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/polydawn/refmt/obj/unmarshalTransform.go

@@ -0,0 +1,38 @@
+package obj
+
+import (
+	"reflect"
+
+	"github.com/polydawn/refmt/obj/atlas"
+	. "github.com/polydawn/refmt/tok"
+)
+
+type unmarshalMachineTransform struct {
+	trFunc   atlas.UnmarshalTransformFunc
+	recv_rt  reflect.Type
+	delegate UnmarshalMachine // machine for handling the recv type, stepped to completion before transform applied.
+
+	target_rv reflect.Value // given on Reset, retained until last step, and set into after using trFunc
+	recv_rv   reflect.Value // if set, handle to slot where slice is stored; content must be placed into target at end.
+}
+
+func (mach *unmarshalMachineTransform) Reset(slab *unmarshalSlab, rv reflect.Value, _ reflect.Type) error {
+	mach.target_rv = rv
+	mach.recv_rv = reflect.New(mach.recv_rt).Elem() // REVIEW: this behavior with ptr vs not for in_rt.  the star-star case is prob not what want.
+	return mach.delegate.Reset(slab, mach.recv_rv, mach.recv_rt)
+}
+
+func (mach *unmarshalMachineTransform) Step(driver *Unmarshaller, slab *unmarshalSlab, tok *Token) (done bool, err error) {
+	done, err = mach.delegate.Step(driver, slab, tok)
+	if err != nil {
+		return
+	}
+	if !done {
+		return
+	}
+	// on the last step, use transform, and finally set in real target.
+	tr_rv, err := mach.trFunc(mach.recv_rv)
+	// do attempt the set even if error.  user may appreciate partial progress.
+	mach.target_rv.Set(tr_rv)
+	return true, err
+}