Games serves the shared page shell's web app manifest and touch icon (/steam, /updates and world pages logged a manifest 404) (#143)

ddiff --git a/apps/server/src/net/sharedAssets.test.ts b/apps/server/src/net/sharedAssets.test.ts
iindex 3945fb2..c765083 100644
---- a/apps/server/src/net/sharedAssets.test.ts
++++ b/apps/server/src/net/sharedAssets.test.ts
@@@ -40,6 +40,24 @@ describe('/shared (D42)', () => {
      expect(r.status).toBe(304)
    })
  
++  it('serves the web app manifest and touch icon the shared page shell links (/steam, /updates, world pages)', async () => {
++    const shell = req('openvibe-shared/serve') as { manifestUrl(s: string): string | null }
++    const url = shell.manifestUrl('games')
++    expect(url).toMatch(/^\/shared\/manifest\/games\.webmanifest\?v=/)
++    const r = await fetch(base + url)
++    expect(r.status).toBe(200)
++    expect(r.headers.get('content-type')).toMatch(/manifest\+json/)
++    expect(r.headers.get('cache-control')).toMatch(/immutable/)
++    const m = (await r.json()) as { name?: string; icons?: { src: string }[] }
++    expect(m.name).toBeTruthy()
++    const icon = m.icons?.[0]?.src ?? ''
++    expect(icon).toMatch(/^\/shared\/icons\//)
++    const ir = await fetch(base + icon)
++    expect(ir.status).toBe(200)
++    expect(ir.headers.get('content-type')).toMatch(/image\/png/)
++    expect((await fetch(`${base}/shared/manifest/no-such-site.webmanifest`)).status).toBe(404)
++  })
++
    it('serves only the browser files openvibe-shared lists', async () => {
      for (const p of [
        '/shared/serve.js',
ddiff --git a/apps/server/src/net/sharedAssets.ts b/apps/server/src/net/sharedAssets.ts
iindex 7f0ff50..d032cda 100644
---- a/apps/server/src/net/sharedAssets.ts
++++ b/apps/server/src/net/sharedAssets.ts
@@@ -16,17 +16,28 @@ interface SharedFiles {
  }
  interface SharedServe {
    hashOf(name: string): string
++  handler(): (req: IncomingMessage & { path: string }, res: ServerResponse, next: (err?: unknown) => void) => void
  }
  
  export function sharedAssetsHandler(req: NodeRequire = createRequire(import.meta.url)) {
    const files = req('openvibe-shared/files') as SharedFiles
    const serve = req('openvibe-shared/serve') as SharedServe
++  const shared = serve.handler()
    return (rq: IncomingMessage, res: ServerResponse): boolean => {
      if (rq.method !== 'GET' && rq.method !== 'HEAD') return false
      const url = new URL(rq.url ?? '/', 'http://games.local')
      if (!url.pathname.startsWith('/shared/')) return false
      const name = url.pathname.slice('/shared/'.length)
--    if (!files.isBrowserFile(name)) return false
++    // The rest openvibe-shared serves goes to its own handler: the web app manifest and touch icon its page shell links
++    // on /steam, /updates and world pages (manifest/games.webmanifest, icons/games-192.png), and the social cards.
++    if (!files.isBrowserFile(name)) {
++      let handled = true
++      shared(Object.assign(rq, { path: `/${name}` }), res, (err) => {
++        if (err) res.destroy()
++        else handled = false
++      })
++      return handled
++    }
      const hash = serve.hashOf(name)
      const headers = {
        'content-type': 'application/javascript; charset=utf-8',