feat: make app configurable

internal/types/types.go

@@ -5,6 +5,24 @@ type LoginQuery struct {
 }
 
 type LoginRequest struct {
-	Email string `json:"email"`
+	Username string `json:"username"`
 	Password string `json:"password"`
+}
+
+type User struct {
+	Username string
+	Password string
+}
+
+type UserList struct {
+	Users []User
+}
+
+type Config struct {
+	Port int `validate:"number" mapstructure:"port"`
+	Address string `mapstructure:"address, ip4_addr"`
+	Secret string `validate:"required,len=32" mapstructure:"secret"`
+	RootURL string `validate:"required,url" mapstructure:"root-url"`
+	AppURL string `validate:"required,url" mapstructure:"app-url"`
+	Users string `validate:"required" mapstructure:"users"`
 }