eksplicit mapping af envs

Docs/ADMIN.md

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+# Admin Dashboard — Social Proximity
+
+## Purpose
+
+The admin dashboard shows anonymised platform statistics — not to monitor users, but to understand if the nudge concept is working.
+
+**What it shows:**
+- How many sessions were started today / this week
+- How many matches were made
+- Which interest categories are most popular (no user-level breakdown)
+- How many active sessions right now
+
+**What it never shows:**
+- Who matched with whom
+- Where people were
+- Individual user data of any kind
+
+## Technology: Next.js (TypeScript)
+
+Simple choice: TypeScript, server-side rendering, easy to deploy. No complex state management needed — stats are read-only and refreshed periodically.
+
+## Project Structure
+
+```
+admin/
+├── src/
+│   └── app/
+│       ├── layout.tsx
+│       ├── page.tsx              ← Main dashboard
+│       └── api/
+│           └── stats/
+│               └── route.ts      ← Proxy to backend /stats
+├── components/
+│   ├── StatCard.tsx              ← Single metric card
+│   ├── InterestChart.tsx         ← Bar chart of top interest categories
+│   └── ActivityChart.tsx         ← Sessions/matches over time (7 days)
+├── package.json
+└── .env.local.example
+```
+
+## Dashboard Layout
+
+```
+┌─────────────────────────────────────────────────────┐
+│  Social Proximity — Admin                           │
+├──────────┬──────────┬──────────┬────────────────────┤
+│ Sessions │ Matches  │ Match %  │ Active now         │
+│  today   │  today   │          │                    │
+├──────────┴──────────┴──────────┴────────────────────┤
+│  Sessions & Matches — last 7 days (line chart)      │
+├─────────────────────────────────────────────────────┤
+│  Top interest categories (bar chart)                │
+└─────────────────────────────────────────────────────┘
+```
+
+## Environment Variables
+
+```env
+BACKEND_URL=http://localhost:8000
+```
+
+## Running Locally
+
+```bash
+cd admin
+npm install
+npm run dev    # runs on localhost:3000
+```
+
+## Access
+
+In MVP the dashboard has no login. It should be deployed behind a reverse proxy with IP restriction or basic auth — not exposed publicly.