Fix Transmission remote configuration handling

This commit addresses an issue where the Transmission remote setting wasn't properly preserved between install scripts.
Major changes:

- Fixed environment variable sharing between install-script.sh and main-installer.sh
- Added multiple methods to locate and load the .env.install file
- Removed duplicate log message in dependencies-module.sh
- Improved permission handling for the environment file
- Directly export TRANSMISSION_REMOTE variable before launching main-installer.sh

This ensures the user's choice of remote or local Transmission is correctly honored throughout the installation process.

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

modules/dependencies-module.sh

@@ -4,7 +4,21 @@
 function install_dependencies() {
   log "INFO" "Installing dependencies..."
   
-  # Make sure TRANSMISSION_REMOTE variable is set
+  # Make sure TRANSMISSION_REMOTE variable is set and honored
+  # First check for environment variable that might have been directly set
+  # Then check the .env.install file in various locations
+  
+  # Try relative path first
+  ENV_FILE="$(dirname "$(dirname "$0")")/.env.install"
+  if [ -f "$ENV_FILE" ]; then
+    source "$ENV_FILE"
+    log "INFO" "Loaded transmission settings from environment file: TRANSMISSION_REMOTE=$TRANSMISSION_REMOTE"
+  # Try absolute path as fallback
+  elif [ -f "/opt/develop/transmission-rss-manager/.env.install" ]; then
+    source "/opt/develop/transmission-rss-manager/.env.install"
+    log "INFO" "Loaded transmission settings from absolute path: TRANSMISSION_REMOTE=$TRANSMISSION_REMOTE"
+  fi
+  
   # Always prompt if we didn't get TRANSMISSION_REMOTE from environment or previous steps
   if [ -z "$TRANSMISSION_REMOTE" ]; then
     log "WARN" "TRANSMISSION_REMOTE variable was not set, asking now..."
@@ -31,9 +45,6 @@ function install_dependencies() {
   fi
   
   log "INFO" "Proceeding with Transmission mode: $([ "$TRANSMISSION_REMOTE" = true ] && echo "Remote" || echo "Local")"
-  
-  # Log transmission mode
-  log "INFO" "Proceeding with Transmission mode: $([ "$TRANSMISSION_REMOTE" = true ] && echo "Remote" || echo "Local")"
 
   # Check for package manager
   if command -v apt-get &> /dev/null; then