Add logic to able to prefill DEFAULT_EMAIL

internal/config/config.go

@@ -42,6 +42,7 @@ type AuthConfig struct {
 	AllowedEmails   []string `yaml:"allowed_emails"`
 	AdminEmail      string   `yaml:"admin_email"`
 	CookieDomain    string   `yaml:"cookie_domain"`
+	DefaultEmail    string   `yaml:"default_email"`
 }
 
 func Load() (*Config, error) {
@@ -122,6 +123,9 @@ func Load() (*Config, error) {
 	if cookieDomain := os.Getenv("COOKIE_DOMAIN"); cookieDomain != "" {
 		config.Auth.CookieDomain = cookieDomain
 	}
+	if defaultEmail := os.Getenv("DEFAULT_EMAIL"); defaultEmail != "" {
+		config.Auth.DefaultEmail = defaultEmail
+	}
 
 	return config, nil
 }

internal/handlers/handlers.go

@@ -469,6 +469,14 @@ func (h *Handlers) GetAuthStatus(w http.ResponseWriter, r *http.Request) {
 	h.writeJSON(w, response)
 }
 
+// GetConfig returns public configuration data
+func (h *Handlers) GetConfig(w http.ResponseWriter, r *http.Request) {
+	configData := map[string]interface{}{
+		"default_email": h.config.Auth.DefaultEmail,
+	}
+	h.writeJSON(w, configData)
+}
+
 // Admin endpoints
 
 // ListUsers returns all users (admin endpoint)