upgrade: adopt V8.33.1 — final merge, our patches upstreamed natively

V8.33.0 absorbed our entire platform patch set as native features
(discovery/env_for macro override/blocks.css priority/type-mapping fix/
frontend entries/locale override) and synced trade-pro from our remote;
V8.33.1 adds HESU PIPE industrial-theme home fixes (1.3.1).

Zero patch re-application this round — all verified native. Theme
suites 35/35; full run 428 passed + same 10 known Windows env fails
(FAILED set unchanged). Live: container 8.33.1-dev.1 healthy, hesupipe
192 entries intact, trade-pro build 203 pages 0 errors.

Patch registry retired to archive — future upgrades are plain overlay.

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

app/blueprints.py

@@ -254,7 +254,9 @@ def render_blocks(blocks, site, page, entries):
         elif typ=='features':
             items=block.get('items') if isinstance(block.get('items'),list) else []
             cards=''.join(f'<article class="sf-feature"><span>{i+1:02}</span><h3>{escape(str(item.get("title","")))}</h3><p>{escape(str(item.get("text","")))}</p></article>' for i,item in enumerate(items[:12]) if isinstance(item,dict))
-            parts.append(start+f'<div class="sf-section-head"><h2>{title}</h2></div><div class="sf-features">{cards}</div>'+end)
+            visible_items=sum(1 for item in items[:12] if isinstance(item,dict))
+            feature_cols=visible_items if 1<=visible_items<=4 else 3
+            parts.append(start+f'<div class="sf-section-head"><h2>{title}</h2></div><div class="sf-features" style="--sf-feature-cols:{feature_cols}">{cards}</div>'+end)
         elif typ=='stats':
             items=block.get('items') if isinstance(block.get('items'),list) else []
             cards=''.join(f'<div><strong>{escape(str(item.get("value","")))}</strong><span>{escape(str(item.get("label","")))}</span></div>' for item in items[:12] if isinstance(item,dict))
@@ -269,7 +271,10 @@ def render_blocks(blocks, site, page, entries):
                 bound=[r for r in bound if brand_of(r)==str(page.get('title','')).casefold().strip()]
             count=max(1,min(48,int(block.get('limit') or 6)));cols=max(2,min(4,int(block.get('columns') or 3)))
             cards=''.join(f'<a class="sf-item" data-category="{escape(str((json.loads(r.get("meta_json") or "{}").get("fields") or {}).get("category", "")),quote=True)}" data-brand="{escape(str((json.loads(r.get("meta_json") or "{}").get("fields") or {}).get("brand", "")),quote=True)}" href="{safe_href(r.get("route") or "/")}"><div class="sf-item-img">'+(f'<img src="{safe_media(r.get("cover"))}" alt="{escape(r.get("title",""),quote=True)}" loading="lazy">' if safe_media(r.get('cover')) else '<div class="sf-placeholder">'+escape(r.get('title','')[:2])+'</div>')+f'</div><div class="sf-item-copy"><small>{escape(r.get("type",""))}</small><h3>{escape(r.get("title",""))}</h3><p>{escape((r.get("summary") or "")[:140])}</p><span>查看详情 →</span></div></a>' for r in bound[:count])
-            parts.append(start+f'<div class="sf-section-head"><div><span class="sf-kicker">{subtitle}</span><h2>{title}</h2></div><a href="{safe_href(resolve("href","/product/"))}">{escape(resolve("button","查看全部"))} →</a></div><div class="sf-collection" style="--sf-cols:{cols}">{cards if cards else "<p class=\"sf-muted\">当前暂无相关内容，请导入或添加数据。</p>"}</div>'+end)
+            # Homepage highlights are not catalogues: avoid injecting search/filters before featured cards.
+            # Other listing pages may opt into filters for sufficiently large result sets.
+            filterable=(page.get('route')!='/' and (page.get('type') in ('category','brand') or count>=9))
+            parts.append(start+f'<div class="sf-section-head"><div><span class="sf-kicker">{subtitle}</span><h2>{title}</h2></div><a href="{safe_href(resolve("href","/product/"))}">{escape(resolve("button","查看全部"))}</a></div><div class="sf-collection" data-sf-filterable="{str(filterable).lower()}" style="--sf-cols:{cols}">{cards if cards else "<p class=\"sf-muted\">当前暂无相关内容，请导入或添加数据。</p>"}</div>'+end)
         elif typ=='image_text':
             im=safe_media(resolve('image')); img=f'<img src="{im}" alt="{title}" loading="lazy">' if im else '<div class="sf-placeholder sf-large">✧</div>'
             side=' sf-reverse' if block.get('image_side')=='left' else ''