chore: update deprecated npm dependencies

[MohsinHashmi-DataInn]

Summary

During devcontainer setup, npm reports several deprecation warnings for transitive dependencies. These should be addressed to improve security and maintainability.

Deprecated Dependencies

High Priority (Direct or Security)

• eslint@8.57.1 → Upgrade to ESLint 9.x (requires config migration to flat config)
• bootstrap@4.6.2 → Evaluate upgrade path (CoreUI dependency)

Medium Priority (Build Tools)

• rimraf@3.0.2 / rimraf@2.7.1 → Update to v4+
• glob@7.2.3 → Update to v9+
• inflight@1.0.6 → Remove (memory leak, used by old glob)
• fstream@1.0.12 → Update or remove

Low Priority (Transitive - Babel)

• @babel/plugin-proposal-private-property-in-object → @babel/plugin-transform-private-property-in-object
• @babel/plugin-proposal-private-methods → @babel/plugin-transform-private-methods
• @babel/plugin-proposal-optional-chaining → @babel/plugin-transform-optional-chaining
• @babel/plugin-proposal-class-properties → @babel/plugin-transform-class-properties
• @babel/plugin-proposal-numeric-separator → @babel/plugin-transform-numeric-separator
• @babel/plugin-proposal-nullish-coalescing-operator → @babel/plugin-transform-nullish-coalescing-operator

Low Priority (Other Transitive)

• @humanwhocodes/config-array → @eslint/config-array (fixed with ESLint upgrade)
• @humanwhocodes/object-schema → @eslint/object-schema (fixed with ESLint upgrade)
• lodash.isequal@4.5.0 → Use require('node:util').isDeepStrictEqual
• airbnb-prop-types@2.16.0 → prop-types-tools

Notes

• Most Babel plugin warnings are transitive from react-scripts or similar build tools
• ESLint 9 upgrade requires migration to flat config format
• Bootstrap upgrade may require significant UI testing due to CoreUI dependency

Related

• Warnings observed during devcontainer startup (fix(devcontainer): resolve maven wrapper and npm sync errors #334)