feat: NCWF-5/6/7/8/9 chess analysis page and engine integration

- NCWF-5: scaffold /analysis route with ChessBoard viewer and navigation
- NCWF-6: FEN / PGN / Game-ID input form with depth selector
- NCWF-7: extend GameApiService with analyzePosition(); add AnalysisService
  with game-wide annotation pipeline; proxy /api/analysis -> :8087
- NCWF-8: EvalTimelineComponent — SVG win-chance chart per ply
- NCWF-9: AnnotatedMoveListComponent — quality labels (!! ! ?! ? ??)
  derived from win-chance delta

Also fix pre-existing app.spec.ts failure (missing provideHttpClient).
Apply project-wide prettier formatting pass.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/app/components/board-actions-bar/board-actions-bar.component.ts

@@ -5,7 +5,7 @@ import { Component, EventEmitter, Input, Output } from '@angular/core';
   standalone: true,
   imports: [],
   templateUrl: './board-actions-bar.component.html',
-  styleUrl: './board-actions-bar.component.css'
+  styleUrl: './board-actions-bar.component.css',
 })
 export class BoardActionsBarComponent {
   @Input() undoAvailable = false;