Update billing calculator rates to match PR #17 (#18)

Author: kylemclaren

src/components/react/BillingCalculator.tsx

@@ -45,7 +45,7 @@ const PAYG = {
 
 // Usage pricing (same for overage and PAYG)
 const RATES = {
-  cpuHour: 0.0275,
+  cpuHour: 0.07,
   ramGBHour: 0.04375,
   storageGB: 0.5,
 };

src/content/docs/reference/billing.mdx

@@ -120,10 +120,10 @@ Use the calculator above to model your own usage. Here are some common patterns:
 
 | Scenario | Active Time | CPU Hours/mo | PAYG Cost | Level 10 Plan |
 |----------|-------------|--------------|-----------|---------------|
-| **Weekend hacker** | 4 hrs/wk | ~69 hrs | ~$15 | $20 (within plan) |
-| **Light CI** | 20 builds × 10 min | ~108 hrs | ~$24 | $20 (within plan) |
-| **Part-time dev** | 2 hrs/day, 5 days/wk | ~346 hrs | ~$76 | $20 (within plan) |
-| **Full-time dev** | 4 hrs/day, 5 days/wk | ~693 hrs | ~$152 | ~$87 (+overage) |
+| **Weekend hacker** | 4 hrs/wk | ~139 hrs | ~$15 | $20 (within plan) |
+| **Light CI** | 20 builds × 10 min | ~115 hrs | ~$13 | $20 (within plan) |
+| **Part-time dev** | 2 hrs/day, 5 days/wk | ~346 hrs | ~$34 | $20 (within plan) |
+| **Full-time dev** | 4 hrs/day, 5 days/wk | ~693 hrs | ~$66 | ~$37 (+overage) |
 
 ## Monitoring Usage