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/models/res_config_settings.py

@@ -15,7 +15,7 @@ class ResConfigSettings(models.TransientModel):
     x_fc_owner_user_id = fields.Many2one(
         related='company_id.x_fc_owner_user_id', readonly=False,
     )
-    # x_fc_coc_signature_override was retired 2026-05-17 — cert
+    # x_fc_coc_signature_override was retired 2026-05-17 - cert
     # signatures now come from the certifier user's Plating Signature
     # only. Field stays on res.company (no migration) but is no longer
     # exposed in settings.