fix: allow view supplements to add extra links for profile employee tab

tailbone/templates/people/view_profile.mako

@@ -1274,8 +1274,7 @@
 
         </div>
 
-        <div>
-          <div class="buttons">
+        <div style="display: flex; gap: 0.75rem;">
 
           % if request.has_perm('people_profile.toggle_employee'):
 
@@ -1410,6 +1409,17 @@
               </${b}-modal>
           % endif
 
+          <div style="display: flex; flex-direction: column; align-items: right; gap: 0.75rem;">
+
+            <b-button v-for="link in employee.external_links"
+                      :key="link.url"
+                      type="is-primary"
+                      tag="a" :href="link.url" target="_blank"
+                      icon-pack="fas"
+                      icon-left="external-link-alt">
+              {{ link.label }}
+            </b-button>
+
             % if request.has_perm('employees.view'):
                 <b-button v-if="employee.view_url"
                           tag="a" :href="employee.view_url">

tailbone/views/people.py

@@ -803,6 +803,12 @@ class PersonView(MasterView):
         app = self.get_rattail_app()
         handler = app.get_employment_handler()
         context = handler.get_context_employee(employee)
+        context.setdefault('external_links', [])
+
+        for supp in self.iter_view_supplements():
+            if hasattr(supp, 'get_context_for_employee'):
+                context = supp.get_context_for_employee(employee, context)
+
         context['view_url'] = self.request.route_url('employees.view', uuid=employee.uuid)
         return context