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>

medcenterstart/src/components/SiteHeader.tsx

@@ -0,0 +1,67 @@
+import logo from '../assets/images/exo-logo.png'
+import { contacts, navLinks } from '../data/content'
+import { useScrolled } from '../hooks/useScrollState'
+import { cx } from '../lib/cx'
+import { ButtonLink, buttonClass, headerSize } from './Button'
+import { PhoneIcon } from './Icons'
+import { Container } from './Layout'
+
+/**
+ * Transparent over the hero; gains the blurred bar once the page scrolls.
+ *
+ * Below 980px it carries a logo and a call button and nothing else. The nav is
+ * not shown at that width and the proposal button has moved to <ThumbBar />,
+ * so there is nothing left up here to compete with the page.
+ */
+export function SiteHeader() {
+  const scrolled = useScrolled()
+
+  return (
+    <header
+      className={cx(
+        'fixed inset-x-0 top-0 z-[60] py-[14px] transition-[background-color,box-shadow,backdrop-filter] duration-250 phone:py-[9px]',
+        scrolled && 'bg-navy-deep/[0.88] shadow-[0_12px_42px_rgb(3_20_34/0.18)] backdrop-blur-[18px]',
+      )}
+    >
+      <Container className="flex items-center justify-between gap-[18px]">
+        <a className="inline-flex min-w-0 items-center" href="#top" aria-label="Экзо Групп — наверх">
+          <img
+            alt="Экзо Групп — российские технологии реабилитации"
+            className="block h-auto w-[clamp(172px,20vw,232px)] max-w-full object-contain object-left phone:w-[168px]"
+            src={logo}
+            width={900}
+            height={204}
+          />
+        </a>
+
+        <nav
+          aria-label="Основная навигация"
+          className="hidden items-center gap-[28px] text-[14px] font-[680] text-white/[0.76] lg:flex"
+        >
+          {navLinks.map((link) => (
+            <a key={link.href} href={link.href} className="transition-colors duration-200 hover:text-white">
+              {link.label}
+            </a>
+          ))}
+        </nav>
+
+        <div className="flex shrink-0 items-center gap-[10px] phone:gap-[6px]">
+          <a
+            href={contacts.phoneHref}
+            aria-label="Позвонить в Экзо Групп"
+            className={buttonClass('call', 'phone:min-h-[40px] phone:px-[13px] [&>svg]:phone:size-[18px]', headerSize)}
+          >
+            <PhoneIcon />
+            <span className="phone:hidden">Звонок</span>
+          </a>
+          {/* `max-lg:hidden`, not `hidden lg:inline-flex`: `inline-flex` from
+              the button base is emitted after `hidden` in the utility layer and
+              would win at every width. */}
+          <ButtonLink href="#proposal" className="max-lg:hidden" size={headerSize}>
+            Получить предложение
+          </ButtonLink>
+        </div>
+      </Container>
+    </header>
+  )
+}