[SCR-13] Epic: Upgrade Angular from v13 to v17

[Starosdev]

Overview

The frontend uses Angular 13 which is approaching end-of-life. This epic tracks the incremental upgrade to Angular 17.

Why

• Angular 13 LTS support ending
• Security patches only available in newer versions
• Modern features (standalone components, signals) improve DX
• Better performance with newer Angular versions

Upgrade Path

1. v13 → v14 (Sprint 5)

   • Update Angular CLI, core packages
   • Fix any breaking changes
   • Update TypeScript to 4.7+

2. v14 → v15 → v16 (Sprint 6)

   • Migrate to standalone components (optional)
   • Update Angular Material
   • Fix deprecated APIs

3. v16 → v17 (Sprint 7)

   • Final upgrade
   • Enable signals (optional)
   • Full testing pass

Related Documentation

• https://update.angular.io/
• https://angular.dev/update-guide

Acceptance Criteria

• Angular 17 running in production
• All existing features working
• No visual regressions
• Tests passing

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Linear: SCR-13
Project: Frontend Modernization