ui: enhance hover elevation and gold border on active focus card

🎯 What needs to be done

Add smooth hover elevation and a subtle gold border accent (hover:border-gold/30 transition-all duration-200) to the active focus session card on the dashboard overview.

Why this matters

The focus card is a primary interactive gateway on the dashboard. Polishing its hover state provides immediate visual feedback aligned with PACT's luxury aesthetic.

📍 Where to work

• src/features/dashboard/components/active-focus-card.tsx

🧭 Implementation guidance

1. Open src/features/dashboard/components/active-focus-card.tsx.
2. Locate the root container div or GlassCard.
3. Add hover:border-gold/30 hover:shadow-[0_0_20px_rgba(212,175,55,0.08)] transition-all duration-200 to the class list.
4. Verify that visual styling matches docs/DESIGN_SYSTEM.md.

✅ Acceptance criteria

• Active focus card responds with a subtle gold glow on desktop hover.
• No layout shift occurs during hover.
• TypeScript check and lint pass.

🧪 Verification

Open src/features/dashboard/components/active-focus-card.tsx and inspect the root div or GlassCard. Compare the intended styling with docs/DESIGN_SYSTEM.md, then verify the card has a smooth desktop hover glow without layout shift. Run the TypeScript check and lint to confirm the change is clean.