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/scripts/fp_backfill.py

@@ -72,7 +72,7 @@ for wo in all_wos:
 print(f'5. plating WOs thickness/dwell backfilled: {n_th}')
 
 # 6. Clean up OLD inspection WOs that have bath/tank wrongly set
-# (legacy bug — earlier simulator pinned bath to "Post-plate Inspection"
+# (legacy bug - earlier simulator pinned bath to "Post-plate Inspection"
 # because the old classifier matched 'plat' keyword. Fixed now.)
 n_cl = 0
 for wo in all_wos:
@@ -82,7 +82,7 @@ for wo in all_wos:
         n_cl += 1
 print(f'6. legacy bath/tank cleared from inspection WOs: {n_cl}')
 
-# Verify classifier fix — re-classify all WOs and report
+# Verify classifier fix - re-classify all WOs and report
 kinds = Counter()
 mis_pi = []
 for wo in all_wos: