fix: vendor DB lookup after regex/AI extraction v2.2.20

extract_vendor_suggestion now matches found CVR/domain/name against
vendors table for ALL code paths (not just fast path):
- CVR match → score 100
- Domain match → score 80
- Email-domain match → score 75
- Name substring → score 60

Frontend auto-links when match_score >= 80 (was only pdf_extraction source).
Shows score reason: CVR-match/domæne-match/navne-match in success toast.

Also: saves newly found CVR to extracted_vendor_cvr so fast path
works on subsequent calls for old emails too.

VERSION

@@ -1 +1 @@
-2.2.19
+2.2.20

app/emails/backend/router.py

@@ -652,6 +652,7 @@ async def extract_vendor_suggestion(email_id: int):
                 "domain":     None,
                 "source":     "pdf_extraction",
                 "vendor_id":  vendor_row.get('id') if vendor_row else None,
+                "match_score": 100 if vendor_row else 0,
                 "confidence": 0.95,
             }
             logger.info(
@@ -890,6 +891,65 @@ JSON:"""
             if em_domain in PLATFORM_DOMAINS:
                 suggestion['email'] = None
 
+        # ── Vendor DB-opslag (gælder alle stier undtagen fast path ovenfor) ───
+        # Prøv at matche det udtrukkede CVR/navn/domæne mod vendors-tabellen.
+        vendor_id   = None
+        match_score = 0
+
+        all_vendors = execute_query(
+            "SELECT id, name, cvr_number, email, domain FROM vendors WHERE is_active = true",
+            None
+        ) or []
+
+        cvr_found = suggestion.get('cvr_number')
+        name_found = (suggestion.get('name') or '').lower().strip()
+        domain_found = (suggestion.get('domain') or '').lower().strip()
+
+        for v in all_vendors:
+            score = 0
+            # CVR-match er stærkest (100 point)
+            if cvr_found and v.get('cvr_number') and str(cvr_found).strip() == str(v['cvr_number']).strip():
+                score = 100
+            # Domæne-match (80 point)
+            elif domain_found and v.get('domain') and domain_found == v['domain'].lower().strip():
+                score = 80
+            # Email-domæne-match (75 point)
+            elif domain_found and v.get('email') and '@' in (v['email'] or ''):
+                vdom = v['email'].split('@')[1].lower()
+                if domain_found == vdom:
+                    score = 75
+            # Navne-match: vendor-navn er substring af fundne navn eller omvendt (60 point)
+            elif name_found and v.get('name'):
+                vname = v['name'].lower().strip()
+                if vname and (vname in name_found or name_found in vname):
+                    score = 60
+
+            if score > match_score:
+                match_score = score
+                vendor_id = v['id']
+                suggestion['name'] = suggestion.get('name') or v['name']
+                if not cvr_found and v.get('cvr_number'):
+                    suggestion['cvr_number'] = v['cvr_number']
+
+        if vendor_id:
+            suggestion['vendor_id']    = vendor_id
+            suggestion['match_score']  = match_score
+            logger.info(f"✅ Vendor match for email {email_id}: vendor_id={vendor_id}, score={match_score}")
+
+            # Gem CVR på emailen så fast path virker næste gang
+            if cvr_found and not email.get('extracted_vendor_cvr'):
+                try:
+                    execute_update(
+                        "UPDATE email_messages SET extracted_vendor_cvr = %s, extracted_vendor_name = %s WHERE id = %s",
+                        (cvr_found, suggestion.get('name'), email_id)
+                    )
+                except Exception:
+                    pass
+        else:
+            suggestion['vendor_id']   = None
+            suggestion['match_score'] = 0
+            logger.info(f"⚠️ Ingen vendor match for email {email_id}: CVR={cvr_found}, navn={name_found}")
+
         return suggestion
 
     except HTTPException:

app/emails/frontend/emails.html

@@ -2349,7 +2349,7 @@ async function quickCreateVendor(emailId, senderName, senderEmail) {
             const s = await resp.json();
 
             // ── Hurtig genvej: leverandøren kendes allerede (vendor_id fra PDF) ──
-            if (s.vendor_id && s.source === 'pdf_extraction') {
+            if (s.vendor_id && (s.source === 'pdf_extraction' || s.match_score >= 80)) {
                 bootstrap.Modal.getInstance(document.getElementById('quickCreateVendorModal')).hide();
                 // Auto-link direkte
                 const linkResp = await fetch(`/api/v1/emails/${emailId}/link`, {
@@ -2358,7 +2358,8 @@ async function quickCreateVendor(emailId, senderName, senderEmail) {
                     body: JSON.stringify({ supplier_id: s.vendor_id })
                 });
                 if (linkResp.ok) {
-                    showSuccess(`Leverandør "${s.name || s.cvr_number}" auto-linket fra faktura-PDF`);
+                    const scoreLabel = s.match_score >= 100 ? 'CVR-match' : s.match_score >= 80 ? 'domæne-match' : 'navne-match';
+                    showSuccess(`Leverandør "${s.name || s.cvr_number}" auto-linket (${scoreLabel})`);
                     loadEmailDetail(parseInt(emailId));
                 } else {
                     showError('Auto-link fejlede — åbner formularen');