refactor: Default log file path to script directory in install, config, and capture scripts.

demo/install.sh

@@ -7,7 +7,7 @@ set -euo pipefail
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 CAPTURE_SCRIPT="${SCRIPT_DIR}/capture-upload.sh"
 CONFIG_FILE="${SCRIPT_DIR}/picupper.conf"
-LOG_FILE="/var/log/picupper.log"
+LOG_FILE="${SCRIPT_DIR}/picupper.log"
 
 echo "=== PicUpper Installer ==="
 echo ""
@@ -56,14 +56,9 @@ chmod +x "$CAPTURE_SCRIPT"
 chmod +x "${SCRIPT_DIR}/uninstall.sh" 2>/dev/null || true
 echo "✓ Scripts are executable"
 
-# Create log file if needed
-if [[ ! -f "$LOG_FILE" ]]; then
-    sudo touch "$LOG_FILE"
-    sudo chown "$USER:$USER" "$LOG_FILE"
-    echo "✓ Log file created: $LOG_FILE"
-else
-    echo "✓ Log file exists: $LOG_FILE"
-fi
+# Touch log file to ensure it exists
+touch "$LOG_FILE" 2>/dev/null || true
+echo "✓ Log file: $LOG_FILE"
 
 # Set up cron job
 CRON_JOB="* * * * * $CAPTURE_SCRIPT >> $LOG_FILE 2>&1"