Adding Manual connection point to allow undeclared fits

app/templates/admin/_augmented_part_ap_row_edit.html

@@ -2,7 +2,7 @@
 {% elif apoint.unc_thread_id %}{% set current_type = "unc_thread" %}
 {% elif apoint.clamp_connection_id %}{% set current_type = "clamp_connection" %}
 {% elif apoint.static_connection_id %}{% set current_type = "static_connection" %}
-{% else %}{% set current_type = "" %}{% endif %}
+{% else %}{% set current_type = "manual" %}{% endif %}
 {# _attachment_point_connection_select.html expects `ap` for pre-selection #}
 {% set ap = apoint %}
 {% set connection_type = current_type %}
@@ -29,6 +29,7 @@
         <option value="unc_thread" {{ "selected" if current_type == "unc_thread" }}>UNC Thread</option>
         <option value="clamp_connection" {{ "selected" if current_type == "clamp_connection" }}>Clamp Connection</option>
         <option value="static_connection" {{ "selected" if current_type == "static_connection" }}>Static Connection</option>
+        <option value="manual" {{ "selected" if current_type == "manual" }}>Manual</option>
       </select>
     </label>
     <div id="edit-ap-{{ apoint.id }}-connection-options">