feat(Modal/Slideover): add leave and enter events

.sync/log/006324aeb91ae4054c314c9cb4a9d552fe04e44e.md

@@ -0,0 +1,27 @@
+# Port: feat(Modal/Slideover): add `leave` and `enter` events (#6596)
+
+**Upstream:** `006324aeb91ae4054c314c9cb4a9d552fe04e44e` (nuxt/ui)
+**Decision:** port
+
+## Upstream change
+`Modal.vue` and `Slideover.vue` gain `enter` and `leave` emits (alongside the
+existing `after:enter` / `after:leave`), wired to the reka-ui dialog content's
+`@enter` / `@leave` transition hooks.
+
+## b24ui adaptation
+Direct 1:1 — both b24ui components matched the upstream pre-change exactly
+(same `*Emits extends DialogRootEmits` interface, same `@after-enter` /
+`@after-leave` handlers on the content). No `ui → b24ui` / icon / color
+rewrites needed for these lines.
+- `src/runtime/components/Modal.vue`: add `'leave': []` and `'enter': []` to
+  `ModalEmits`; add `@enter="emits('enter')"` and `@leave="emits('leave')"` on
+  the content element.
+- `src/runtime/components/Slideover.vue`: same for `SlideoverEmits` and the
+  content element.
+
+Docs untouched (upstream didn't touch docs; b24ui Modal/Slideover emit tables
+are generated from component-meta).
+
+## Verification (pnpm 11.6.0, gate ON)
+dev:prepare · lint · typecheck · test · module build — green. Emit additions
+don't change rendered markup → no snapshot churn.

.sync/nuxt-ui.json

@@ -2,7 +2,7 @@
   "upstream": "nuxt/ui",
   "branch": "v4",
   "sync_enabled": false,
-  "cursor": "f99778e3e7639c11f6b46a4e4c57fbc66077195a",
+  "cursor": "006324aeb91ae4054c314c9cb4a9d552fe04e44e",
   "_cursor_note": "cursor = last upstream commit ported into b24ui (oldest-first, manual cadence). sync_enabled stays false until Phase 2 (porter workflow #67 + CLAUDE_CODE_OAUTH_TOKEN) is wired and trusted. `processed` is maintained per port from now on (backfilled #68-#72 on 2026-06-09).",
   "stats": {
     "queue_depth": 0,
@@ -611,10 +611,16 @@
       "summary": "chore(deps): update tiptap to ^3.26.1 (#6593) — all @tiptap/* b24ui pins ^3.26.0->^3.26.1 (root 17 pkgs + extension-emoji/extension-text-align in docs/playgrounds nuxt+demo+vue; nuxt<->demo parity kept). b24ui pins the same tiptap set as upstream, no missing pkgs, peer ranges untouched. Combined into the deps-batch PR with 39090327+7e359508"
     },
     "f99778e3e7639c11f6b46a4e4c57fbc66077195a": {
+      "pr": 202,
+      "b24ui_sha": "f0e21619",
+      "decision": "port",
+      "summary": "feat(ChatMessages): expose registerMessageRef (#6275) — ChatMessages.vue: defineExpose({ registerMessageRef }) + pass it to the default slot (<slot :register-message-ref>), and type the default slot prop (registerMessageRef: (id, element: ComponentPublicInstance|null)=>void). Direct 1:1 (ui->b24ui already applied; registerMessageRef fn + imports already present). +docs Expose section. No snapshot churn (binding/expose don't change markup)"
+    },
+    "006324aeb91ae4054c314c9cb4a9d552fe04e44e": {
       "pr": null,
       "b24ui_sha": "pending-merge",
       "decision": "port",
-      "summary": "feat(ChatMessages): expose registerMessageRef (#6275) — ChatMessages.vue: defineExpose({ registerMessageRef }) + pass it to the default slot (<slot :register-message-ref>), and type the default slot prop (registerMessageRef: (id, element: ComponentPublicInstance|null)=>void). Direct 1:1 (ui->b24ui already applied; registerMessageRef fn + imports already present). +docs Expose section. No snapshot churn (binding/expose don't change markup)"
+      "summary": "feat(Modal/Slideover): add leave and enter events (#6596) — Modal.vue + Slideover.vue: add 'leave':[] and 'enter':[] to *Emits and wire @enter=emits('enter') / @leave=emits('leave') on the reka dialog content (alongside existing after:enter/after:leave). Direct 1:1 (both matched the pre-change). Docs untouched (emit tables generated from component-meta). No snapshot churn"
     }
   }
 }

src/runtime/components/Modal.vue

@@ -71,7 +71,9 @@ export interface ModalProps extends DialogRootProps {
 }
 
 export interface ModalEmits extends DialogRootEmits {
+  'leave': []
   'after:leave': []
+  'enter': []
   'after:enter': []
   'close:prevent': []
 }
@@ -164,7 +166,9 @@ const b24ui = computed(() => tv({ extend: tv(theme), ...(appConfig.b24ui?.modal
         data-slot="content"
         :class="b24ui.content({ class: [!slots.default && props.class, props.b24ui?.content] })"
         v-bind="contentProps"
+        @enter="emits('enter')"
         @after-enter="emits('after:enter')"
+        @leave="emits('leave')"
         @after-leave="emits('after:leave')"
         v-on="contentEvents"
       >

src/runtime/components/Slideover.vue

@@ -68,7 +68,9 @@ export interface SlideoverProps extends DialogRootProps {
 }
 
 export interface SlideoverEmits extends DialogRootEmits {
+  'leave': []
   'after:leave': []
+  'enter': []
   'after:enter': []
   'close:prevent': []
 }
@@ -169,7 +171,9 @@ const isBtnCloseExternal = computed(() => (!props.inset && ['left', 'right', 'bo
           data-slot="content"
           :class="b24ui.content({ class: [!slots.default && props.class, props.b24ui?.content] })"
           v-bind="contentProps"
+          @enter="emits('enter')"
           @after-enter="emits('after:enter')"
+          @leave="emits('leave')"
           @after-leave="emits('after:leave')"
           v-on="contentEvents"
         >