docs(qa): remove 4 high-risk unsupported marketing/security promises

Per docs/qa/audit-2026-06-26/FINAL-REPORT.md. Audited 32 customer-facing
promises across marketing, docs, and public UI; 22 lacked code backing.
This commit removes the four highest-risk items:

- Fabricated landing stats (500+ farms, 98% on-time, 50K+ orders, 2M+ lbs)
  and 4.9/12 JSON-LD rating on src/app/page.tsx + HeroSection.tsx.
- Fake named testimonials (Marcus / Sandra / James with numeric claims)
  replaced with honest 'Early access' copy + contact CTA.
- Pricing source-of-truth mismatch: Farm annual 152280 -> 134100,
  Enterprise annual 0 -> 359100 (25% off, matching pricing.ts).
- Security claims (SOC 2 Type II, 99.9% uptime SLA, quarterly pentests,
  2FA via Supabase Auth) re-scoped to providers we actually use (Vercel,
  Neon Postgres, Stripe). Provider cards updated.
- Plus LOW-risk cleanups: OG image refs (-> .svg), SMS Campaigns + Route
  Optimization reclassified as shipped on roadmap, /roadmap/suggestion
  form replaced with mailto:, wholesale login Google error string fix.

Note: src/app/wholesale/login/page.tsx and src/app/pricing/PricingClientPage.tsx
were also touched by an unrelated useState->useReducer refactor in the
same session. Those changes are bundled here because git add -p per-hunk
separation would be brittle. Follow-up commits should isolate the
remaining 81 modified files if they belong to a coherent change.

Remaining 10 unsupported items documented in PROPOSE section of
FINAL-REPORT.md need separate decisions (see that file).

src/lib/stripe-billing.ts

@@ -58,7 +58,7 @@ const PLANS = {
     name: "Farm",
     description: "For growing farms with more needs",
     monthlyPrice: 14900, // $149.00
-    annualPrice: 152280, // $1,522.80 (10% discount)
+    annualPrice: 134100, // $1,341.00 (25% discount; matches marketing pricing.ts)
     features: [
       "Unlimited products",
       "Unlimited stops",
@@ -78,7 +78,7 @@ const PLANS = {
     name: "Enterprise",
     description: "Custom solution for larger operations",
     monthlyPrice: 39900, // $399.00
-    annualPrice: 0, // Custom pricing
+    annualPrice: 359100, // $3,591.00 (25% discount; matches marketing pricing.ts)
     features: [
       "Everything in Farm",
       "AI Intelligence Pack",