fix(plating): compact CoC first column + 3-line part data

- Column titles now render inline "English / French" on one line (was
  stacked), cutting header height. First column drops "Line Item": it is
  now Part Number / No. de pièce, Description / Description, Serial Number /
  Numéro de série with a tight line-height.
- First-column DATA shows three lines — part number, part name, serial
  number — via new fp.certificate._fp_resolve_part_identity() (part name
  from the job's part catalog, serials from the matching SO line; blanks
  fall back to "-"). Bump certificates 19.0.9.2.0, reports 19.0.11.31.0.

Deployed + verified on entech (CoC-30059: ('9876699373',
'VALVE BODY - COMPLETE - ASSY', ''), 243KB render).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

fusion_plating/fusion_plating_certificates/__manifest__.py

@@ -5,7 +5,7 @@
 
 {
     'name': 'Fusion Plating — Certificates',
-    'version': '19.0.9.1.0',
+    'version': '19.0.9.2.0',
     'category': 'Manufacturing/Plating',
     'summary': 'Certificate registry for CoC, thickness reports, and quality documents.',
     'description': """