feat(core): first attempt to init script standard (#8224)

- lazy load
- rate limit per path
- init .debug.json support
- docs
- maintainer
- radar

lib/core_router.js

@@ -0,0 +1,17 @@
+const Router = require('@koa/router');
+const config = require('@/config').value;
+const router = new Router();
+
+// Load Core Route
+router.get('/', require('./routes/index'));
+
+router.get('/robots.txt', (ctx) => {
+    if (config.disallowRobot) {
+        ctx.set('Content-Type', 'text/plain');
+        ctx.body = 'User-agent: *\nDisallow: /';
+    } else {
+        ctx.throw(404, 'Not Found');
+    }
+});
+
+module.exports = router;