[aperson30]

Replace the Team page placeholders for Harleen Sachdev and Ishita Ahelleya with their supplied portraits as compressed WebP assets (about 23 KB each). Adjust their avatar framing so faces are centered at similar sizes, including hover and reduced-motion states. Update the existing team-page test to expect both photos.

Validation:

• Visually checked both portraits in the local Team page.
• Local Team page tests: 2 passed; type checking passed after the framing adjustment.
• Original photo commit passed full CI and CodeQL; checks are rerunning on the amended commit.
• Original local production build and ESLint for the changed TypeScript files passed.
• Repository-wide lint has four pre-existing errors in unchanged files; CI treats lint as advisory.

One commit. No backend or deployment changes.