fix: beauty frontend server-side filtering and bulk actions

- add keyword and tld params to get_enriched() in db.py (LIKE on domain + page_title)
- forward keyword/tld through /api/enriched in beauty_main.py
- rewrite beauty/index.html loadDomains() to pass all filters server-side via URLSearchParams
- track domainsTotal from API response for correct pagination display
- add Pre-screen Selected and B2B Assess Selected bulk action buttons
- add per-row Screen and Assess buttons
- goSearch() resets to page 1 before fetching

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

app/beauty_main.py

@@ -153,12 +153,15 @@ async def enriched(
     prescreen_status: str = Query(None),
     niche: str = Query(None),
     site_type: str = Query(None),
+    keyword: str = Query(None),
+    tld: str = Query(None),
     page: int = Query(1, ge=1),
     limit: int = Query(100, ge=1, le=1000),
 ):
     total, rows = await get_enriched(
         min_score=min_score, country=country,
         prescreen_status=prescreen_status, niche=niche, site_type=site_type,
+        keyword=keyword, tld=tld,
         page=page, limit=limit,
     )
     return {"page": page, "limit": limit, "total": total, "results": rows}