🧹 Code health improvements: formatting and syntax standardization

[NITISH-R-G]

🎯 What:

• Applied dart fix --apply to address styling and formatting issues (curly_braces_in_flow_control_structures).
• Applied dart format lib/ to all Dart files to standardize whitespace, indentation, and structure.

💡 Why:

• To ensure codebase health and enforce standard formatting guidelines across the entire repository. This directly improves consistency and code maintainability as outlined in standard repository controller responsibilities.

✅ Verification:

• Ran dart analyze, and all code violations and syntax issues have been successfully resolved.
• Ran flutter test test/, and all 14 tests completed and passed successfully without errors.
• Code review was completely successful.

✨ Result:

• Improved overall code readability.
• Consistent application of linting rules. No logic breaks or regressions.

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PR created automatically by Jules for task 13346410576743255121 started by @NITISH-R-G

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