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_receiving/models/sale_order.py

@@ -42,7 +42,7 @@ class SaleOrder(models.Model):
         """Override to auto-create receiving record on SO confirmation.
 
         Per-line metadata (part catalog, part number) is sourced from
-        ``sale.order.line.x_fc_part_catalog_id`` — NOT from the SO header.
+        ``sale.order.line.x_fc_part_catalog_id`` - NOT from the SO header.
         The header field exists too but is rarely populated; the line
         carries the authoritative part link in the configurator flow.
 
@@ -76,7 +76,7 @@ class SaleOrder(models.Model):
             })
         # Seamless flow: after a single interactive confirm, jump straight
         # to the Receive Parts screen so the dock counts parts in right away
-        # (idiot-proof — no hunting for the smart button). Guarded to a
+        # (idiot-proof - no hunting for the smart button). Guarded to a
         # single order + an opt-out context flag so batch / programmatic
         # confirms (and tests) keep the native return value.
         if (len(self) == 1