This commit enables server-side rendering (SSR) in Vite when prerendering is turned off. It also imports `@angular/compiler` in the SSR middleware to resolve the following issue:
```
[vite] Internal server error: The injectable 'PlatformNavigation' needs to be compiled using the JIT compiler, but '@angular/compiler' is not available.
The injectable is part of a library that has been partially compiled. However, the Angular Linker has not processed the library to utilize JIT compilation as a fallback.
Ideally, the library should be processed with the Angular Linker for complete AOT compilation.
```
Closes#28523
The `ssr.entry` (server.ts file) is now utilized during prerendering, allowing access to locally defined API routes for improved data fetching and rendering.
Introduced the `createRequestHandler` and `createNodeRequestHandler` utilities to expose middleware functions from the `server.ts` entry point for use with Vite.
This provides flexibility in integrating different server frameworks, including Express, Hono, and Fastify, with Angular SSR.
Examples:
**Express**
```ts
export default createNodeRequestHandler(app);
```
**Nest.js**
```ts
const app = await NestFactory.create(AppModule);
export default createNodeRequestHandler(app);
```
**Hono**
```ts
const app = new Hono();
export default createRequestHandler(app.fetch);
```
**Fastify**
```ts
export default createNodeRequestHandler(async (req, res) => {
await app.ready();
app.server.emit('request', req, res);
});
```
When `ssr.entry` (server.ts) is defined, Vite will now use it in the dev-server. This allows API and routes defined in `server.ts` to be accessible during development. This feature requires the new `@angular/ssr` APIs, which are currently in developer preview.
Replaced multiple `appendServerConfiguredHeaders` calls with a single custom middleware to append headers to all responses, simplifying the code and ensuring consistency.
This commit introduces several key updates:
- Updates Vite middleware to utilize the new SSR API.
- Refactors prerendering, app-shell, and route extraction to align with the new rendering API.
- Generates manifest files required by the new SSR API.
**Note:** This is primarily a refactor; new features and improvements will be implemented in future updates.
