feat(web): screens from docs/mock — focus flow, today, meds, doctor, profile

- /flow renders the dialog engine's current step as a mock screen (consent,
  age, onboarding and scales with progress, mood 0–10, free text, dose
  reminder, crisis with hotlines and breathing, safety plan), so every
  engine scenario gets the design without duplicating its logic
- today / meds / doctor / profile / messages tabs; navy sidebar and
  emergency rail on desktop, emergency block and tab bar on phones
- API: GET /me/{token}/today (today's doses, week marks, next visit, demo
  clock time); demo ЕМИАС sign-in seeds the persona's synthetic profile and
  prescription from the dashboard fixtures

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

web/src/api/client.ts

@@ -1,4 +1,4 @@
-import type { AuthResult, CrisisResource, DemoPersona, DialogEvent, Reply } from "./types";
+import type { AuthResult, CrisisResource, DemoPersona, DialogEvent, Reply, TodayPlan } from "./types";
 
 // Web: same-origin /api/v1 (Vite proxy in dev). Mobile shell: set VITE_API_BASE to the absolute API URL at build.
 const BASE: string = import.meta.env.VITE_API_BASE ?? "/api/v1";
@@ -35,6 +35,7 @@ export const api = {
   signInAnonymous: () => post<AuthResult>("/auth/anonymous"),
   demoPersonas: () => request<DemoPersona[]>("/demo/personas"),
   crisisResources: () => request<CrisisResource[]>("/crisis/resources"),
+  today: (token: string) => request<TodayPlan>(`/me/${encodeURIComponent(token)}/today`),
   sendEvent: async (token: string, event: DialogEvent) =>
     (await post<{ replies: Reply[] }>(`/dialog/${encodeURIComponent(token)}/events`, event)).replies,
   outbox: async (token: string) =>