feat(web): full desktop layout instead of a stretched phone view

- focus screens: question and context on the left, answers on the right in
  one wide card; consent text and the 0–10 scale in one wide column
- today: dashboard with tasks, this week's doses and quick actions side by
  side; meds / doctor / profile in two-column grids; welcome gets «Как это
  работает» steps
- fix: 0–10 scale no longer overflows narrow containers

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

web/src/screens/EmiasSignIn.tsx

@@ -59,13 +59,20 @@ export function EmiasSignIn() {
 
   return (
     <AppShell signedIn={false} focus>
-      <div className="stack narrow">
+      <div className="focus">
         <TopBar onBack={() => navigate("/")} />
+        <div className="split">
+        <div className="split__lead">
         <header className="head">
+          <span className="tile-icon tile-icon--teal">
+            <Icon name="docPlus" size={26} />
+          </span>
           <h1 className="h1">{t.title}</h1>
           <p className="lead">{t.lead}</p>
         </header>
-
+        <Notice>{t.demoNotice}</Notice>
+        </div>
+        <div className="split__act">
         <form className="stack stack--sm" onSubmit={submit} noValidate>
           <label htmlFor="code" className="visually-hidden">
             {t.codeLabel}
@@ -93,8 +100,6 @@ export function EmiasSignIn() {
           </button>
         </form>
 
-        <Notice>{t.demoNotice}</Notice>
-
         <div className="divider" role="separator">
           <span>{t.or}</span>
         </div>
@@ -115,6 +120,8 @@ export function EmiasSignIn() {
             </button>
           ))}
         </section>
+        </div>
+        </div>
       </div>
     </AppShell>
   );