fix(reports): sticker PDF KeyError: 'quote' on fusion_pdf_preview path

The QR <img> src used `% quote(_scan_url)` to URL-encode the value,
but `quote` isn't always in the QWeb render context — particularly
on the fusion_pdf_preview / account render chains. Result:
KeyError: 'quote' when printing from the browser.

_scan_url is always base_url + '/fp/wo/<int>' — no characters that
need encoding. Replaced the % + quote() formatting with simple
string concatenation, dropping the quote dependency entirely.

Smoke verified on entech: MO + WO stickers render cleanly at 27KB
each (with QR image included).

fusion_plating_reports → 19.0.7.2.0

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

fusion_plating/fusion_plating_reports/__manifest__.py

@@ -3,7 +3,7 @@
 # License OPL-1 (Odoo Proprietary License v1.0)
 {
     'name': 'Fusion Plating — Reports',
-    'version': '19.0.7.1.0',
+    'version': '19.0.7.2.0',
     'category': 'Manufacturing/Plating',
     'summary': 'PDF reports for Fusion Plating: quote, SO, WO, packing, BoL, CoC, invoice, receipt, quality + compliance.',
     'depends': [