Admin UI add maintenance menu (#6944)

* add ui for maintenance

* valid config loading. fix workers page.

* refactor

* grpc between admin and workers

* add a long-running bidirectional grpc call between admin and worker
* use the grpc call to heartbeat
* use the grpc call to communicate
* worker can remove the http client
* admin uses http port + 10000 as its default grpc port

* one task one package

* handles connection failures gracefully with exponential backoff

* grpc with insecure tls

* grpc with optional tls

* fix detecting tls

* change time config from nano seconds to seconds

* add tasks with 3 interfaces

* compiles reducing hard coded

* remove a couple of tasks

* remove hard coded references

* reduce hard coded values

* remove hard coded values

* remove hard coded from templ

* refactor maintenance package

* fix import cycle

* simplify

* simplify

* auto register

* auto register factory

* auto register task types

* self register types

* refactor

* simplify

* remove one task

* register ui

* lazy init executor factories

* use registered task types

* DefaultWorkerConfig remove hard coded task types

* remove more hard coded

* implement get maintenance task

* dynamic task configuration

* "System Settings" should only have system level settings

* adjust menu for tasks

* ensure menu not collapsed

* render job configuration well

* use templ for ui of task configuration

* fix ordering

* fix bugs

* saving duration in seconds

* use value and unit for duration

* Delete WORKER_REFACTORING_PLAN.md

* Delete maintenance.json

* Delete custom_worker_example.go

* remove address from workers

* remove old code from ec task

* remove creating collection button

* reconnect with exponential backoff

* worker use security.toml

* start admin server with tls info from security.toml

* fix "weed admin" cli description

weed/worker/tasks/vacuum/vacuum_detector.go

@@ -0,0 +1,132 @@
+package vacuum
+
+import (
+	"time"
+
+	"github.com/seaweedfs/seaweedfs/weed/glog"
+	"github.com/seaweedfs/seaweedfs/weed/worker/types"
+)
+
+// VacuumDetector implements vacuum task detection using code instead of schemas
+type VacuumDetector struct {
+	enabled          bool
+	garbageThreshold float64
+	minVolumeAge     time.Duration
+	scanInterval     time.Duration
+}
+
+// Compile-time interface assertions
+var (
+	_ types.TaskDetector               = (*VacuumDetector)(nil)
+	_ types.PolicyConfigurableDetector = (*VacuumDetector)(nil)
+)
+
+// NewVacuumDetector creates a new simple vacuum detector
+func NewVacuumDetector() *VacuumDetector {
+	return &VacuumDetector{
+		enabled:          true,
+		garbageThreshold: 0.3,
+		minVolumeAge:     24 * time.Hour,
+		scanInterval:     30 * time.Minute,
+	}
+}
+
+// GetTaskType returns the task type
+func (d *VacuumDetector) GetTaskType() types.TaskType {
+	return types.TaskTypeVacuum
+}
+
+// ScanForTasks scans for volumes that need vacuum operations
+func (d *VacuumDetector) ScanForTasks(volumeMetrics []*types.VolumeHealthMetrics, clusterInfo *types.ClusterInfo) ([]*types.TaskDetectionResult, error) {
+	if !d.enabled {
+		return nil, nil
+	}
+
+	var results []*types.TaskDetectionResult
+
+	for _, metric := range volumeMetrics {
+		// Check if volume needs vacuum
+		if metric.GarbageRatio >= d.garbageThreshold && metric.Age >= d.minVolumeAge {
+			// Higher priority for volumes with more garbage
+			priority := types.TaskPriorityNormal
+			if metric.GarbageRatio > 0.6 {
+				priority = types.TaskPriorityHigh
+			}
+
+			result := &types.TaskDetectionResult{
+				TaskType:   types.TaskTypeVacuum,
+				VolumeID:   metric.VolumeID,
+				Server:     metric.Server,
+				Collection: metric.Collection,
+				Priority:   priority,
+				Reason:     "Volume has excessive garbage requiring vacuum",
+				Parameters: map[string]interface{}{
+					"garbage_ratio": metric.GarbageRatio,
+					"volume_age":    metric.Age.String(),
+				},
+				ScheduleAt: time.Now(),
+			}
+			results = append(results, result)
+		}
+	}
+
+	glog.V(2).Infof("Vacuum detector found %d volumes needing vacuum", len(results))
+	return results, nil
+}
+
+// ScanInterval returns how often this detector should scan
+func (d *VacuumDetector) ScanInterval() time.Duration {
+	return d.scanInterval
+}
+
+// IsEnabled returns whether this detector is enabled
+func (d *VacuumDetector) IsEnabled() bool {
+	return d.enabled
+}
+
+// Configuration setters
+
+func (d *VacuumDetector) SetEnabled(enabled bool) {
+	d.enabled = enabled
+}
+
+func (d *VacuumDetector) SetGarbageThreshold(threshold float64) {
+	d.garbageThreshold = threshold
+}
+
+func (d *VacuumDetector) SetScanInterval(interval time.Duration) {
+	d.scanInterval = interval
+}
+
+func (d *VacuumDetector) SetMinVolumeAge(age time.Duration) {
+	d.minVolumeAge = age
+}
+
+// GetGarbageThreshold returns the current garbage threshold
+func (d *VacuumDetector) GetGarbageThreshold() float64 {
+	return d.garbageThreshold
+}
+
+// GetMinVolumeAge returns the minimum volume age
+func (d *VacuumDetector) GetMinVolumeAge() time.Duration {
+	return d.minVolumeAge
+}
+
+// GetScanInterval returns the scan interval
+func (d *VacuumDetector) GetScanInterval() time.Duration {
+	return d.scanInterval
+}
+
+// ConfigureFromPolicy configures the detector based on the maintenance policy
+func (d *VacuumDetector) ConfigureFromPolicy(policy interface{}) {
+	// Type assert to the maintenance policy type we expect
+	if maintenancePolicy, ok := policy.(interface {
+		GetVacuumEnabled() bool
+		GetVacuumGarbageRatio() float64
+	}); ok {
+		d.SetEnabled(maintenancePolicy.GetVacuumEnabled())
+		d.SetGarbageThreshold(maintenancePolicy.GetVacuumGarbageRatio())
+	} else {
+		glog.V(1).Infof("Could not configure vacuum detector from policy: unsupported policy type")
+	}
+}