Update script to receive API key from verification endpoint

The API key is now generated during email verification, not registration.

Changes:
- Extract api_key from verification response
- Save the API key to config after successful verification
- Display confirmation message when API key is received

This works with the new security flow where API keys are only issued to verified users.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

deploy-to-apps.example.sh

@@ -375,6 +375,15 @@ else
     if echo "$VERIFY_RESPONSE" | grep -q '"verified":true'; then
         echo "✅ Email verified successfully!"
         echo ""
+
+        # Extract API key from verification response
+        VERIFIED_API_KEY=$(echo "$VERIFY_RESPONSE" | jq -r '.api_key // ""')
+        if [ -n "$VERIFIED_API_KEY" ] && [ "$VERIFIED_API_KEY" != "null" ]; then
+            SAAC_API_KEY="$VERIFIED_API_KEY"
+            echo "🔑 API key received and saved"
+            echo ""
+        fi
+
         VERIFIED=true
         save_config
         echo ""