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_jobs/scripts/seed_demo_data.py

@@ -60,7 +60,7 @@ def _build_combos(env):
 
 def _create_so(env, partner, part, coating, qty, deadline_offset_days):
     """Create + confirm a SO with one plating line. Returns (so, job)."""
-    # fp.part.catalog has no product_id field — use a generic product
+    # fp.part.catalog has no product_id field - use a generic product
     # for the SO line. Plating-specific fields (x_fc_part_catalog_id,
     # x_fc_coating_config_id) carry the real linkage.
     fallback_product = env['product.product'].search(
@@ -106,7 +106,7 @@ def _create_job_direct(env, partner, part, recipe, qty, deadline_offset_days):
     }
     if part:
         vals['part_catalog_id'] = part.id
-    # fp.part.catalog has no product_id field — leave fp.job.product_id
+    # fp.part.catalog has no product_id field - leave fp.job.product_id
     # null. It's an optional field used as a "Reference Product".
     return Job.create(vals)