close #108 - generate rsa keys for JWT token

[Idodi-dev]

fix issue #108 - ability to generate local rsa keys and mount them into the docker container (including windows permission weirdness)

Summary by CodeRabbit

Release Notes

• New Features

  • Enhanced confirmation dialogs for critical actions (delete, remove).
  • Centralized notification system for success and error feedback with improved styling.

• Bug Fixes

  • Improved error handling and messaging across the application.
  • Better error recovery in registration flows.

• Documentation

  • Added RSA key-based JWT configuration guide for backend setup.

• Chores

  • Security improvements: backend now runs as non-root user with proper certificate handling.
  • Refined component architecture with dependency injection updates.

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📝 Walkthrough

Walkthrough

The pull request introduces a comprehensive refactoring of Angular frontend dependency injection patterns, replacing constructor-based DI with the inject() API, and introduces centralized feedback and confirmation services to replace scattered MatSnackBar and native confirm() calls. Backend Docker configuration adds certificate support and non-root user execution.

Changes

Cohort / File(s)	Summary
CI/CD & Workflow .github/workflows/branch-enforcer.yml	Adds duplicate pull_request_target trigger and introduces duplicate error handling with sequential setFailed() calls in catch block.
Backend Infrastructure backend/Dockerfile, backend/README.md	Dockerfile adds certificate directory creation, certificate copying, ownership changes, and non-root user execution. README documents RSA-based JWT setup with key generation steps.
New Shared Services frontend/src/app/shared/services/feedback.service.ts, frontend/src/app/shared/services/confirm-dialog.service.ts, frontend/src/app/shared/components/confirm-dialog/*	Introduces FeedbackService wrapping MatSnackBar for success/error messaging and ConfirmDialogService providing dialog-based confirmations; adds ConfirmDialogComponent template and styles.
Management Components Refactor frontend/src/app/list/components/categories-management/categories-management.component.ts, frontend/src/app/list/components/items-management/items-management.component.ts, frontend/src/app/list/components/units-management/units-management.component.ts, frontend/src/app/list/components/shopping-list/shopping-list.component.ts	Migrate from constructor to inject() API; replace MatSnackBar with FeedbackService; replace native confirm() with ConfirmDialogService for deletions.
Dialog Components Refactor frontend/src/app/list/components/categories-management/category-dialog/category-dialog.component.ts, frontend/src/app/list/components/category-dialog/category-dialog.component.ts, frontend/src/app/list/components/items-management/item-dialog/item-dialog.component.ts, frontend/src/app/list/components/list-details/list-item-dialog/list-item-dialog.component.ts, frontend/src/app/list/components/list-share-dialog/list-share-dialog.component.ts, frontend/src/app/list/components/shopping-list/list-dialog/list-dialog.component.ts, frontend/src/app/list/components/units-management/unit-dialog/unit-dialog.component.ts	Migrate from constructor-based DI to inject(); replace signal-based state with direct property initialization; replace MatSnackBar with FeedbackService; refactor form initialization inline.
Shared UI Components Refactor frontend/src/app/shared/components/category/category.component.ts, frontend/src/app/shared/components/item/item.component.ts, frontend/src/app/shared/components/list-item/list-item.component.ts, frontend/src/app/shared/components/unit/unit.component.ts, frontend/src/app/shared/components/unit/unit.component.html	Migrate from constructor to inject() API; replace MatSnackBar with FeedbackService; replace native confirm() with ConfirmDialogService; add Portuguese localization for messages; refactor form initialization.
Service Cleanup frontend/src/app/shared/services/auth.service.ts, frontend/src/app/shared/services/category.service.ts, frontend/src/app/shared/services/list-permission.service.ts, frontend/src/app/shared/services/unit.service.ts	Remove redundant constructors and simplify error handling; remove console.error logging in auth service error handler.
Global Styling frontend/src/styles.scss	Add .success-snackbar and .error-snackbar CSS classes with custom MDC snackbar color properties for feedback service integration.

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~45 minutes

Possibly related PRs

• draft UX: Improve operation feedback using SnackBars #100: Implements the same UX refactor with FeedbackService and ConfirmDialogService across identical frontend components.
• fix: Standardize dependency injection using inject() #98: Modifies the same frontend components to replace constructor-based DI with inject() API and updates the same GitHub workflow file.

Suggested reviewers

• omatheusmesmo

Poem

🐰 A rabbit's ode to refactored code,
No snackbars scattered down the road,
With inject() fresh and dialogs clean,
The prettiest DI I've ever seen!
From constructor chains we now are free,
Hop along with FeedbackService! 🎉

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The PR title 'close #108 - generate rsa keys for JWT token' directly corresponds to the main objective of generating RSA keys for JWT token handling, which is reflected across multiple file changes including backend Dockerfile updates and frontend service refactoring.

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📝 Coding Plan

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[github-actions]

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