Add auto_result param to dialog items for automated validation

Each dialog test item now accepts an optional auto_result parameter
(ok/cancel/yes/no) and auto_value for text dialogs. When set, the dialog
window opens, stays visible 2 seconds, then closes automatically with the
specified result — allowing the validation suite to run without manual
interaction.

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

test/validation/items/dialogs/test.tum

@@ -2,6 +2,7 @@
     name: dialog image PASS
     condition: $(validation_dialogs)
     question: click ok if you see the image
+    auto_result: "ok"
     key: $(test)_PASS
     filename: $(test_path)$(psep)IMG_20140213_171455.jpg
 
@@ -9,6 +10,7 @@
     name: dialog image FAIL
     condition: $(validation_dialogs)
     question: click cancel
+    auto_result: "cancel"
     key: $(test)_FAIL
     filename: $(test_path)$(psep)IMG_20140213_171455.jpg
 
@@ -17,45 +19,54 @@
     condition: $(validation_dialogs)
     key: $(test)_PASS
     question: click ok
+    auto_result: "ok"
 
 - dialog_references:
     name: dialog_reference FAIL
     condition: $(validation_dialogs)
     key: $(test)_FAIL
     question: click cancel
+    auto_result: "cancel"
 
 - dialog_value:
     name: dialog_value PASS
     condition: $(validation_dialogs)
     key: $(test)_PASS
     question: enter 123 and click ok
+    auto_result: "ok"
+    auto_value: "123"
 
 - dialog_value:
     name: dialog_value empty FAIL
     condition: $(validation_dialogs)
     key: $(test)_FAIL
     question: enter nothing and click ok
+    auto_result: "ok"
 
 - dialog_value:
     name: dialog_value canceled FAIL
     condition: $(validation_dialogs)
     key: $(test)_FAIL
     question: enter nothing and click cancel
+    auto_result: "cancel"
 
 - dialog_message:
     name: dialog_message PASS
     condition: $(validation_dialogs)
     key: $(test)_PASS
     question: click ok
+    auto_result: "ok"
 
 - dialog_question:
     name: dialog_question PASS
     condition: $(validation_dialogs)
     key: $(test)_PASS
     question: click yes
+    auto_result: "yes"
 
 - dialog_question:
     name: dialog_question FAIL
     condition: $(validation_dialogs)
     key: $(test)_FAIL
     question: click no
+    auto_result: "no"

test/validation/items/plot/test.tum

@@ -71,4 +71,4 @@
     steps:
         - close:
             wait_dialog_exit: True
-            timeout: 60
+            timeout: 2