Refactor variable assignments and improve script readability in validate-plex-backups.sh and validate-plex-recovery.sh

- Changed inline variable assignments to separate declaration and assignment for clarity.
- Updated condition checks and log messages for better readability and consistency.
- Added a backup of validate-plex-recovery.sh for safety.
- Introduced a new script run-docker-tests.sh for testing setup in Docker containers.
- Enhanced ssh-login.sh to improve condition checks and logging functionality.

plex/nuclear-plex-recovery.sh

@@ -78,7 +78,8 @@ mkdir -p "$(dirname "$RECOVERY_LOG")"
 log_message() {
     local level="$1"
     local message="$2"
-    local timestamp=$(date '+%Y-%m-%d %H:%M:%S')
+    local timestamp
+    timestamp=$(date '+%Y-%m-%d %H:%M:%S')
     echo "[$timestamp] [$level] $message" | tee -a "$RECOVERY_LOG"
 }
 
@@ -180,7 +181,8 @@ find_best_backup() {
     # Find the most recent backup that exists and has reasonable size
     for backup_file in "${PLEX_DB_DIR}/${backup_type}"-????-??-??*; do
         if [[ -f "$backup_file" ]]; then
-            local file_size=$(stat -f%z "$backup_file" 2>/dev/null || stat -c%s "$backup_file" 2>/dev/null)
+            local file_size
+            file_size=$(stat -f%z "$backup_file" 2>/dev/null || stat -c%s "$backup_file" 2>/dev/null)
 
             # Check if file size is reasonable (> 100MB for main DB, > 500MB for blobs)
             if [[ "$backup_type" == "com.plexapp.plugins.library.db" && $file_size -gt 104857600 ]] || \
@@ -198,7 +200,8 @@ restore_from_backup() {
     print_status "$YELLOW" "Finding and restoring from best available backups..."
 
     # Find best main database backup
-    local main_backup=$(find_best_backup "com.plexapp.plugins.library.db")
+    local main_backup
+    main_backup=$(find_best_backup "com.plexapp.plugins.library.db")
     if [[ -n "$main_backup" ]]; then
         print_status "$GREEN" "Found main database backup: $(basename "$main_backup")"
 
@@ -219,7 +222,8 @@ restore_from_backup() {
     fi
 
     # Find best blobs database backup
-    local blobs_backup=$(find_best_backup "com.plexapp.plugins.library.blobs.db")
+    local blobs_backup
+    blobs_backup=$(find_best_backup "com.plexapp.plugins.library.blobs.db")
     if [[ -n "$blobs_backup" ]]; then
         print_status "$GREEN" "Found blobs database backup: $(basename "$blobs_backup")"
 
@@ -275,7 +279,8 @@ fix_ownership() {
     local blobs_db="${PLEX_DB_DIR}/com.plexapp.plugins.library.blobs.db"
 
     if [[ -f "$main_db" ]]; then
-        local main_owner=$(stat -f%Su:%Sg "$main_db" 2>/dev/null || stat -c%U:%G "$main_db" 2>/dev/null)
+        local main_owner
+        main_owner=$(stat -f%Su:%Sg "$main_db" 2>/dev/null || stat -c%U:%G "$main_db" 2>/dev/null)
         if [[ "$main_owner" == "$PLEX_USER:$PLEX_GROUP" ]]; then
             print_status "$GREEN" "Main database ownership: CORRECT ($main_owner)"
         else