feat: auto-detect zap payments, show zapper profiles, fix algorithm

- ZapModal now polls LNURL verify URL for automatic payment detection
  instead of requiring manual "Done" click
- Added lightning bolt celebration animation on zap success with
  random fun quotes
- Show "Zapped by" section on film detail modal with profile pics,
  amounts, and avatar pills (like Primal/Yakihonne)
- useNostr now subscribes to kind 9735 zap receipts per content,
  parses sender pubkey from embedded zap request, and fetches profiles
- Fixed most-zapped algorithm to also parse the description tag in
  zap receipts for content matching (NIP-57 embedded zap requests)

Co-authored-by: Cursor <cursoragent@cursor.com>

src/composables/useContentDiscovery.ts

@@ -129,13 +129,29 @@ function rebuildStats() {
   }
 
   // Process zap receipts (kind 9735) from the EventStore.
-  // Zap receipts reference content via the 'i' tag (external identifiers)
-  // or via embedded zap request description.
+  // Zap receipts reference content via:
+  //  1. Direct 'i' tag on the receipt itself
+  //  2. 'i' tag embedded in the zap request JSON (description tag)
   const zapReceipts = eventStore.getByFilters([{ kinds: [9735] }])
   if (zapReceipts) {
     for (const event of zapReceipts) {
-      // Try to find the external content ID from the zap receipt tags
-      const externalId = getTagValue(event, 'i')
+      // Try direct 'i' tag first
+      let externalId = getTagValue(event, 'i')
+
+      // Fallback: parse the embedded zap request from the description tag
+      if (!externalId) {
+        const descTag = event.tags.find((t) => t[0] === 'description')?.[1]
+        if (descTag) {
+          try {
+            const zapRequest = JSON.parse(descTag)
+            if (zapRequest.tags) {
+              const iTag = zapRequest.tags.find((t: string[]) => t[0] === 'i')
+              if (iTag) externalId = iTag[1]
+            }
+          } catch { /* not valid JSON */ }
+        }
+      }
+
       if (!externalId) continue
 
       const stats = getOrCreate(externalId)