fix(e2e): update remaining tests using exact-match toggle-btn selector

analysis.feature and full-ui-path.feature used [data-e2e=toggle-btn]
(exact match) which no longer works since toggle buttons now have
compound selectors (e.g. "toggle-btn configure-btn"). Switch to
word-match [data-e2e~=configure-btn].

e2e/ui/src/test/resources/analyses/analysis.feature

@@ -18,7 +18,7 @@ Feature: UI — Launch an analysis and verify results
     * waitFor('[data-e2e=doc-item].selected')
 
     # Verify we are in Configure mode (first toggle button is active)
-    * waitFor('[data-e2e=toggle-btn].active')
+    * waitFor('[data-e2e~=configure-btn].active')
 
     # Click Run / Exécuter
     * waitFor('[data-e2e=run-btn]')

e2e/ui/src/test/resources/workflows/full-ui-path.feature

@@ -22,7 +22,7 @@ Feature: UI — Full happy path via browser
     * waitFor('[data-e2e=doc-item].selected')
 
     # Step 5: Verify Configure mode is active
-    * waitFor('[data-e2e=toggle-btn].active')
+    * waitFor('[data-e2e~=configure-btn].active')
 
     # Step 6: Run the analysis
     * click('[data-e2e=run-btn]')