Feat/ntfy (#57)

* implement ntfy notification

* fix notification fields order

* fix schema for ntfy

---------

Co-authored-by: yusing <yusing@6uo.me>

internal/notif/base.go

@@ -1,6 +1,7 @@
 package notif
 
 import (
+	"io"
 	"net/http"
 	"net/url"
 	"strings"
@@ -54,3 +55,15 @@ func (base *ProviderBase) GetMethod() string {
 func (base *ProviderBase) GetMIMEType() string {
 	return "application/json"
 }
+
+func (base *ProviderBase) SetHeaders(logMsg *LogMessage, headers http.Header) {
+	// no-op by default
+}
+
+func (base *ProviderBase) makeRespError(resp *http.Response) error {
+	body, err := io.ReadAll(resp.Body)
+	if err == nil {
+		return E.Errorf("%s status %d: %s", base.Name, resp.StatusCode, body)
+	}
+	return E.Errorf("%s status %d", base.Name, resp.StatusCode)
+}