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/bleve/v2/analysis/token/stop/stop.go

@@ -0,0 +1,73 @@
+//  Copyright (c) 2014 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 stop implements a TokenFilter removing tokens found in
+// a TokenMap.
+//
+// It constructor takes the following arguments:
+//
+// "stop_token_map" (string): the name of the token map identifying tokens to
+// remove.
+package stop
+
+import (
+	"fmt"
+
+	"github.com/blevesearch/bleve/v2/analysis"
+	"github.com/blevesearch/bleve/v2/registry"
+)
+
+const Name = "stop_tokens"
+
+type StopTokensFilter struct {
+	stopTokens analysis.TokenMap
+}
+
+func NewStopTokensFilter(stopTokens analysis.TokenMap) *StopTokensFilter {
+	return &StopTokensFilter{
+		stopTokens: stopTokens,
+	}
+}
+
+func (f *StopTokensFilter) Filter(input analysis.TokenStream) analysis.TokenStream {
+	j := 0
+	for _, token := range input {
+		_, isStopToken := f.stopTokens[string(token.Term)]
+		if !isStopToken {
+			input[j] = token
+			j++
+		}
+	}
+
+	return input[:j]
+}
+
+func StopTokensFilterConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.TokenFilter, error) {
+	stopTokenMapName, ok := config["stop_token_map"].(string)
+	if !ok {
+		return nil, fmt.Errorf("must specify stop_token_map")
+	}
+	stopTokenMap, err := cache.TokenMapNamed(stopTokenMapName)
+	if err != nil {
+		return nil, fmt.Errorf("error building stop words filter: %v", err)
+	}
+	return NewStopTokensFilter(stopTokenMap), nil
+}
+
+func init() {
+	err := registry.RegisterTokenFilter(Name, StopTokensFilterConstructor)
+	if err != nil {
+		panic(err)
+	}
+}