feat(reports): MO-bound WO sticker + polished professional layout

User reported two issues with the sticker:

1. "Print → WO Box Sticker" didn't appear on the MO form
   (WH/MO/00067). The operator workflow lives on the MO form, not
   the WO — binding only to mrp.workorder meant they couldn't see
   the option. Now bound to BOTH:
     * mrp.workorder (per-WO sticker)
     * mrp.production (per-MO sticker — prints the MO friendly
       name after "WO #" so it reads naturally in shop-floor
       vocabulary)
   Internal refactor: factored the layout into a shared inner
   template report_fp_wo_sticker_inner; the two outer templates
   normalise their input to the same _order_id / _scan_id / _mo
   variables and t-call the inner.

2. Design polish. The previous layout was a plain label/value
   table that looked rough. Redesigned with:
     * Proper sticker chrome: 0.5mm black border, 1.5mm rounded
       corners, edge padding.
     * Header row with bottom border rule separating logo+WO-# on
       the left from QR+caption on the right.
     * Grid rows now alternate white / #f4f5f7 zebra-striping with
       a right-aligned vertical rule between label and value.
     * ALL-CAPS, letter-spaced, gray-333 labels at 7.5pt; values
       at 8.5pt with strong (9.5pt, 700) emphasis on the key data
       (PO, Part Number, Qty) so it reads at a glance from across
       the warehouse.
     * Helvetica Neue font stack.
     * "SCAN TO OPEN" caption under the QR.

Scan endpoint updated: /fp/wo/<id> now tries mrp.production first
(operator home form) then falls back to mrp.workorder. Numeric
collisions between the two id spaces are possible; MO wins because
the MO view carries the full context.

fusion_plating_reports → 19.0.7.1.0

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': '19.0.7.0.0',
+    'version': '19.0.7.1.0',
     'category': 'Manufacturing/Plating',
     'summary': 'PDF reports for Fusion Plating: quote, SO, WO, packing, BoL, CoC, invoice, receipt, quality + compliance.',
     'depends': [