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/static/editor.js

@@ -284,7 +284,7 @@ const Studio={
   },
   filterPalette(value){paletteSearch=String(value||'').slice(0,70);Studio.renderPalette()},
   clearPaletteSearch(){paletteSearch='';const inp=$('#paletteSearch');if(inp){inp.value='';inp.focus()}Studio.renderPalette()},
-  showThemePreview(){const dialog=$('#themePreviewModal');if(!dialog)return;const current=['automotive','industrial','corporate','minimal'].includes(site?.theme)?site.theme:'corporate';$('#themePreviewTheme').value=current;if(!dialog.open)dialog.showModal();Studio.themeDevice('desktop');Studio.updateThemePreview()},
+  showThemePreview(){const dialog=$('#themePreviewModal');if(!dialog)return;const current=['automotive','industrial','corporate','minimal','trade-pro'].includes(site?.theme)?site.theme:'corporate';$('#themePreviewTheme').value=current;if(!dialog.open)dialog.showModal();Studio.themeDevice('desktop');Studio.updateThemePreview()},
   closeThemePreview(){themePreviewSeq++;themePreviewAbort?.abort();const dialog=$('#themePreviewModal');if(dialog?.open)dialog.close();const frame=$('#themePreviewFrame');if(frame){frame.removeAttribute('src');frame.removeAttribute('srcdoc')}},
   themeDevice(device){
     const width={desktop:'100%',tablet:'780px',phone:'390px'}[device];if(!width)return;