Integrate BACKBEAT SDK and resolve KACHING license validation

Major integrations and fixes:
- Added BACKBEAT SDK integration for P2P operation timing
- Implemented beat-aware status tracking for distributed operations
- Added Docker secrets support for secure license management
- Resolved KACHING license validation via HTTPS/TLS
- Updated docker-compose configuration for clean stack deployment
- Disabled rollback policies to prevent deployment failures
- Added license credential storage (CHORUS-DEV-MULTI-001)

Technical improvements:
- BACKBEAT P2P operation tracking with phase management
- Enhanced configuration system with file-based secrets
- Improved error handling for license validation
- Clean separation of KACHING and CHORUS deployment stacks

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

vendor/github.com/ipld/go-ipld-prime/node/basicnode/string.go

@@ -0,0 +1,149 @@
+package basicnode
+
+import (
+	"github.com/ipld/go-ipld-prime/datamodel"
+	"github.com/ipld/go-ipld-prime/node/mixins"
+)
+
+var (
+	_ datamodel.Node          = plainString("")
+	_ datamodel.NodePrototype = Prototype__String{}
+	_ datamodel.NodeBuilder   = &plainString__Builder{}
+	_ datamodel.NodeAssembler = &plainString__Assembler{}
+)
+
+func NewString(value string) datamodel.Node {
+	v := plainString(value)
+	return &v
+}
+
+// plainString is a simple boxed string that complies with datamodel.Node.
+// It's useful for many things, such as boxing map keys.
+//
+// The implementation is a simple typedef of a string;
+// handling it as a Node incurs 'runtime.convTstring',
+// which is about the best we can do.
+type plainString string
+
+// -- Node interface methods -->
+
+func (plainString) Kind() datamodel.Kind {
+	return datamodel.Kind_String
+}
+func (plainString) LookupByString(string) (datamodel.Node, error) {
+	return mixins.String{TypeName: "string"}.LookupByString("")
+}
+func (plainString) LookupByNode(key datamodel.Node) (datamodel.Node, error) {
+	return mixins.String{TypeName: "string"}.LookupByNode(nil)
+}
+func (plainString) LookupByIndex(idx int64) (datamodel.Node, error) {
+	return mixins.String{TypeName: "string"}.LookupByIndex(0)
+}
+func (plainString) LookupBySegment(seg datamodel.PathSegment) (datamodel.Node, error) {
+	return mixins.String{TypeName: "string"}.LookupBySegment(seg)
+}
+func (plainString) MapIterator() datamodel.MapIterator {
+	return nil
+}
+func (plainString) ListIterator() datamodel.ListIterator {
+	return nil
+}
+func (plainString) Length() int64 {
+	return -1
+}
+func (plainString) IsAbsent() bool {
+	return false
+}
+func (plainString) IsNull() bool {
+	return false
+}
+func (plainString) AsBool() (bool, error) {
+	return mixins.String{TypeName: "string"}.AsBool()
+}
+func (plainString) AsInt() (int64, error) {
+	return mixins.String{TypeName: "string"}.AsInt()
+}
+func (plainString) AsFloat() (float64, error) {
+	return mixins.String{TypeName: "string"}.AsFloat()
+}
+func (x plainString) AsString() (string, error) {
+	return string(x), nil
+}
+func (plainString) AsBytes() ([]byte, error) {
+	return mixins.String{TypeName: "string"}.AsBytes()
+}
+func (plainString) AsLink() (datamodel.Link, error) {
+	return mixins.String{TypeName: "string"}.AsLink()
+}
+func (plainString) Prototype() datamodel.NodePrototype {
+	return Prototype__String{}
+}
+
+// -- NodePrototype -->
+
+type Prototype__String struct{}
+
+func (Prototype__String) NewBuilder() datamodel.NodeBuilder {
+	var w plainString
+	return &plainString__Builder{plainString__Assembler{w: &w}}
+}
+
+// -- NodeBuilder -->
+
+type plainString__Builder struct {
+	plainString__Assembler
+}
+
+func (nb *plainString__Builder) Build() datamodel.Node {
+	return nb.w
+}
+func (nb *plainString__Builder) Reset() {
+	var w plainString
+	*nb = plainString__Builder{plainString__Assembler{w: &w}}
+}
+
+// -- NodeAssembler -->
+
+type plainString__Assembler struct {
+	w *plainString
+}
+
+func (plainString__Assembler) BeginMap(sizeHint int64) (datamodel.MapAssembler, error) {
+	return mixins.StringAssembler{TypeName: "string"}.BeginMap(0)
+}
+func (plainString__Assembler) BeginList(sizeHint int64) (datamodel.ListAssembler, error) {
+	return mixins.StringAssembler{TypeName: "string"}.BeginList(0)
+}
+func (plainString__Assembler) AssignNull() error {
+	return mixins.StringAssembler{TypeName: "string"}.AssignNull()
+}
+func (plainString__Assembler) AssignBool(bool) error {
+	return mixins.StringAssembler{TypeName: "string"}.AssignBool(false)
+}
+func (plainString__Assembler) AssignInt(int64) error {
+	return mixins.StringAssembler{TypeName: "string"}.AssignInt(0)
+}
+func (plainString__Assembler) AssignFloat(float64) error {
+	return mixins.StringAssembler{TypeName: "string"}.AssignFloat(0)
+}
+func (na *plainString__Assembler) AssignString(v string) error {
+	*na.w = plainString(v)
+	return nil
+}
+func (plainString__Assembler) AssignBytes([]byte) error {
+	return mixins.StringAssembler{TypeName: "string"}.AssignBytes(nil)
+}
+func (plainString__Assembler) AssignLink(datamodel.Link) error {
+	return mixins.StringAssembler{TypeName: "string"}.AssignLink(nil)
+}
+func (na *plainString__Assembler) AssignNode(v datamodel.Node) error {
+	if v2, err := v.AsString(); err != nil {
+		return err
+	} else {
+		*na.w = plainString(v2)
+		return nil
+	}
+}
+func (plainString__Assembler) Prototype() datamodel.NodePrototype {
+	return Prototype__String{}
+}