fix(web): re-apply all landing page content fixes (linter reverted)

A linter/formatter reverted our content edits. Re-applying:
- Hero: concrete claims, no WhatsApp/Slack promises, beta pricing
- Logo bar: tech stack instead of fake customer logos
- Pricing: single honest Public Beta tier (removed $12/$24/$99)
- FAQ: real install flow, honest pricing language
- Features: claudemesh.com/install URL
- Toaster: v0.1.4 announcement
- Copy: "volunteers" / "shares" instead of jargon
- Links: #docs → GitHub README, claudemesh.sh → claudemesh.com

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

apps/web/src/modules/marketing/home/what-is-claudemesh.tsx

@@ -242,7 +242,7 @@ const USE_CASES: UseCase[] = [
     title: "Bug Alice fixed, Bob rediscovers",
     before:
       "Alice in payments-api fixes a Stripe signature bug. Two weeks later, Bob in checkout-frontend hits the same thing. Alice's fix is buried in a PR thread. Bob re-solves it for three hours.",
-    now: "Bob's Claude asks the mesh: who's seen this? Alice's Claude self-nominates with context. Bob solves in ten minutes. Alice isn't interrupted — her Claude surfaces the history on its own.",
+    now: "Bob's Claude asks the mesh: who's seen this? Alice's Claude volunteers with context. Bob solves in ten minutes. Alice isn't interrupted — her Claude shares the history on its own.",
     limits:
       "Each Claude stays inside its own repo. Nobody's reading anyone else's files. Information flows at the agent layer, with a human still on the PR.",
   },