Fix Devii open-trigger race and close two flaky e2e waits

DeviiTerminal bound [data-devii-open] click listeners only after the
async /devii/session fetch resolved, silently dropping early clicks.
Switch to a single delegated document listener bound in the
constructor, matching the ModalManager/dp-lightbox pattern.

The steal-confirm and comment-vote e2e tests asserted DOM state right
after a click with no wait for the triggering POST to land, racing the
server under CI load. Wrap those clicks in page.expect_response.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

devplacepy/static/js/DeviiTerminal.js

@@ -10,6 +10,7 @@ export class DeviiTerminal {
         this.avatar = null;
         this.bindEscapeTrigger();
         this.bindDoubleClickTrigger();
+        this.bindOpenTrigger();
         this.ready = this.init();
     }
 
@@ -29,16 +30,19 @@ export class DeviiTerminal {
         this.element.setAttribute("avatar", "devii");
         document.body.appendChild(this.element);
 
-        this.bindTriggers();
+        this.maybeAutoOpen();
     }
 
-    bindTriggers() {
-        document.querySelectorAll("[data-devii-open]").forEach((trigger) => {
-            trigger.addEventListener("click", (event) => {
-                event.preventDefault();
-                this.open(trigger.dataset.deviiPrompt || "");
-            });
+    bindOpenTrigger() {
+        document.addEventListener("click", (event) => {
+            const trigger = event.target.closest("[data-devii-open]");
+            if (!trigger) return;
+            event.preventDefault();
+            this.open(trigger.dataset.deviiPrompt || "");
         });
+    }
+
+    maybeAutoOpen() {
         const stored = this.element && this.element.hasStoredState && this.element.hasStoredState();
         if (document.querySelector("[data-devii-autoopen]") && !stored) {
             this.open();