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/go.uber.org/dig/group.go

@@ -0,0 +1,67 @@
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package dig
+
+import (
+	"fmt"
+	"io"
+	"strings"
+)
+
+const (
+	_groupTag = "group"
+)
+
+type group struct {
+	Name    string
+	Flatten bool
+	Soft    bool
+}
+
+type errInvalidGroupOption struct{ Option string }
+
+var _ digError = errInvalidGroupOption{}
+
+func (e errInvalidGroupOption) Error() string { return fmt.Sprint(e) }
+
+func (e errInvalidGroupOption) writeMessage(w io.Writer, v string) {
+	fmt.Fprintf(w, "invalid option %q", e.Option)
+}
+
+func (e errInvalidGroupOption) Format(w fmt.State, c rune) {
+	formatError(e, w, c)
+}
+
+func parseGroupString(s string) (group, error) {
+	components := strings.Split(s, ",")
+	g := group{Name: components[0]}
+	for _, c := range components[1:] {
+		switch c {
+		case "flatten":
+			g.Flatten = true
+		case "soft":
+			g.Soft = true
+		default:
+			return g, errInvalidGroupOption{Option: c}
+		}
+	}
+	return g, nil
+}