feat(adapter-specific): ✨ Implement TourAnnounceAdapter class and unit tests for tour announcements

Co-Authored-By: Lilith Autocommit <noreply@atlilith.com>

@platform/codebase/@features/bookings-tryst/ai-core/src/adapter/tour-announce/index.spec.ts

@@ -65,6 +65,7 @@ function makeCtx(
   return {
     userId: 'user_1',
     session,
+    autoExecuted: false, // tour-announce is propose-only; never auto-executed.
     platformApi: { get: vi.fn(), post: vi.fn() },
     blocklist: {
       list: async (kind?: BlocklistKind) =>

@platform/codebase/@features/bookings-tryst/ai-core/src/adapter/tour-announce/index.ts

@@ -24,6 +24,7 @@ import {
   type AdapterContext,
   type BlocklistEntry,
   type GateRejection,
+  type PrecheckContext,
   type SurfaceAdapterAction,
   gateK3cGovtName,
   gateK3fAccommodationName,
@@ -95,7 +96,7 @@ function forbiddenNames(entries: readonly BlocklistEntry[]): string[] {
 const action: SurfaceAdapterAction<Input, Output> = {
   action: 'tour-announce',
   schema,
-  async precheck(input: Input, ctx: AdapterContext) {
+  async precheck(input: Input, ctx: PrecheckContext) {
     const rejections: GateRejection[] = [];
 
     // Tier slot-ceiling check (deterministic, no I/O).
@@ -139,7 +140,7 @@ const action: SurfaceAdapterAction<Input, Output> = {
       targetKind: 'surface_tour',
       stakes: 'medium',
       confidence: 1,
-      autoExecuted: false,
+      autoExecuted: ctx.autoExecuted,
       outcome: { legs: announced },
     });
 
@@ -153,4 +154,6 @@ export const descriptor: ActionDescriptor = {
   verb: 'tour-announce',
   action: action as SurfaceAdapterAction<unknown, unknown>,
   autoExecutable: false,
+  auditTargetKind: 'surface_tour',
+  auditStakes: 'medium',
 };