Adjust BackButton prop handling and update cache duration

Refactored BackButton to use a default href value and handle optional href prop more robustly. Increased cache duration in VariableSearchAutocomplete to 24 hours and fixed type for cache key generation. Removed unused import in researcher.test.ts.

Took 13 minutes

Author: mikepsinn

app/dfda/components/BackButton.tsx

@@ -4,11 +4,12 @@ import { ArrowLeft } from 'lucide-react'
 import Link from 'next/link'
 
 interface BackButtonProps {
-  href: string;
+  href?: string;
   label?: string;
 }
 
-export default function BackButton({ href, label = 'Back to dFDA' }: BackButtonProps) {
+export default function BackButton({ href='/dfda', label = 'Back' }: BackButtonProps) {
+  if(!href) {href = '/dfda'}
   return (
     <Link 
       href={href}

app/dfda/components/VariableSearchAutocomplete.tsx

@@ -17,8 +17,8 @@ interface SearchCache {
   results: GlobalVariable[]
 }
 
-// Add cache duration constant (e.g., 1 hour)
-const CACHE_DURATION = 60 * 60 * 1000
+// Add cache duration constant (e.g., 24 hours)
+const CACHE_DURATION = 24 * 60 * 60 * 1000
 
 function getCachedResults(key: string): GlobalVariable[] | null {
   try {
@@ -81,7 +81,7 @@ export default function VariableSearchAutocomplete({
       try {
         // Create a cache key based on search term and params
         const cacheKey = `dfda-variable-search:${searchTerm}:${
-          JSON.stringify(Object.keys(searchParams).sort().reduce((obj, key) => {
+          JSON.stringify(Object.keys(searchParams).sort().reduce<Record<string, string>>((obj, key) => {
             obj[key] = searchParams[key]
             return obj
           }, {}))

tests/researcher.test.ts

@@ -7,7 +7,6 @@ import {
   deleteArticleByPromptedTopic,
   findOrCreateArticleByPromptedTopic, writeArticle,
 } from "@/lib/agents/researcher/researcher"
-import {findGrantsForOrganization, generateAndSaveGrantProposal, generateGrantProposal} from "@/lib/agents/grantAgent";
 import {
   generateOrganizationFromUrl,
   generateOrganizationFromUrlBySearch, getOrCreateOrganizationFromUrl