refactor: architecture compliance pass — DS tokens, hook boundary, god component split, AI hardening

- DS token migration: Anfragen.tsx + child components (AnfragenInquiryItem, AnfragenMessageBubble)
  fully migrated; DS_TEXT.brandDark added; scoreTheme.ts moved to src/lib/ with re-export proxy
- Hook boundary: Results.tsx no longer calls needService directly — routes through useNeeds()
  with optional refetchOnMount/gcTime overrides
- NewListing.tsx (440L) split into useNewListingForm hook + 8 section components under
  src/components/new-listing/; page shell reduced to 121 lines
- AI hardening: Zod .strict() on all schemas, AIProvenance extended with schemaVersion/
  fallbackReason/traceId/latencyMs, AITraceStore stats with p50/p90/p99 + failure breakdowns,
  MockAIService buildFollowUpQuestions with priority ordering + area-ambiguity detection,
  prompt templates updated (LIGHT_INDUSTRIAL, budget unit, ambiguity detection, decimal precision)
- Tests: all 154 passing; fixed test regression caused by OfferEmailResponseSchema body min(50)

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

src/components/new-listing/SoftFactorsSection.tsx

@@ -0,0 +1,37 @@
+import { Box, Card, MenuItem, TextField, Typography } from '@mui/material'
+import { SOFT_FACTORS, LEVEL_OPTIONS } from '../../pages/supply/newListingConstants'
+
+interface Props {
+  softLevels: Record<string, string>
+  onChange: (key: string, value: string) => void
+}
+
+export function SoftFactorsSection({ softLevels, onChange }: Props) {
+  return (
+    <Card sx={{ p: 3, mb: 3 }}>
+      <Box sx={{ mb: 2 }}>
+        <Typography variant="subtitle2" sx={{ fontWeight: 700 }}>Lage & Ausstrahlung</Typography>
+        <Typography variant="caption" color="text.secondary">
+          Diese Angaben verbessern die Match-Qualität erheblich.
+        </Typography>
+      </Box>
+      <Box sx={{ display: 'grid', gridTemplateColumns: '1fr 1fr 1fr', gap: 2 }}>
+        {SOFT_FACTORS.map(({ key, label }) => (
+          <TextField
+            key={key}
+            select
+            label={label}
+            value={softLevels[key] ?? ''}
+            onChange={e => onChange(key, e.target.value)}
+            size="small"
+            fullWidth
+          >
+            {LEVEL_OPTIONS.map(o => (
+              <MenuItem key={o.value} value={o.value}>{o.label}</MenuItem>
+            ))}
+          </TextField>
+        ))}
+      </Box>
+    </Card>
+  )
+}