fix: hide 'Neue Suche' entries from need selector chips

Only named needs (company name != 'Neue Suche') appear in the chip strip.
Default active need is also the first named need, not the most-recently-created
test search.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/pages/demand/Results.tsx

@@ -58,11 +58,13 @@ export default function Results() {
   })
 
   const allNeeds = needResp?.data ?? []
+  // Only show named needs in the selector — skip auto-generated "Neue Suche" entries
+  const namedNeeds = allNeeds.filter(n => n.companyName !== 'Neue Suche')
 
-  // Priority: explicit user selection → nav (just came from NeedBuilder) → first need in list
-  const effectiveNeedId = selectedNeedId ?? activeNeedIdFromNav ?? allNeeds[0]?.id
+  // Priority: explicit user selection → nav (just came from NeedBuilder) → first named need
+  const effectiveNeedId = selectedNeedId ?? activeNeedIdFromNav ?? namedNeeds[0]?.id
 
-  const activeNeed = allNeeds.find(n => n.id === effectiveNeedId) ?? allNeeds[0]
+  const activeNeed = allNeeds.find(n => n.id === effectiveNeedId) ?? namedNeeds[0]
 
   // Ensure query cache is invalidated when a new need was just created
   if (activeNeedIdFromNav) {
@@ -127,10 +129,10 @@ export default function Results() {
       <Box sx={{ flex: 1, overflowY: 'auto', px: 3, py: 3 }}>
         {activeNeed && (
           <Card sx={{ bgcolor: '#eff6ff', p: 2, mb: 2, border: '1px solid #bfdbfe' }}>
-            {/* Need selector — all saved searches as chips */}
-            {allNeeds.length > 1 && (
+            {/* Need selector — named searches only */}
+            {namedNeeds.length > 1 && (
               <Box sx={{ display: 'flex', flexWrap: 'wrap', gap: 0.75, mb: 1.5 }}>
-                {allNeeds.map(n => (
+                {namedNeeds.map(n => (
                   <Chip
                     key={n.id}
                     label={`${n.companyName} · ${n.assetType}`}