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>

scripts/verify_release.py

@@ -6,7 +6,7 @@ import sys
 ROOT=Path(__file__).resolve().parent.parent
 sys.path.insert(0,str(ROOT))
 from app.version import VERSION
-assert VERSION=='8.32.0-dev.1'
+assert VERSION=='8.33.1-dev.1'
 api=(ROOT/'app'/'main.py').read_text(encoding='utf-8')
 assert 'return builder.build(' not in api, 'A synchronous request-thread build has reappeared'
 assert "@app.post('/api/sites/{site_id}/builds', status_code=202)" in api
@@ -22,4 +22,4 @@ for file in (ROOT/'requirements.lock',ROOT/'requirements-dev.lock'):
 assert (ROOT/'.github/workflows/ci.yml').is_file()
 for file in (ROOT/'app/static').glob('*.js'):
     subprocess.run(['node','--check',str(file)],check=True)
-print('PASS: version, 4× themes, worker route, pinned dependencies, CI workflow, JS syntax')
+print('PASS: version, 5× themes, worker route, pinned dependencies, CI workflow, JS syntax')