feat: multiple improvements to library functionality (#50)

## Summary

This PR implements several improvements to the library application:

- Added start and finish date tracking for media items
- Added "Retired" category for abandoned media
- Implemented avatar-based user menu with dropdown navigation
- Added automatic background token refresh to prevent session expiry
- Created centralised logging system with frontend-to-API log forwarding
- Added toast notifications for error handling

## Changes

### Media Tracking (#41)
- Added `dateStarted` and `dateFinished` fields to Books, Games, Manga, Music, and Shows
- Updated TypeScript types, Prisma schema, and API services
- Added manual date input fields to frontend forms
- Properly converts HTML date strings to Date objects before API submission

### Retired Category (#43)
- Added `RETIRED` status to all media type enums
- Updated Prisma schema, frontend dropdowns, and filter buttons
- Added status label handling for retired items

### User Menu (#46)
- Replaced username text with avatar image in header
- Created dropdown menu with navigation items (Users, Audit, Suggestions)
- Added logout button to menu
- Implemented keyboard accessibility (tabindex, role, keyup handlers)

### Token Refresh (#44)
- Implemented automatic token refresh every 13 minutes in background
- Added proactive refresh to prevent token expiry during form filling
- Prevents users from losing form data due to expired sessions

### Centralised Logging (#1)
- Created `/log` endpoint on API to receive frontend logs
- Replaced API console.log calls with @nhcarrigan/logger
- Created ConsoleLoggerService to intercept all console methods on frontend
- Added global error handlers (window.error, unhandledrejection) on frontend
- Added process error handlers (uncaughtException, unhandledRejection, SIGTERM, SIGINT) on API
- All frontend console activity now forwarded to centralised logging

### Error Handling
- Created ToastService and ToastComponent for displaying errors
- Integrated with GlobalErrorHandler and HTTP interceptor
- Added accessibility features (keyboard navigation, ARIA attributes)
- Set toast opacity to 40% for optimal readability

### Testing & Build
- Fixed pre-existing test failure for GET / route (now returns version info)
- Added ESM module mocking (jsdom, marked, dompurify, @nhcarrigan/logger)
- Configured Jest with isolatedModules to handle TypeScript errors
- Excluded test-setup.ts from production build
- All tests passing (123 total)
- Build passing with no errors

## Test Plan

- [x] All tests pass (123 tests)
- [x] Build passes without errors
- [x] Lint passes (only pre-existing warnings)
- [x] Date fields work correctly on all media types
- [x] Retired status displays and filters properly
- [x] Avatar menu opens/closes correctly with keyboard and mouse
- [x] Token refresh prevents session expiry
- [x] Toast notifications appear for errors
- [x] Frontend logs forward to API successfully
- [x] Root route returns version information

Closes #41
Closes #43
Closes #44
Closes #46
Closes #1

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Co-authored-by: Hikari <hikari@nhcarrigan.com>
Reviewed-on: #50
Co-authored-by: Naomi Carrigan <commits@nhcarrigan.com>
Co-committed-by: Naomi Carrigan <commits@nhcarrigan.com>

api/prisma/schema.prisma

@@ -24,7 +24,9 @@ model Game {
   platform     String?
   status       GameStatus
   dateAdded    DateTime  @default(now())
+  dateStarted  DateTime?
   dateCompleted DateTime?
+  dateFinished DateTime?
   rating       Int?      @db.Int @default(0)
   notes        String?
   coverImage   String?
@@ -39,6 +41,7 @@ enum GameStatus {
   PLAYING
   COMPLETED
   BACKLOG
+  RETIRED
 }
 
 model Book {
@@ -48,6 +51,7 @@ model Book {
   isbn         String?
   status       BookStatus
   dateAdded    DateTime  @default(now())
+  dateStarted  DateTime?
   dateFinished DateTime?
   rating       Int?      @db.Int @default(0)
   notes        String?
@@ -63,6 +67,7 @@ enum BookStatus {
   READING
   FINISHED
   TO_READ
+  RETIRED
 }
 
 model Music {
@@ -72,7 +77,9 @@ model Music {
   type         MusicType
   status       MusicStatus
   dateAdded    DateTime  @default(now())
+  dateStarted  DateTime?
   dateCompleted DateTime?
+  dateFinished DateTime?
   rating       Int?      @db.Int @default(0)
   notes        String?
   coverArt     String?
@@ -93,6 +100,7 @@ enum MusicStatus {
   LISTENING
   COMPLETED
   WANT_TO_LISTEN
+  RETIRED
 }
 
 model Art {
@@ -115,7 +123,9 @@ model Show {
   type         ShowType
   status       ShowStatus
   dateAdded    DateTime   @default(now())
+  dateStarted  DateTime?
   dateCompleted DateTime?
+  dateFinished DateTime?
   rating       Int?       @db.Int @default(0)
   notes        String?
   coverImage   String?
@@ -137,6 +147,7 @@ enum ShowStatus {
   WATCHING
   COMPLETED
   WANT_TO_WATCH
+  RETIRED
 }
 
 model Manga {
@@ -145,7 +156,9 @@ model Manga {
   author       String
   status       MangaStatus
   dateAdded    DateTime    @default(now())
+  dateStarted  DateTime?
   dateCompleted DateTime?
+  dateFinished DateTime?
   rating       Int?        @db.Int @default(0)
   notes        String?
   coverImage   String?
@@ -160,6 +173,7 @@ enum MangaStatus {
   READING
   COMPLETED
   WANT_TO_READ
+  RETIRED
 }
 
 model User {