fix(supabase): valid Cache-Control directive on upload; clarify functionName description

- storage upload: expand a bare numeric cache-control to `max-age=<n>` (a raw number is not a valid Cache-Control header)
- block: functionName input description now covers RPC, vector search, and Edge Function invoke

Author: waleedlatif1

apps/sim/app/api/tools/supabase/storage-upload/route.ts

@@ -175,7 +175,10 @@ export const POST = withRouteHandler(async (request: NextRequest) => {
     }
 
     if (validatedData.cacheControl) {
-      headers['cache-control'] = validatedData.cacheControl
+      const cacheControl = validatedData.cacheControl.trim()
+      headers['cache-control'] = /^\d+$/.test(cacheControl)
+        ? `max-age=${cacheControl}`
+        : cacheControl
     }
 
     if (validatedData.upsert) {

apps/sim/blocks/blocks/supabase.ts

@@ -1207,7 +1207,8 @@ Return ONLY the PostgREST filter expression - no explanations, no markdown, no e
     offset: { type: 'number', description: 'Number of rows to skip' },
     functionName: {
       type: 'string',
-      description: 'PostgreSQL function name for vector search or RPC',
+      description:
+        'Function name — PostgreSQL function for RPC or vector search, or Edge Function name to invoke',
     },
     queryEmbedding: { type: 'array', description: 'Query vector/embedding for similarity search' },
     matchThreshold: { type: 'number', description: 'Minimum similarity threshold (0-1)' },