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/zap/Makefile

@@ -0,0 +1,76 @@
+# Directory containing the Makefile.
+PROJECT_ROOT = $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
+
+export GOBIN ?= $(PROJECT_ROOT)/bin
+export PATH := $(GOBIN):$(PATH)
+
+GOVULNCHECK = $(GOBIN)/govulncheck
+BENCH_FLAGS ?= -cpuprofile=cpu.pprof -memprofile=mem.pprof -benchmem
+
+# Directories containing independent Go modules.
+MODULE_DIRS = . ./exp ./benchmarks ./zapgrpc/internal/test
+
+# Directories that we want to track coverage for.
+COVER_DIRS = . ./exp
+
+.PHONY: all
+all: lint test
+
+.PHONY: lint
+lint: golangci-lint tidy-lint license-lint
+
+.PHONY: golangci-lint
+golangci-lint:
+	@$(foreach mod,$(MODULE_DIRS), \
+		(cd $(mod) && \
+		echo "[lint] golangci-lint: $(mod)" && \
+		golangci-lint run --path-prefix $(mod)) &&) true
+
+.PHONY: tidy
+tidy:
+	@$(foreach dir,$(MODULE_DIRS), \
+		(cd $(dir) && go mod tidy) &&) true
+
+.PHONY: tidy-lint
+tidy-lint:
+	@$(foreach mod,$(MODULE_DIRS), \
+		(cd $(mod) && \
+		echo "[lint] tidy: $(mod)" && \
+		go mod tidy && \
+		git diff --exit-code -- go.mod go.sum) &&) true
+
+
+.PHONY: license-lint
+license-lint:
+	./checklicense.sh
+
+$(GOVULNCHECK):
+	cd tools && go install golang.org/x/vuln/cmd/govulncheck
+
+.PHONY: test
+test:
+	@$(foreach dir,$(MODULE_DIRS),(cd $(dir) && go test -race ./...) &&) true
+
+.PHONY: cover
+cover:
+	@$(foreach dir,$(COVER_DIRS), ( \
+		cd $(dir) && \
+		go test -race -coverprofile=cover.out -coverpkg=./... ./... \
+		&& go tool cover -html=cover.out -o cover.html) &&) true
+
+.PHONY: bench
+BENCH ?= .
+bench:
+	@$(foreach dir,$(MODULE_DIRS), ( \
+		cd $(dir) && \
+		go list ./... | xargs -n1 go test -bench=$(BENCH) -run="^$$" $(BENCH_FLAGS) \
+	) &&) true
+
+.PHONY: updatereadme
+updatereadme:
+	rm -f README.md
+	cat .readme.tmpl | go run internal/readme/readme.go > README.md
+
+.PHONY: vulncheck
+vulncheck: $(GOVULNCHECK)
+	$(GOVULNCHECK) ./...