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/blevesearch/zapx/v15/build.go

@@ -0,0 +1,186 @@
+//  Copyright (c) 2017 Couchbase, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 		http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package zap
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"math"
+	"os"
+
+	"github.com/blevesearch/vellum"
+)
+
+const Version uint32 = 15
+
+const Type string = "zap"
+
+const fieldNotUninverted = math.MaxUint64
+
+func (sb *SegmentBase) Persist(path string) error {
+	return PersistSegmentBase(sb, path)
+}
+
+// WriteTo is an implementation of io.WriterTo interface.
+func (sb *SegmentBase) WriteTo(w io.Writer) (int64, error) {
+	if w == nil {
+		return 0, fmt.Errorf("invalid writer found")
+	}
+
+	n, err := persistSegmentBaseToWriter(sb, w)
+	return int64(n), err
+}
+
+// PersistSegmentBase persists SegmentBase in the zap file format.
+func PersistSegmentBase(sb *SegmentBase, path string) error {
+	flag := os.O_RDWR | os.O_CREATE
+
+	f, err := os.OpenFile(path, flag, 0600)
+	if err != nil {
+		return err
+	}
+
+	cleanup := func() {
+		_ = f.Close()
+		_ = os.Remove(path)
+	}
+
+	_, err = persistSegmentBaseToWriter(sb, f)
+	if err != nil {
+		cleanup()
+		return err
+	}
+
+	err = f.Sync()
+	if err != nil {
+		cleanup()
+		return err
+	}
+
+	err = f.Close()
+	if err != nil {
+		cleanup()
+		return err
+	}
+
+	return err
+}
+
+type bufWriter struct {
+	w *bufio.Writer
+	n int
+}
+
+func (br *bufWriter) Write(in []byte) (int, error) {
+	n, err := br.w.Write(in)
+	br.n += n
+	return n, err
+}
+
+func persistSegmentBaseToWriter(sb *SegmentBase, w io.Writer) (int, error) {
+	br := &bufWriter{w: bufio.NewWriter(w)}
+
+	_, err := br.Write(sb.mem)
+	if err != nil {
+		return 0, err
+	}
+
+	err = persistFooter(sb.numDocs, sb.storedIndexOffset, sb.fieldsIndexOffset,
+		sb.docValueOffset, sb.chunkMode, sb.memCRC, br)
+	if err != nil {
+		return 0, err
+	}
+
+	err = br.w.Flush()
+	if err != nil {
+		return 0, err
+	}
+
+	return br.n, nil
+}
+
+func persistStoredFieldValues(fieldID int,
+	storedFieldValues [][]byte, stf []byte, spf [][]uint64,
+	curr int, metaEncode varintEncoder, data []byte) (
+	int, []byte, error) {
+	for i := 0; i < len(storedFieldValues); i++ {
+		// encode field
+		_, err := metaEncode(uint64(fieldID))
+		if err != nil {
+			return 0, nil, err
+		}
+		// encode type
+		_, err = metaEncode(uint64(stf[i]))
+		if err != nil {
+			return 0, nil, err
+		}
+		// encode start offset
+		_, err = metaEncode(uint64(curr))
+		if err != nil {
+			return 0, nil, err
+		}
+		// end len
+		_, err = metaEncode(uint64(len(storedFieldValues[i])))
+		if err != nil {
+			return 0, nil, err
+		}
+		// encode number of array pos
+		_, err = metaEncode(uint64(len(spf[i])))
+		if err != nil {
+			return 0, nil, err
+		}
+		// encode all array positions
+		for _, pos := range spf[i] {
+			_, err = metaEncode(pos)
+			if err != nil {
+				return 0, nil, err
+			}
+		}
+
+		data = append(data, storedFieldValues[i]...)
+		curr += len(storedFieldValues[i])
+	}
+
+	return curr, data, nil
+}
+
+func InitSegmentBase(mem []byte, memCRC uint32, chunkMode uint32,
+	fieldsMap map[string]uint16, fieldsInv []string, numDocs uint64,
+	storedIndexOffset uint64, fieldsIndexOffset uint64, docValueOffset uint64,
+	dictLocs []uint64) (*SegmentBase, error) {
+	sb := &SegmentBase{
+		mem:               mem,
+		memCRC:            memCRC,
+		chunkMode:         chunkMode,
+		fieldsMap:         fieldsMap,
+		fieldsInv:         fieldsInv,
+		numDocs:           numDocs,
+		storedIndexOffset: storedIndexOffset,
+		fieldsIndexOffset: fieldsIndexOffset,
+		docValueOffset:    docValueOffset,
+		dictLocs:          dictLocs,
+		fieldDvReaders:    make(map[uint16]*docValueReader),
+		fieldFSTs:         make(map[uint16]*vellum.FST),
+	}
+	sb.updateSize()
+
+	err := sb.loadDvReaders()
+	if err != nil {
+		return nil, err
+	}
+
+	return sb, nil
+}