feat: add agent-notify server command

Co-authored-by: Cursor <cursoragent@cursor.com>

cmd/agent-notify/server.go

@@ -0,0 +1,36 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"net/http"
+	"os"
+
+	"github.com/longbin/agent-notify/internal/server"
+)
+
+func cmdServer(args []string) error {
+	fs := flag.NewFlagSet("server", flag.ExitOnError)
+	listen := fs.String("listen", ":8080", "listen address")
+	db := fs.String("db", "./agent-notify.db", "SQLite database path")
+	token := fs.String("token", "", "API bearer token")
+	_ = fs.Parse(args)
+
+	tok := *token
+	if tok == "" {
+		tok = os.Getenv("AGENT_NOTIFY_TOKEN")
+	}
+	if tok == "" {
+		return fmt.Errorf("--token or AGENT_NOTIFY_TOKEN is required")
+	}
+
+	store, err := server.Open(*db)
+	if err != nil {
+		return err
+	}
+	defer store.Close()
+
+	handler := server.NewHandler(store, tok)
+	fmt.Fprintf(os.Stderr, "agent-notify server listening on %s\n", *listen)
+	return http.ListenAndServe(*listen, handler)
+}