feat(sticker): add Internal Job Sticker variant on fp.job Print menu

Mirror of the SO Internal variant for fp.job. Same body fields,
same per-box loop; Notes column reads x_fc_internal_description
from the first linked SO line (job.sale_order_line_ids[:1]).
Operator on the shop floor sees ops-internal notes without those
ever appearing on the customer-facing External sticker.

Verified on fp.job 2635 with seeded internal_description: Notes
column reads "INTERNAL JOB: handle with care, no rework on this
batch" — confirms the Job Internal variant's override path mirrors
the SO Internal variant's.

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

fusion_plating/fusion_plating_jobs/__manifest__.py

@@ -3,7 +3,7 @@
 # License OPL-1 (Odoo Proprietary License v1.0)
 {
     'name': 'Fusion Plating — Native Jobs',
-    'version': '19.0.8.24.0',
+    'version': '19.0.8.25.0',
     'category': 'Manufacturing/Plating',
     'summary': 'Native plating job model — replaces mrp.production / mrp.workorder bridge.',
     'author': 'Nexa Systems Inc.',