more grainular pph math

src/lib/mastodon.ts

@@ -216,6 +216,6 @@ export async function getPostsData(
     `pph: ${postsPerHour.toFixed(2)} (${method})`,
   )
 
-  return { postsPerHour, relatedTags, displayTag, hasAnyPosts: true }
+  return { postsPerHour: Math.round(postsPerHour * 10) / 10, relatedTags, displayTag, hasAnyPosts: true }
 }
 

src/lib/pricing.ts

@@ -12,10 +12,10 @@
  *   3 600 (viral) → $250.00  (design target)
  *   Asymptote    → ~$346
  *
- * Floor: $0.25 (matches zero-PPH floor price).
+ * Floor: $0.25 for ≤ 1 PPH.
  */
 export function calcPrice(postsPerHour: number): number {
-  if (postsPerHour <= 0) return 0.25
+  if (postsPerHour <= 1) return 0.25
   const base   = 0.25   // The base price at low volumes (1 PPH)
   const anchor = 3600   // PPH at which we want the target price (1 PPS)
   const target = 250    // price at the anchor PPH