fix(nav,ci): scope click-to-nav to outer 15% L/R + re-enable cr.yml

- `play.vue`: clicking the letterbox / pillarbox bars (or the middle of
  the slide) used to nudge the deck back/forward. Restrict the
  click-to-nav hot zones to the outer 15% on each side so off-slide
  clicks defocus without paging.
- `cr.yml`: pkg-pr-new GitHub App is now installed on the
  `Open-Athena` org — re-enable per-push + per-PR auto-triggers so each
  commit publishes SHA-pinned preview packages users can install
  directly (see followup commit updating README + Install slide).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: ryan-williams

.github/workflows/cr.yml

@@ -1,14 +1,15 @@
 # Continuous Releases provided by https://pkg.pr.new
 #
-# Disabled for the Open-Athena fork: pkg-pr-new requires the `pkg-pr-new`
-# GitHub App to be installed on the org, which it isn't here. Every push was
-# failing with `Check failed (404): The app https://github.com/apps/pkg-pr-new
-# is not installed on Open-Athena/slidev`. We don't publish per-PR previews of
-# the slidev packages from this fork, so disable auto-triggers. Manual runs
-# stay available via `workflow_dispatch` if anyone wants to re-enable per-push
-# behaviour after installing the app.
+# Every push to main publishes preview packages keyed by commit SHA. Users
+# install with e.g.
+#   npm i 'https://pkg.pr.new/Open-Athena/slidev/@slidev/cli@<sha>'
+# (any package manager). See README for the install pattern.
 name: CR (Continuous Releases)
-on: workflow_dispatch
+on:
+  push:
+    branches: [main]
+  pull_request:
+  workflow_dispatch:
 
 jobs:
   cr:

packages/client/pages/play.vue

@@ -27,11 +27,15 @@ function onClick(e: MouseEvent) {
     return
 
   if (e.button === 0 && (e.target as HTMLElement)?.id === 'slide-container') {
-    // click right to next, left to previous
-    if ((e.pageX / window.innerWidth) > 0.5)
-      next()
-    else
+    // Only the outer 15% on each side advances/rewinds slides. The middle 70%
+    // (and the letterbox/pillarbox bars near vertical center) is a no-op, so
+    // clicking off-element to defocus doesn't accidentally page the deck.
+    const x = e.pageX / window.innerWidth
+    const HOT = 0.15
+    if (x < HOT)
       prev()
+    else if (x > 1 - HOT)
+      next()
   }
 }