Add robust environment sharing for install script

- Create .env.install file to store configuration choices
- Modify main-installer.sh to load environment variables
- Use direct sourcing to ensure environment variables are properly passed
- Add explicit logging of environment variable values
- Implement safer method of handling environment across script execution

🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>

install-script.sh

@@ -1182,5 +1182,20 @@ else
   echo -e "${GREEN}Local Transmission selected.${NC}"
 fi
 
-# Make sure the variable is available to the main installer
-env TRANSMISSION_REMOTE="$TRANSMISSION_REMOTE" "${SCRIPT_DIR}/main-installer.sh"
+# Create a direct environment file for the main installer
+echo "export TRANSMISSION_REMOTE=$TRANSMISSION_REMOTE" > "${SCRIPT_DIR}/.env.install"
+chmod +x "${SCRIPT_DIR}/.env.install"
+
+# Force inclusion in the main installer - modify the main installer temporarily if needed
+if ! grep -q "source.*\.env\.install" "${SCRIPT_DIR}/main-installer.sh"; then
+  # Backup the main installer
+  cp "${SCRIPT_DIR}/main-installer.sh" "${SCRIPT_DIR}/main-installer.sh.bak"
+  
+  # Insert the source command after the shebang line
+  awk 'NR==1{print; print "# Load installation environment variables"; print "if [ -f \"$(dirname \"$0\")/.env.install\" ]; then"; print "  source \"$(dirname \"$0\")/.env.install\""; print "  echo \"Loaded TRANSMISSION_REMOTE=$TRANSMISSION_REMOTE from environment file\""; print "fi"} NR!=1{print}' "${SCRIPT_DIR}/main-installer.sh.bak" > "${SCRIPT_DIR}/main-installer.sh"
+  chmod +x "${SCRIPT_DIR}/main-installer.sh"
+fi
+
+# Now execute the main installer with the environment variables set
+echo "Running main installer with TRANSMISSION_REMOTE=$TRANSMISSION_REMOTE"
+bash -c "source ${SCRIPT_DIR}/.env.install && ${SCRIPT_DIR}/main-installer.sh"