fix(web): replace 9 placeholder # links + 2 jargon phrases

Surgical fixes on shipped marketing sections. All changes are link
targets (9) or two-word replacements (2) — no structural edits.

Links:
- "Read the docs" / "documentation" (hero, cta, features) → point
  to the public CLI repo README (canonical docs until /docs exists)
- "Pair your machines" (laptop-to-laptop) → /auth/register
- "Open the dashboard" (surfaces, meets-you) → /dashboard
- "Install" (meets-you) → CLI repo README install section
- "VS Code" / "JetBrains" (meets-you) → CLI repo README (MCP setup)

Copy:
- "self-nominates" → "volunteers"
- "surfaces the history" → "shares the history"

Additive polish per the v0.1.0 web prototyping rule.

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.",
   },