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/erasure_coding/ec_register.go

@@ -0,0 +1,81 @@
+package erasure_coding
+
+import (
+	"fmt"
+
+	"github.com/seaweedfs/seaweedfs/weed/worker/tasks"
+	"github.com/seaweedfs/seaweedfs/weed/worker/types"
+)
+
+// Factory creates erasure coding task instances
+type Factory struct {
+	*tasks.BaseTaskFactory
+}
+
+// NewFactory creates a new erasure coding task factory
+func NewFactory() *Factory {
+	return &Factory{
+		BaseTaskFactory: tasks.NewBaseTaskFactory(
+			types.TaskTypeErasureCoding,
+			[]string{"erasure_coding", "storage", "durability"},
+			"Convert volumes to erasure coded format for improved durability",
+		),
+	}
+}
+
+// Create creates a new erasure coding task instance
+func (f *Factory) Create(params types.TaskParams) (types.TaskInterface, error) {
+	// Validate parameters
+	if params.VolumeID == 0 {
+		return nil, fmt.Errorf("volume_id is required")
+	}
+	if params.Server == "" {
+		return nil, fmt.Errorf("server is required")
+	}
+
+	task := NewTask(params.Server, params.VolumeID)
+	task.SetEstimatedDuration(task.EstimateTime(params))
+
+	return task, nil
+}
+
+// Shared detector and scheduler instances
+var (
+	sharedDetector  *EcDetector
+	sharedScheduler *Scheduler
+)
+
+// getSharedInstances returns the shared detector and scheduler instances
+func getSharedInstances() (*EcDetector, *Scheduler) {
+	if sharedDetector == nil {
+		sharedDetector = NewEcDetector()
+	}
+	if sharedScheduler == nil {
+		sharedScheduler = NewScheduler()
+	}
+	return sharedDetector, sharedScheduler
+}
+
+// GetSharedInstances returns the shared detector and scheduler instances (public access)
+func GetSharedInstances() (*EcDetector, *Scheduler) {
+	return getSharedInstances()
+}
+
+// Auto-register this task when the package is imported
+func init() {
+	factory := NewFactory()
+	tasks.AutoRegister(types.TaskTypeErasureCoding, factory)
+
+	// Get shared instances for all registrations
+	detector, scheduler := getSharedInstances()
+
+	// Register with types registry
+	tasks.AutoRegisterTypes(func(registry *types.TaskRegistry) {
+		registry.RegisterTask(detector, scheduler)
+	})
+
+	// Register with UI registry using the same instances
+	tasks.AutoRegisterUI(func(uiRegistry *types.UIRegistry) {
+		RegisterUI(uiRegistry, detector, scheduler)
+	})
+}