A new type would be very complex because it requires to be generic (and so it may be included in standard). But I think you are looking for a dedicated window/application (not ir.ui.view) bundled in the client (which provides all the session management and RPC tools).
This is something that were not yet experienced. Lately, I thought it may be good to allow such customization. But for now, I think you have to figure it out yourself how this can be done. For me, we should welcome patches that improve such extension.
I would suggest to make an analysis and make a detailed proposal as Feature Idea.
Just clone the repository and run npm install and grunt dev (instead of grunt).
I think it should be possible to have also something for desktop client (even if the tools available to actually write such custom view are rare).
Like for production deployment, the trytond server must serve the index.html from its [web] root like explained in the README.
URL opening is already supported as ir.action (and the URL can be constructed with Allow ModelView.button_action returns action values (#8766) · Issues · Tryton / Tryton · GitLab). And as you can define custom route in a module (see timesheet/route.py), it is possible to serve such web application.
But the problem is that it will not be linked to the sao session and you will not have access to the sao internals like RPC.
So this technique is already used for example for Chronos but it is for dedicated standalone application.
in index.html, javascript link to “dist/tryton-sao.min.js”.
In production, should i link to [src/sao.js] only or need to import all the file in [src/*]
I think you misunderstand my meaning, I mean create a Generic view like the “Dashboard Module”.
But the “This View” allow to receive html as template and reading the value from the “Model”.