feat: populate CV with real data and fix Docker build

- Replace placeholder CV data with real profile across cv.json and backend seed
- Fix Docker build: npm ci → npm install --legacy-peer-deps --ignore-scripts
  (works around stale lockfile peer dep conflict and iltorb native addon failure on Node 25)

Dockerfile

@@ -3,7 +3,7 @@ FROM node:25-alpine as build
 WORKDIR /app
 
 COPY package*.json ./
-RUN npm ci
+RUN npm install --legacy-peer-deps --ignore-scripts
 
 COPY . .
 RUN npm run build