feat: Updates-Tab, Aufgaben-Tab ProxmoxPanel, security_only Tasks, 3x Netzwerk-Charts, Updates-Spalte Übersicht, dist-upgrade, DeleteAgent cascades metrics

backend/db/postgres.go

@@ -261,6 +261,7 @@ func (d *Database) migrate() error {
 	d.db.Exec(`ALTER TABLE tasks ADD COLUMN IF NOT EXISTS reboot BOOLEAN DEFAULT FALSE`)
 	d.db.Exec(`ALTER TABLE tasks ADD COLUMN IF NOT EXISTS health_check BOOLEAN DEFAULT FALSE`)
 	d.db.Exec(`ALTER TABLE tasks ADD COLUMN IF NOT EXISTS health_check_timeout INT DEFAULT 600`)
+	d.db.Exec(`ALTER TABLE tasks ADD COLUMN IF NOT EXISTS security_only BOOLEAN DEFAULT FALSE`)
 	d.db.Exec(`ALTER TABLE tasks ADD COLUMN IF NOT EXISTS active BOOLEAN DEFAULT TRUE`)
 	d.db.Exec(`ALTER TABLE tasks ADD COLUMN IF NOT EXISTS last_run TIMESTAMPTZ`)
 	d.db.Exec(`ALTER TABLE tasks ADD COLUMN IF NOT EXISTS next_run TIMESTAMPTZ`)
@@ -759,6 +760,9 @@ func (d *Database) GetAllInstallerInfo() ([]map[string]interface{}, error) {
 }
 
 func (d *Database) DeleteAgent(id string) (bool, error) {
+	// metrics hat keinen FK-Cascade → manuell löschen
+	d.db.Exec("DELETE FROM metrics WHERE agent_id = $1", id)
+	// agents löschen → CASCADE löscht system_data, tasks, config_backups, agent_events
 	res, err := d.db.Exec("DELETE FROM agents WHERE id = $1", id)
 	if err != nil {
 		return false, err

backend/db/tasks.go

@@ -62,7 +62,7 @@ func CalculateNextRun(scheduleType, scheduleTime string, weekday, monthday *int,
 
 func (d *Database) CreateTask(agentID, action, scheduledAt, webhookURL, createdBy string,
 	name, scheduleType, scheduleTime string, weekday, monthday *int,
-	reboot, healthCheck bool, healthCheckTimeout int, active bool) (*models.Task, error) {
+	reboot, healthCheck bool, healthCheckTimeout int, securityOnly bool, active bool) (*models.Task, error) {
 
 	validActions := map[string]bool{"backup": true, "update": true}
 	if !validActions[action] {
@@ -107,12 +107,12 @@ func (d *Database) CreateTask(agentID, action, scheduledAt, webhookURL, createdB
 	err := d.db.QueryRow(`
 		INSERT INTO tasks (agent_id, name, action, scheduled_at, webhook_url, created_by,
 			schedule_type, schedule_time, schedule_weekday, schedule_monthday,
-			reboot, health_check, health_check_timeout, active, next_run)
-		VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15)
+			reboot, health_check, health_check_timeout, security_only, active, next_run)
+		VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16)
 		RETURNING id
 	`, agentID, name, action, schedTime, webhookURL, createdBy,
 		scheduleType, scheduleTime, weekday, monthday,
-		reboot, healthCheck, healthCheckTimeout, active, nextRun).Scan(&taskID)
+		reboot, healthCheck, healthCheckTimeout, securityOnly, active, nextRun).Scan(&taskID)
 	if err != nil {
 		return nil, fmt.Errorf("Task erstellen: %w", err)
 	}
@@ -129,7 +129,7 @@ func scanTask(scan func(dest ...interface{}) error) (*models.Task, error) {
 	var agentName, customerName, customerNumber sql.NullString
 	var name, scheduleType, scheduleTime sql.NullString
 	var scheduleWeekday, scheduleMonthday sql.NullInt32
-	var reboot, healthCheck, active sql.NullBool
+	var reboot, healthCheck, securityOnly, active sql.NullBool
 	var healthCheckTimeout, runCount sql.NullInt32
 
 	err := scan(
@@ -138,7 +138,7 @@ func scanTask(scan func(dest ...interface{}) error) (*models.Task, error) {
 		&resultJSON, &webhookURL, &t.WebhookSent, &webhookResponse,
 		&createdBy, &createdAt,
 		&scheduleType, &scheduleTime, &scheduleWeekday, &scheduleMonthday,
-		&reboot, &healthCheck, &healthCheckTimeout, &active, &lastRun, &nextRun, &runCount,
+		&reboot, &healthCheck, &healthCheckTimeout, &securityOnly, &active, &lastRun, &nextRun, &runCount,
 	)
 	if err != nil {
 		return nil, err
@@ -170,6 +170,7 @@ func scanTask(scan func(dest ...interface{}) error) (*models.Task, error) {
 	if healthCheckTimeout.Valid {
 		t.HealthCheckTimeout = int(healthCheckTimeout.Int32)
 	}
+	t.SecurityOnly = securityOnly.Valid && securityOnly.Bool
 	t.Active = !active.Valid || active.Bool
 	t.RunCount = int(runCount.Int32)
 
@@ -214,7 +215,7 @@ const taskSelectCols = `t.id, t.agent_id, COALESCE(a.name, ''), COALESCE(c.name,
 	t.result, t.webhook_url, t.webhook_sent, t.webhook_response,
 	t.created_by, t.created_at,
 	t.schedule_type, t.schedule_time, t.schedule_weekday, t.schedule_monthday,
-	t.reboot, t.health_check, t.health_check_timeout, t.active, t.last_run, t.next_run, t.run_count`
+	t.reboot, t.health_check, t.health_check_timeout, COALESCE(t.security_only, FALSE), t.active, t.last_run, t.next_run, t.run_count`
 
 const taskFromJoin = `FROM tasks t
 	LEFT JOIN agents a ON a.id = t.agent_id