Fixed infinite path mapping loop between dsnas1 and dsnas2

- Added path detection to prevent recursive analysis of paths already in destination format
- Added special handling for same logical path on different mounts
- Added early exit in process_copy for identical source and destination paths

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

usr/local/bin/torrent-mover

@@ -191,6 +191,17 @@ main() {
         local dst
         dst=$(get_destination "${dir}")
         
+        # Detect same-path mappings (different mounts)
+        if [[ "${dir}" != "${dst}" && "${dir}" =~ ^/mnt/dsnas2/ && "${dst}" =~ ^/mnt/dsnas1/ ]]; then
+            local dir_suffix="${dir#/mnt/dsnas2/}"
+            local dst_suffix="${dst#/mnt/dsnas1/}"
+            if [[ "${dir_suffix}" == "${dst_suffix}" ]]; then
+                log_info "Source and destination are the same logical location with different mounts: ${dir_suffix}"
+                mark_processed "${hash}"
+                continue  # Skip to next torrent
+            fi
+        fi
+        
         # Initialize warned_dirs for this directory if needed
         if [[ -n "${dir}" ]]; then
             [[ -z "${warned_dirs["${dir}"]+x}" ]] && warned_dirs["${dir}"]=0