chore(release): prepare 0.8.6

Bumps all 47 packages, the root manifest and the VS Code extension to 0.8.6,
and rebuilds the editor compiler, language server and extension bundles that
embed the version.

The release carries the output delivery fix: camelCase outputs now reach
parent bindings, and 18 components emit through output.* instead of
hand-built CustomEvents. See the 0.8.6 migration entry for what changes for
consumers.

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

.publish/ui/components/badge.wrn

@@ -35,15 +35,13 @@ component Badge {
   state visible: boolean = true
 
   functions {
-    client function dismissBadge(sourceEvent, root, customEvent) {
+    // output.dismiss reaches a parent @dismiss binding; a raw dispatchEvent on
+    // the root does not. The runtime registers parent handlers in a registry
+    // that only the output proxy consults, so the CustomEvent this used to
+    // build bubbled past every binding and was never seen by anyone.
+    client function dismissBadge() {
       visible = false
-      root = sourceEvent.currentTarget.closest("[data-wrn-badge]")
-      customEvent = document.createEvent("CustomEvent")
-      customEvent.initCustomEvent("dismiss", true, false, {
-        component: "Badge",
-        label: label
-      })
-      root.dispatchEvent(customEvent)
+      output.dismiss({ component: "Badge", label: label })
     }
   }