feat: publish standalone worker

Separate worker packaging and service lifecycle from the control plane.

Makefile

@@ -0,0 +1,43 @@
+BINARY := bin/rsmon-worker
+VERSION ?= dev
+COMMIT ?= $(shell git rev-parse --short=12 HEAD 2>/dev/null || printf unknown)
+BUILD_DATE ?= $(shell date -u +%Y-%m-%dT%H:%M:%SZ)
+LDFLAGS := -s -w -X main.version=$(VERSION) -X main.commit=$(COMMIT) -X main.buildDate=$(BUILD_DATE)
+
+.PHONY: build test check image clean
+
+build:
+	mkdir -p bin
+	CGO_ENABLED=0 go build -trimpath -ldflags="$(LDFLAGS)" -o $(BINARY) ./cmd/rsmon-worker
+
+test:
+	RSMON_ENV=test CWD=$(CURDIR) go test \
+		./internal/distworker \
+		./internal/webapp \
+		./internal/workercluster \
+		./internal/wire \
+		./internal/checkexec \
+		./checks/calls \
+		./checks/cbssl \
+		./checks/cdns \
+		./checks/cftp \
+		./checks/chttp \
+		./checks/cping \
+		./checks/cssh \
+		./checks/cssl \
+		./checks/ctcp \
+		./checks/cudp \
+		./checks/cwhois \
+		./checks/llmhttp
+
+check:
+	go mod tidy
+	git diff --exit-code -- go.mod go.sum
+	$(MAKE) test
+	$(MAKE) build
+
+image:
+	docker build --build-arg VERSION=$(VERSION) --build-arg COMMIT=$(COMMIT) --build-arg BUILD_DATE=$(BUILD_DATE) -t rsmon-worker:local .
+
+clean:
+	rm -rf bin dist