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/pb/worker_pb/worker_grpc.pb.go

@@ -0,0 +1,121 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.5.1
+// - protoc             v5.29.3
+// source: worker.proto
+
+package worker_pb
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.64.0 or later.
+const _ = grpc.SupportPackageIsVersion9
+
+const (
+	WorkerService_WorkerStream_FullMethodName = "/worker_pb.WorkerService/WorkerStream"
+)
+
+// WorkerServiceClient is the client API for WorkerService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+//
+// WorkerService provides bidirectional communication between admin and worker
+type WorkerServiceClient interface {
+	// WorkerStream maintains a bidirectional stream for worker communication
+	WorkerStream(ctx context.Context, opts ...grpc.CallOption) (grpc.BidiStreamingClient[WorkerMessage, AdminMessage], error)
+}
+
+type workerServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewWorkerServiceClient(cc grpc.ClientConnInterface) WorkerServiceClient {
+	return &workerServiceClient{cc}
+}
+
+func (c *workerServiceClient) WorkerStream(ctx context.Context, opts ...grpc.CallOption) (grpc.BidiStreamingClient[WorkerMessage, AdminMessage], error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	stream, err := c.cc.NewStream(ctx, &WorkerService_ServiceDesc.Streams[0], WorkerService_WorkerStream_FullMethodName, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	x := &grpc.GenericClientStream[WorkerMessage, AdminMessage]{ClientStream: stream}
+	return x, nil
+}
+
+// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
+type WorkerService_WorkerStreamClient = grpc.BidiStreamingClient[WorkerMessage, AdminMessage]
+
+// WorkerServiceServer is the server API for WorkerService service.
+// All implementations must embed UnimplementedWorkerServiceServer
+// for forward compatibility.
+//
+// WorkerService provides bidirectional communication between admin and worker
+type WorkerServiceServer interface {
+	// WorkerStream maintains a bidirectional stream for worker communication
+	WorkerStream(grpc.BidiStreamingServer[WorkerMessage, AdminMessage]) error
+	mustEmbedUnimplementedWorkerServiceServer()
+}
+
+// UnimplementedWorkerServiceServer must be embedded to have
+// forward compatible implementations.
+//
+// NOTE: this should be embedded by value instead of pointer to avoid a nil
+// pointer dereference when methods are called.
+type UnimplementedWorkerServiceServer struct{}
+
+func (UnimplementedWorkerServiceServer) WorkerStream(grpc.BidiStreamingServer[WorkerMessage, AdminMessage]) error {
+	return status.Errorf(codes.Unimplemented, "method WorkerStream not implemented")
+}
+func (UnimplementedWorkerServiceServer) mustEmbedUnimplementedWorkerServiceServer() {}
+func (UnimplementedWorkerServiceServer) testEmbeddedByValue()                       {}
+
+// UnsafeWorkerServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to WorkerServiceServer will
+// result in compilation errors.
+type UnsafeWorkerServiceServer interface {
+	mustEmbedUnimplementedWorkerServiceServer()
+}
+
+func RegisterWorkerServiceServer(s grpc.ServiceRegistrar, srv WorkerServiceServer) {
+	// If the following call pancis, it indicates UnimplementedWorkerServiceServer was
+	// embedded by pointer and is nil.  This will cause panics if an
+	// unimplemented method is ever invoked, so we test this at initialization
+	// time to prevent it from happening at runtime later due to I/O.
+	if t, ok := srv.(interface{ testEmbeddedByValue() }); ok {
+		t.testEmbeddedByValue()
+	}
+	s.RegisterService(&WorkerService_ServiceDesc, srv)
+}
+
+func _WorkerService_WorkerStream_Handler(srv interface{}, stream grpc.ServerStream) error {
+	return srv.(WorkerServiceServer).WorkerStream(&grpc.GenericServerStream[WorkerMessage, AdminMessage]{ServerStream: stream})
+}
+
+// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
+type WorkerService_WorkerStreamServer = grpc.BidiStreamingServer[WorkerMessage, AdminMessage]
+
+// WorkerService_ServiceDesc is the grpc.ServiceDesc for WorkerService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var WorkerService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "worker_pb.WorkerService",
+	HandlerType: (*WorkerServiceServer)(nil),
+	Methods:     []grpc.MethodDesc{},
+	Streams: []grpc.StreamDesc{
+		{
+			StreamName:    "WorkerStream",
+			Handler:       _WorkerService_WorkerStream_Handler,
+			ServerStreams: true,
+			ClientStreams: true,
+		},
+	},
+	Metadata: "worker.proto",
+}