fix(config): use resource profile defaults for Jobs, DumpJobs, ClusterParallelism

- ClusterParallelism now defaults to recommended profile (1 for small VMs)
- Jobs and DumpJobs now use profile values instead of raw CPU counts
- Small VMs (4 cores, 32GB) will now get 'conservative' or 'balanced' profile
  with lower parallelism to avoid 'out of shared memory' errors

This fixes the issue where small VMs defaulted to ClusterParallelism=2
regardless of detected resources, causing restore failures on large DBs.

internal/config/config.go

@@ -200,11 +200,11 @@ func New() *Config {
 		SSLMode:      sslMode,
 		Insecure:     getEnvBool("INSECURE", false),
 
-		// Backup defaults
+		// Backup defaults - use recommended profile's settings for small VMs
 		BackupDir:        backupDir,
 		CompressionLevel: getEnvInt("COMPRESS_LEVEL", 6),
-		Jobs:             getEnvInt("JOBS", getDefaultJobs(cpuInfo)),
-		DumpJobs:         getEnvInt("DUMP_JOBS", getDefaultDumpJobs(cpuInfo)),
+		Jobs:             getEnvInt("JOBS", recommendedProfile.Jobs),
+		DumpJobs:         getEnvInt("DUMP_JOBS", recommendedProfile.DumpJobs),
 		MaxCores:         getEnvInt("MAX_CORES", getDefaultMaxCores(cpuInfo)),
 		AutoDetectCores:  getEnvBool("AUTO_DETECT_CORES", true),
 		CPUWorkloadType:  getEnvString("CPU_WORKLOAD_TYPE", "balanced"),
@@ -233,8 +233,8 @@ func New() *Config {
 		// Timeouts - default 24 hours (1440 min) to handle very large databases with large objects
 		ClusterTimeoutMinutes: getEnvInt("CLUSTER_TIMEOUT_MIN", 1440),
 
-		// Cluster parallelism (default: 2 concurrent operations for faster cluster backup/restore)
-		ClusterParallelism: getEnvInt("CLUSTER_PARALLELISM", 2),
+		// Cluster parallelism - use recommended profile's setting for small VMs
+		ClusterParallelism: getEnvInt("CLUSTER_PARALLELISM", recommendedProfile.ClusterParallelism),
 
 		// Working directory for large operations (default: system temp)
 		WorkDir: getEnvString("WORK_DIR", ""),

internal/tui/restore_exec.go

@@ -662,7 +662,7 @@ func (m RestoreExecutionModel) View() string {
 
 			// Parse and display error in a clean, structured format
 			errStr := m.err.Error()
-			
+
 			// Extract key parts from the error message
 			errDisplay := formatRestoreError(errStr)
 			s.WriteString(errDisplay)
@@ -1030,7 +1030,7 @@ func formatRestoreError(errStr string) string {
 
 	// First, try to extract a clean error summary
 	errLines := strings.Split(errStr, "\n")
-	
+
 	// Find the main error message (first line or first ERROR:)
 	mainError := ""
 	hint := ""

internal/tui/settings.go

@@ -870,7 +870,7 @@ func (m SettingsModel) View() string {
 			fmt.Sprintf("Database: %s@%s:%d", m.config.User, m.config.Host, m.config.Port),
 			fmt.Sprintf("Backup Dir: %s", m.config.BackupDir),
 			fmt.Sprintf("Compression: Level %d", m.config.CompressionLevel),
-			fmt.Sprintf("Profile: %s | Cluster: %d parallel | Jobs: %d", 
+			fmt.Sprintf("Profile: %s | Cluster: %d parallel | Jobs: %d",
 				m.config.ResourceProfile, m.config.ClusterParallelism, m.config.Jobs),
 		}