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/registry.go

@@ -0,0 +1,110 @@
+package tasks
+
+import (
+	"sync"
+
+	"github.com/seaweedfs/seaweedfs/weed/glog"
+	"github.com/seaweedfs/seaweedfs/weed/worker/types"
+)
+
+var (
+	globalRegistry      *TaskRegistry
+	globalTypesRegistry *types.TaskRegistry
+	globalUIRegistry    *types.UIRegistry
+	registryOnce        sync.Once
+	typesRegistryOnce   sync.Once
+	uiRegistryOnce      sync.Once
+)
+
+// GetGlobalRegistry returns the global task registry (singleton)
+func GetGlobalRegistry() *TaskRegistry {
+	registryOnce.Do(func() {
+		globalRegistry = NewTaskRegistry()
+		glog.V(1).Infof("Created global task registry")
+	})
+	return globalRegistry
+}
+
+// GetGlobalTypesRegistry returns the global types registry (singleton)
+func GetGlobalTypesRegistry() *types.TaskRegistry {
+	typesRegistryOnce.Do(func() {
+		globalTypesRegistry = types.NewTaskRegistry()
+		glog.V(1).Infof("Created global types registry")
+	})
+	return globalTypesRegistry
+}
+
+// GetGlobalUIRegistry returns the global UI registry (singleton)
+func GetGlobalUIRegistry() *types.UIRegistry {
+	uiRegistryOnce.Do(func() {
+		globalUIRegistry = types.NewUIRegistry()
+		glog.V(1).Infof("Created global UI registry")
+	})
+	return globalUIRegistry
+}
+
+// AutoRegister registers a task directly with the global registry
+func AutoRegister(taskType types.TaskType, factory types.TaskFactory) {
+	registry := GetGlobalRegistry()
+	registry.Register(taskType, factory)
+	glog.V(1).Infof("Auto-registered task type: %s", taskType)
+}
+
+// AutoRegisterTypes registers a task with the global types registry
+func AutoRegisterTypes(registerFunc func(*types.TaskRegistry)) {
+	registry := GetGlobalTypesRegistry()
+	registerFunc(registry)
+	glog.V(1).Infof("Auto-registered task with types registry")
+}
+
+// AutoRegisterUI registers a UI provider with the global UI registry
+func AutoRegisterUI(registerFunc func(*types.UIRegistry)) {
+	registry := GetGlobalUIRegistry()
+	registerFunc(registry)
+	glog.V(1).Infof("Auto-registered task UI provider")
+}
+
+// SetDefaultCapabilitiesFromRegistry sets the default worker capabilities
+// based on all registered task types
+func SetDefaultCapabilitiesFromRegistry() {
+	typesRegistry := GetGlobalTypesRegistry()
+
+	var capabilities []types.TaskType
+	for taskType := range typesRegistry.GetAllDetectors() {
+		capabilities = append(capabilities, taskType)
+	}
+
+	// Set the default capabilities in the types package
+	types.SetDefaultCapabilities(capabilities)
+
+	glog.V(1).Infof("Set default worker capabilities from registry: %v", capabilities)
+}
+
+// BuildMaintenancePolicyFromTasks creates a maintenance policy with default configurations
+// from all registered tasks using their UI providers
+func BuildMaintenancePolicyFromTasks() *types.MaintenancePolicy {
+	policy := types.NewMaintenancePolicy()
+
+	// Get all registered task types from the UI registry
+	uiRegistry := GetGlobalUIRegistry()
+
+	for taskType, provider := range uiRegistry.GetAllProviders() {
+		// Get the default configuration from the UI provider
+		defaultConfig := provider.GetCurrentConfig()
+
+		// Set the configuration in the policy
+		policy.SetTaskConfig(taskType, defaultConfig)
+
+		glog.V(3).Infof("Added default config for task type %s to policy", taskType)
+	}
+
+	glog.V(2).Infof("Built maintenance policy with %d task configurations", len(policy.TaskConfigs))
+	return policy
+}
+
+// SetMaintenancePolicyFromTasks sets the default maintenance policy from registered tasks
+func SetMaintenancePolicyFromTasks() {
+	// This function can be called to initialize the policy from registered tasks
+	// For now, we'll just log that this should be called by the integration layer
+	glog.V(1).Infof("SetMaintenancePolicyFromTasks called - policy should be built by the integration layer")
+}