Add controller for roleSchemas (unfinished)

+ Refine error messages for role schemas
+ Add role schema routes
+ Add RESULT_SCHEMA DataType
+ Add SchemaError.isSchemaError() type guard

src/app.ts

@@ -7,6 +7,7 @@ import adminRouter from "./Routes/admin.routes";
 import organisationRouter from "./Routes/organisation.routes";
 import groupRouter from "./Routes/group.routes";
 import disciplineRouter from "./Routes/discipline.routes";
+import roleSchemaRouter from "./Routes/role_schema.routes";
 import defaultErrorHandler from "./Middleware/error/handler";
 import logger from "./Middleware/error/logger";
 import debugLogger from "./Middleware/debug/logger";
@@ -56,6 +57,8 @@ async function main() {
 
   app.use("/api/disciplines", disciplineRouter);
 
+  app.use("/api/role-schemas", roleSchemaRouter);
+
   // Error handling
   app.use(defaultErrorHandler); // Not working