Rename medcenter landings and add the revenue calculator

Rename the two medcenter landings to their audience names:
medcenter -> medcenterphysio, medcenterpersonal -> medcenterstart.

Alongside the rename:
- add a RevenueCalculator section to both landings;
- rework the copy and figures in src/data/content.ts;
- simplify the lead form: drop the "cabinet_state" and "profile"
  selects (along with SelectField and the matching fields in
  shared/lead.ts, lead-mapper.ts and amo-check.ts) and make
  company and email optional;
- add the legacy/new static prototypes for both landings;
- add pnpm-lock.yaml to medcenterstart (package-lock.json is still
  there too).

deploy/apps.conf and deploy/README.md still refer to the old
directory names and need a follow-up.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

medcenterphysio/src/lib/lead.ts

@@ -0,0 +1,80 @@
+import { utmKeys, type LeadFormId, type LeadInput, type LeadResponse } from '../../shared/lead'
+
+const ENDPOINT = '/api/leads/medical-centers-existing-physio'
+const DRAFT_KEY = 'exo_medcenter_lead_draft'
+
+const FALLBACK_ERROR =
+  'Не удалось отправить форму автоматически. Данные сохранены в браузере — свяжитесь с нами по +7 939 717-80-80.'
+
+/** Query-string UTM tags, forwarded to amoCRM with the lead. */
+function collectUtm(): Record<string, string> {
+  const params = new URLSearchParams(window.location.search)
+  const utm: Record<string, string> = {}
+  for (const key of utmKeys) {
+    const value = params.get(key)
+    if (value) utm[key] = value
+  }
+  return utm
+}
+
+export interface SubmitResult {
+  ok: boolean
+  error?: string
+  fields?: Record<string, string>
+}
+
+export async function submitLead(
+  form: LeadFormId,
+  values: Omit<LeadInput, 'form' | 'utm' | 'page' | 'referrer'>,
+): Promise<SubmitResult> {
+  const payload: LeadInput = {
+    ...values,
+    form,
+    page: window.location.pathname,
+    referrer: document.referrer || undefined,
+    utm: collectUtm(),
+  }
+
+  try {
+    const response = await fetch(ENDPOINT, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify(payload),
+    })
+
+    const body = (await response.json().catch(() => null)) as LeadResponse | null
+
+    if (!response.ok || !body?.ok) {
+      // The page must never lose a lead just because the CRM is down.
+      saveDraft(payload)
+      return {
+        ok: false,
+        error: body && !body.ok ? body.error : FALLBACK_ERROR,
+        fields: body && !body.ok ? body.fields : undefined,
+      }
+    }
+
+    window.dataLayer = window.dataLayer ?? []
+    window.dataLayer.push({ event: 'medcenter_lead_sent', form })
+    localStorage.removeItem(DRAFT_KEY)
+    return { ok: true }
+  } catch (error) {
+    saveDraft(payload)
+    console.warn('Lead endpoint error', error, payload)
+    return { ok: false, error: FALLBACK_ERROR }
+  }
+}
+
+function saveDraft(payload: LeadInput) {
+  try {
+    localStorage.setItem(DRAFT_KEY, JSON.stringify(payload))
+  } catch {
+    // Private-mode browsers throw on write; the visible error message is enough.
+  }
+}
+
+declare global {
+  interface Window {
+    dataLayer?: Record<string, unknown>[]
+  }
+}