Add site contacts/FAQ and accept AWG 2.0 / naive pastes in Add config.

ImportSubscription no longer requires only http(s): paste awg://, AWG .conf/JSON, or naive links; subscription parser also reads hosted AWG and Clash wireguard/naive. Site lists support emails and FAQ; Store listing texts/tools updated.

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

internal/apphost/app.go

@@ -476,8 +476,14 @@ var allowedLinkHosts = map[string]bool{
 	"t.me":        true,
 }
 
+// allowedMailto are support addresses the UI may open via mailto:.
+var allowedMailto = map[string]bool{
+	"animegold3@gmail.com": true,
+	"admin@evilfox.win":    true,
+}
+
 // LinkAllowed validates that raw is an http(s) URL pointing at one of the
-// allowed hosts; returns the normalized URL.
+// allowed hosts, or a mailto: address from the allowlist; returns the normalized URL.
 func LinkAllowed(raw string) (string, error) {
 	raw = strings.TrimSpace(raw)
 	if raw == "" {
@@ -487,8 +493,23 @@ func LinkAllowed(raw string) (string, error) {
 	if err != nil {
 		return "", fmt.Errorf("некорректная ссылка")
 	}
+	if strings.EqualFold(u.Scheme, "mailto") {
+		addr := strings.TrimSpace(u.Opaque)
+		if addr == "" {
+			addr = strings.TrimSpace(u.Path)
+		}
+		addr = strings.TrimPrefix(addr, "//")
+		if i := strings.IndexAny(addr, "?#"); i >= 0 {
+			addr = addr[:i]
+		}
+		addr = strings.ToLower(addr)
+		if !allowedMailto[addr] {
+			return "", fmt.Errorf("почта %s не разрешена", addr)
+		}
+		return "mailto:" + addr, nil
+	}
 	if u.Scheme != "https" && u.Scheme != "http" {
-		return "", fmt.Errorf("разрешены только http(s) ссылки")
+		return "", fmt.Errorf("разрешены только http(s) и mailto ссылки")
 	}
 	if !allowedLinkHosts[strings.ToLower(u.Hostname())] {
 		return "", fmt.Errorf("ссылка на %s не разрешена", u.Hostname())