summary

This PR fixes a minor syntax error in the primary database initialization script (supabase/schema.sql). A duplicate closing bracket and semicolon statement on line 300 was causing SQL execution to fail during bootstrapping.

Closes #3130

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Type of Change

• 🐛 Bug fix (non-breaking change that fixes an issue)
• ✨ New feature (non-breaking change that adds functionality)
• 💥 Breaking change (fix or feature that changes existing behavior)
• 📝 Documentation update
• ♻️ Refactor / code cleanup (no functional change)
• ⚡ Performance improvement
• 🔒 Security fix
• 🧪 Tests only

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What Changed

• Database Schema (supabase/schema.sql): Removed a duplicate closing parenthesis and semicolon ); on line 300 that followed the leaderboard_cache table definition.

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How to Test

1. Connect to a fresh, empty PostgreSQL/Supabase database instance.
2. Run the entire SQL query content of the supabase/schema.sql file.

Expected result:
The script compiles and executes successfully from start to finish with no syntax or database structure errors.

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Checklist

• Linked the related issue above
• Self-reviewed my own diff
• No unnecessary console.log, debug code, or commented-out blocks
• npm run lint passes locally
• No TypeScript errors (npm run type-check)
• Added or updated tests where applicable
• Updated documentation / comments if behavior changed

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Additional Context

None.

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