feat: deploy to Hostinger VPS, switch to global_healthx Ozonetel account

- Add helix.svg and PNG favicon (generated via nano-banana)
- Update page title to "Helix Engage" with proper meta tags
- Make seed scripts configurable via SEED_GQL/SEED_ORIGIN env vars
- Support remote workspace member IDs in seed-data.ts
- Dynamic doctor-to-clinic linking in seed-new-entities.ts (fetch IDs from platform)
- Remove deprecated branchClinic field from seed data
- Fix TypeScript errors: callNotes null vs undefined, Lead type casting

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

public/helix.svg

@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32">
+  <rect width="32" height="32" rx="8" fill="#2563eb"/>
+  <text x="16" y="22" font-family="Inter, system-ui, sans-serif" font-size="20" font-weight="700" fill="white" text-anchor="middle">H</text>
+</svg>