First attempt to tink demo

.env.example

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+# Tink API credentials — get these from https://console.tink.com
+TINK_CLIENT_ID=your_client_id_here
+TINK_CLIENT_SECRET=your_client_secret_here
+
+# Must match what you configure in Tink Console under Redirect URIs
+# Local dev: http://localhost:8000/callback
+# Production: https://tink-demo.i80.dk/callback
+TINK_REDIRECT_URI=http://localhost:8000/callback
+
+# Base URL for this app (used in webhook registration etc.)
+APP_BASE_URL=http://localhost:8000
+
+# Secret for signing session cookies (generate with: python -c "import secrets; print(secrets.token_hex(32))")
+SESSION_SECRET=change_me_to_a_random_secret
+
+# Tink API base URL (sandbox = production, use test credentials from Tink Console)
+TINK_API_BASE=https://api.tink.com
+TINK_LINK_BASE=https://link.tink.com