feat: Add server management and database migrations

- Add start/stop/restart/status commands to Makefile
- Add health endpoint with uptime tracking
- Add CLI module (esp32-web command)
- Add initial database migration
- Listen on all interfaces (0.0.0.0:5500)

Bump version to 0.1.1

Makefile

@@ -1,13 +1,56 @@
-.PHONY: build run dev stop logs test migrate clean install
+.PHONY: build run dev stop logs test migrate clean install start restart status
 
 APP_NAME := esp32-web
 PORT := 5500
+HOST := 0.0.0.0
+PIDFILE := /tmp/esp32-web.pid
+LOGFILE := /tmp/esp32-web.log
 
 install:
 	pip install -e ".[dev]"
 
+# Server management
+start:
+	@if [ -f $(PIDFILE) ] && kill -0 $$(cat $(PIDFILE)) 2>/dev/null; then \
+		echo "Server already running (PID $$(cat $(PIDFILE)))"; \
+	else \
+		echo "Starting server on $(HOST):$(PORT)..."; \
+		nohup flask --app src/esp32_web run --host $(HOST) --port $(PORT) > $(LOGFILE) 2>&1 & \
+		echo $$! > $(PIDFILE); \
+		sleep 1; \
+		echo "Server started (PID $$(cat $(PIDFILE)))"; \
+	fi
+
+stop:
+	@if [ -f $(PIDFILE) ]; then \
+		echo "Stopping server (PID $$(cat $(PIDFILE)))..."; \
+		kill $$(cat $(PIDFILE)) 2>/dev/null || true; \
+		rm -f $(PIDFILE); \
+		echo "Server stopped"; \
+	else \
+		echo "Server not running"; \
+	fi
+
+restart: stop
+	@sleep 1
+	@$(MAKE) start
+
+status:
+	@if [ -f $(PIDFILE) ] && kill -0 $$(cat $(PIDFILE)) 2>/dev/null; then \
+		echo "Server running (PID $$(cat $(PIDFILE)))"; \
+		curl -s http://localhost:$(PORT)/health 2>/dev/null | \
+			python3 -c "import sys,json; d=json.load(sys.stdin); print(f\"Status: {d['status']}\nUptime: {d['uptime']}\")" 2>/dev/null \
+			|| echo "Health: unreachable"; \
+	else \
+		echo "Server not running"; \
+		rm -f $(PIDFILE) 2>/dev/null; \
+	fi
+
+logs:
+	@tail -f $(LOGFILE)
+
 dev:
-	flask --app src/esp32_web run --port $(PORT) --debug
+	flask --app src/esp32_web run --host $(HOST) --port $(PORT) --debug
 
 test:
 	pytest -v
@@ -21,20 +64,21 @@ migrate-init:
 migrate-create:
 	flask --app src/esp32_web db migrate -m "$(msg)"
 
+# Container targets
 build:
 	podman build -t $(APP_NAME) .
 
-run:
+container-run:
 	podman run -d --name $(APP_NAME) \
 		-p $(PORT):$(PORT) \
 		-p $(PORT):$(PORT)/udp \
 		-v ./instance:/app/instance:Z \
 		$(APP_NAME)
 
-stop:
+container-stop:
 	podman stop $(APP_NAME) && podman rm $(APP_NAME)
 
-logs:
+container-logs:
 	podman logs -f $(APP_NAME)
 
 clean: