refactor: consolidate doctype-tests — bug scripts to bug-tests, workflow scripts merged

Bug/regression scripts moved to mdl-examples/bug-tests/ (already the
established home for issue-reproducing scripts):
  - keyword-as-identifier.mdl  (PR #186/#174 regression)
  - enum_split_statement.mdl   (CE0079 empty-branch fix)
  - empty_java_action_argument.mdl  (CE1613 empty-argument fix)

Three unnumbered workflow fragments merged into 24-workflow-examples.mdl:
  - alter-workflow.mdl             → Part A (ALTER WORKFLOW full coverage)
  - workflow-user-targeting.mdl    → Part B (all targeting variants)
  - workflow-microflow-actions.mdl → Part C (all 11 workflow action types)

complete-task-action.mdl (21 lines) absorbed into 03-page-examples.mdl
under a new "Workflow task completion buttons" section.

call_web_service.mdl renamed to 06b-soap-examples.mdl to match the
numbered naming convention and distinguish SOAP from REST (06).

All 33 doctype scripts pass mxcli check.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: ako

…ype-tests/empty_java_action_argument.mdl …bug-tests/empty_java_action_argument.mdlmdl-examples/doctype-tests/empty_java_action_argument.mdl renamed to mdl-examples/bug-tests/empty_java_action_argument.mdl mdl-examples/doctype-tests/empty_java_action_argument.mdl renamed to mdl-examples/bug-tests/empty_java_action_argument.mdl

@@ -2464,3 +2464,25 @@ move snippet PgTest.CustomerSidebar to folder 'Shared' in PgTest2;
 --
 -- ============================================================================
 
+-- MARK: Workflow task completion buttons
+
+-- ACTIONBUTTON with action: complete_task 'OutcomeName' submits a workflow
+-- user task outcome directly from the page. Used on pages bound to
+-- System.WorkflowUserTask.
+
+create page PgTest.UserTaskPage (
+  title: 'User Task Page',
+  layout: Atlas_Core.Atlas_Default,
+  params: { $WorkflowUserTask: System.WorkflowUserTask }
+) {
+  actionbutton btnApprove (
+    caption: 'Approve',
+    action: complete_task 'Approve',
+    buttonstyle: success
+  )
+  actionbutton btnReject (
+    caption: 'Reject',
+    action: complete_task 'Reject',
+    buttonstyle: danger
+  )
+}