fix(web): persist general preferences in host settings

packages/client/ui-conversation/src/index.ts

@@ -1,4 +1,35 @@
-/** Host loader entry for the browser-only conversation plugin. */
+/** Host registration for browser conversation preferences. */
 
-/** Provides no host-side behavior. */
-export function apply(): void {}
+import type { Context } from 'cordis'
+import z from 'schemastery'
+import { settingsNamespace } from '@deepseek-ai/dsh-settings'
+import {
+  BUSY_ENTER_BEHAVIORS, BUSY_ENTER_FIELD, CONVERSATION_SETTINGS_NAMESPACE,
+  DEFAULT_BUSY_ENTER_BEHAVIOR, type BusyEnterBehavior,
+} from './submission-settings.ts'
+
+export {
+  BUSY_ENTER_BEHAVIORS, BUSY_ENTER_FIELD, CONVERSATION_SETTINGS_NAMESPACE,
+  DEFAULT_BUSY_ENTER_BEHAVIOR, type BusyEnterBehavior,
+} from './submission-settings.ts'
+
+interface ConversationSettings {
+  busyEnter: BusyEnterBehavior
+}
+
+const ConversationSettingsSchema: z<ConversationSettings> = z.object({
+  [BUSY_ENTER_FIELD]: z.union([...BUSY_ENTER_BEHAVIORS]).default(DEFAULT_BUSY_ENTER_BEHAVIOR),
+})
+
+/**
+ * Register the durable conversation section when a settings provider exists.
+ * @param ctx - Host context whose optional settings service owns the section.
+ */
+export function apply(ctx: Context): void {
+  ctx.inject(['settings'], (settingsCtx) => {
+    settingsCtx.settings.register(
+      settingsNamespace(CONVERSATION_SETTINGS_NAMESPACE),
+      ConversationSettingsSchema,
+    )
+  })
+}