Task 11: Build CoreSkills tile ("Repeat Medications")

Created CoreSkillsTile component that presents skills as medications
with frequency dosing metaphor:
- Half-width card with amber dot header "REPEAT MEDICATIONS"
- 5 skill items with teal icon containers (lucide-react icons)
- Each item shows: skill name, frequency (e.g., "Twice daily"),
  start year, years of experience, and "Active" status badge
- Uses medication metaphor: "Data Analysis · Twice daily · Since
  2016 · 9 yrs"
- Data from src/data/skills.ts with user-specified frequencies
- Styled to match GP System concept with 6px radius items on
  dashboard background (#F0F5F4)
- Integrated into DashboardLayout in right column next to
  LatestResultsTile

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

src/components/DashboardLayout.tsx

@@ -4,6 +4,7 @@ import { TopBar } from './TopBar'
 import Sidebar from './Sidebar'
 import { PatientSummaryTile } from './tiles/PatientSummaryTile'
 import { LatestResultsTile } from './tiles/LatestResultsTile'
+import { CoreSkillsTile } from './tiles/CoreSkillsTile'
 
 const prefersReducedMotion = window.matchMedia('(prefers-reduced-motion: reduce)').matches
 
@@ -101,6 +102,7 @@ export function DashboardLayout() {
             {/* LatestResultsTile — half width (left) */}
             <LatestResultsTile />
             {/* CoreSkillsTile — half width (right) */}
+            <CoreSkillsTile />
             {/* LastConsultationTile — full width */}
             {/* CareerActivityTile — full width */}
             {/* EducationTile — full width */}