fix(tests): fix all 39 failing specs and re-enable pre-commit hook

- Fix circular dependency in guildwar-attack/defence: import FortificationCardContentComponent directly instead of via @components/shared barrel
- Add index === -1 guard in guildwar-attack, guildwar-defence, guildwar-teams _setChampionsByPower to avoid crash when members input is empty
- Fix MembersStatisticsComponent to guard against undefined member in ngOnInit
- Fix JumpComponent: initialize jump with sautants/author defaults to avoid template crash
- Add provideRouter([]), provideHttpClient(), provideAnimations(), provideNativeDateAdapter() to 26 spec files missing them
- Register Chart.js scales in chart component specs
- Rewrite FrenchPaginator spec to instantiate service directly
- Fix AppComponent spec assertions to match actual component
- Re-enable npm test in .husky/pre-commit

src/app/components/shared/layout/header.component.spec.ts

@@ -1,4 +1,6 @@
 import { ComponentFixture, TestBed } from '@angular/core/testing';
+import { provideRouter } from '@angular/router';
+import { provideHttpClient } from '@angular/common/http';
 
 import { HeaderComponent } from './header.component';
 
@@ -8,7 +10,11 @@ describe('HeaderComponent', () => {
 
     beforeEach(async () => {
         await TestBed.configureTestingModule({
-            imports: [HeaderComponent]
+            imports: [HeaderComponent],
+            providers: [
+                provideRouter([]),
+                provideHttpClient(),
+            ],
         })
             .compileComponents();