chore(plating): de-dash shipped code + intake-neutral customer emails

Replace em-dashes and en-dashes with hyphens across 789 shipped source
files (py/xml/js/scss) so the delivered module reads as human-written;
em-dashes had become a recognizable AI-generated tell. Internal .md dev
notes are excluded. The WO-sticker mojibake strippers keep their dash
search targets (now written — / –). No logic changes: comments
and display strings only; validated with py_compile + lxml parse.

Rewrite the 7 customer notification emails to be intake-neutral
(ship-in / drop-off / pickup) and repair-aware, and fix the Shipped
email documents line (packing slip vs bill of lading; certificate only
when issued). Subjects use a hyphen separator.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

fusion_plating/fusion_plating_certificates/migrations/19.0.10.2.0/post-migrate.py

@@ -32,7 +32,7 @@ def migrate(cr, version):
     """)
     if not cr.fetchone():
         _logger.warning(
-            'fp_default_coc_contact_rel missing — skipping CoC contact '
+            'fp_default_coc_contact_rel missing - skipping CoC contact '
             'migration (rel table not created yet).')
         return
     # Copy the single value into the M2m (skip rows already present so a