Fix flaky tests caused by unregistered custom SVG icons

Add MatIconTestingModule to tests using components with custom SVG icons
(ai_rocket, github). Icons registered in AppComponent weren't available
in unit tests, causing intermittent "Unable to find icon" errors.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: gugu

frontend/src/app/components/dashboard/db-table-view/db-table-ai-panel/db-table-ai-panel.component.spec.ts

@@ -1,38 +1,31 @@
+import { provideHttpClient } from '@angular/common/http';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
-
-import { DbTableAiPanelComponent } from './db-table-ai-panel.component';
+import { MatIconTestingModule } from '@angular/material/icon/testing';
+import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
 import { Angulartics2Module } from 'angulartics2';
 import { MarkdownService } from 'ngx-markdown';
-import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
-import { provideHttpClient } from '@angular/common/http';
+import { DbTableAiPanelComponent } from './db-table-ai-panel.component';
 
 describe('DbTableAiPanelComponent', () => {
-  let component: DbTableAiPanelComponent;
-  let fixture: ComponentFixture<DbTableAiPanelComponent>;
+	let component: DbTableAiPanelComponent;
+	let fixture: ComponentFixture<DbTableAiPanelComponent>;
 
-  const mockMarkdownService = {
-    parse: jasmine.createSpy('parse').and.returnValue('parsed markdown'),
-  };
+	const mockMarkdownService = {
+		parse: jasmine.createSpy('parse').and.returnValue('parsed markdown'),
+	};
 
-  beforeEach(async () => {
-    await TestBed.configureTestingModule({
-      imports: [
-        Angulartics2Module.forRoot(),
-        DbTableAiPanelComponent,
-        BrowserAnimationsModule
-      ],
-      providers: [
-        provideHttpClient(),
-        { provide: MarkdownService, useValue: mockMarkdownService },
-      ]
-    }).compileComponents();
+	beforeEach(async () => {
+		await TestBed.configureTestingModule({
+			imports: [Angulartics2Module.forRoot(), DbTableAiPanelComponent, BrowserAnimationsModule, MatIconTestingModule],
+			providers: [provideHttpClient(), { provide: MarkdownService, useValue: mockMarkdownService }],
+		}).compileComponents();
 
-    fixture = TestBed.createComponent(DbTableAiPanelComponent);
-    component = fixture.componentInstance;
-    fixture.detectChanges();
-  });
+		fixture = TestBed.createComponent(DbTableAiPanelComponent);
+		component = fixture.componentInstance;
+		fixture.detectChanges();
+	});
 
-  it('should create', () => {
-    expect(component).toBeTruthy();
-  });
+	it('should create', () => {
+		expect(component).toBeTruthy();
+	});
 });