chore: emulator sip_gateway, Makefile targets, full README documentation

- Emulator: add sip_gateway field to all scenarios (auto-trunk creation)
- Makefile: build-agent, build-siptest, emulate-*, siptest-* targets
- README: full documentation with agent section, production deployment
- Project structure update with all components

Makefile

@@ -8,7 +8,8 @@ DATA_DIR := data
 
 .PHONY: all build build-go build-web clean run test install \
         emulate emulate-normal emulate-overload emulate-cpu-low emulate-fail-high \
-        emulate-node-down emulate-stale emulate-chaos build-emulator
+        emulate-node-down emulate-stale emulate-chaos build-emulator \
+        build-siptest siptest-uas siptest-uac siptest-full
 
 all: build
 
@@ -100,6 +101,40 @@ emulate-stale: nats build-emulator
 emulate-chaos: nats build-emulator
 	./$(BINDIR)/emulator --scenario chaos
 
+# ============================================================
+# Агент сбора метрик (pulse-lets-go-agent)
+# ============================================================
+
+build-agent:
+	@mkdir -p $(BINDIR)
+	go build -o $(BINDIR)/pulse-lets-go-agent ./cmd/pulse-lets-go-agent
+
+# ============================================================
+# SIP-тестер (e2e проверка с FreeSWITCH)
+# ============================================================
+
+build-siptest:
+	@mkdir -p $(BINDIR)
+	go build -o $(BINDIR)/siptest ./cmd/siptest
+
+# Запуск UAS (PBX-нода, отвечает 200 OK на INVITE)
+siptest-uas: build-siptest
+	./$(BINDIR)/siptest -mode uas
+
+# Отправка тестового звонка (10 CPS, 100 вызовов)
+siptest-uac: build-siptest
+	./$(BINDIR)/siptest -mode uac -r 10 -l 100 -m 100
+
+# Полный e2e тест: UAS + UAC
+siptest-full: build-siptest
+	@echo "→ Запуск UAS (PBX-нода) на порту 5090..."
+	./$(BINDIR)/siptest -mode uas &
+	@sleep 1
+	@echo "→ Запуск UAC (оператор)..."
+	./$(BINDIR)/siptest -mode uac -r 10 -l 100 -m 200
+	@echo "→ Остановка UAS..."
+	pkill siptest 2>/dev/null || true
+
 # ============================================================
 # NATS и запуск
 # ============================================================