Issue #11: ESLint Unused Variables Warnings (100+ occurrences)

[Mosas2000]

Description

Over 100 unused variable warnings across the codebase.

Error Pattern

warning  'variableName' is defined but never used  @typescript-eslint/no-unused-vars
warning  'importedModule' is defined but never used  @typescript-eslint/no-unused-vars

Examples

• utils/currencyEngine.tsx: 'useEffect' is defined but never used
• utils/socialMetadata.ts: 'baseUrl' is assigned a value but never used
• utils/stacks-network-mocks.ts: 'mockDeep' is defined but never used

Solution

1. Remove unused imports
2. Remove or use unused variables
3. Prefix intentionally unused params with underscore (_param)