Fixing errors and danger zone

app/services/danger_zone.py

@@ -16,12 +16,9 @@ from app.models.fit import Fit, FitNote
 from app.models.imported_part import ImportedPart
 from app.models.iso_thread import IsoThread
 from app.models.manufacturer import Manufacturer
-from app.models.part_colour import PartColour
-from app.models.part_type import PartType
 from app.models.scope_info import ScopeInfo
 from app.models.scope_model import ScopeModel
 from app.models.static_connection import StaticConnection
-from app.models.sub_part_type import SubPartType
 from app.models.unc_thread import UncThread
 
 # Children before the RESTRICT-protected reference tables they point to.

app/templates/admin/danger_zone.html

@@ -8,15 +8,15 @@
   <div class="card" style="border: 1px solid var(--color-danger, #c00)">
     <h2>Purge database</h2>
     <p>
-      Permanently deletes every part, taxonomy entry, attachment point, fit,
-      and imported part in the database — manufacturers, part colours, part
-      types, sub part types, scope models, ISO/UNC threads, clamp/static
-      connections, attachment point names, augmented parts, scope info,
-      attachment points, fits, fit notes, and imported parts.
+      Permanently deletes every part, attachment point, fit, and imported
+      part in the database — manufacturers, scope models, ISO/UNC threads,
+      clamp/static connections, attachment point names, augmented parts,
+      scope info, attachment points, fits, fit notes, and imported parts.
     </p>
     <p>
       <strong>Not</strong> deleted: users, roles &amp; permissions, refresh
-      tokens, the audit log, and the OData connection configuration.
+      tokens, the audit log, the OData connection configuration, and part
+      taxonomy (part colours, part types, sub part types).
     </p>
     <p class="muted">This cannot be undone. Take a database backup first if you might need this data again.</p>
     <button class="btn btn-danger"