build: move some packages to be built by Rslib

[fi3ework]

Summary

Adding an empty virtual module in packages/core/src/node/runtimeModule/routeData.ts as a placeholder. The reason is:

The output of Rslib be like:

var __webpack_modules__ = {
    "virtual-routes": function(module) {
        module.exports = require("virtual-routes");
    },
    "virtual-routes-ssr": function(module) {
        module.exports = require("virtual-routes-ssr");
    }
};

// ...

const { routes } = process.env.__SSR__ ? __webpack_require__("virtual-routes-ssr") : __webpack_require__("virtual-routes");

Which can not be static determined by Rspack when bundling even process.env.__SSR__ is statically replaced to a boolean value. So Rspack will try to resolve both virtual-routes and virtual-routes-ssr for SSR and non-SSR. Adding an empty virtual module here as a placeholder.

Related Issue

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

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