Server-side scenario execution: thin effects client replaces local engine

- engine/ (DagWalker, sessions, IndexedDbPlanStore) deleted; server owns the graph
- trigger/callback/counter carry PendingEffect; GET /sdk/v1/scenarios/pending polled
  (30s jittered heartbeat paused on hidden tab + wait-deadline timers)
- client.effects public API unchanged (done/buy/dismiss/end/claim/battlepass/quest)
- planStateStore removed; loginEvent kept; reconcile() makes server the source of truth
- generated models regenerated; skills/README/CHANGELOG updated

src/generated/api.ts

@@ -9,7 +9,7 @@ import type { PlayerProfile } from './player.js';
 import type { GetProjectStorageResponse, UpdateProjectStorageRequest } from './project-storage.js';
 import type { ClaimQuestRequest, ClaimQuestResponse, ListQuestsResponse, ReportQuestProgressRequest, ReportQuestProgressResponse } from './quests.js';
 import type { ListRemoteConfigsResponse, RemoteConfig } from './remote-config.js';
-import type { GetScenarioRunRequest, GetScenarioRunResponse, HandleScenarioCallbackRequest, HandleScenarioCallbackResponse, TriggerScenarioRequest, TriggerScenarioResponse, UpdateScenarioCounterRequest, UpdateScenarioCounterResponse } from './scenarios.js';
+import type { HandleScenarioCallbackRequest, HandleScenarioCallbackResponse, ListPendingScenarioEffectsResponse, TriggerScenarioRequest, TriggerScenarioResponse, UpdateScenarioCounterRequest, UpdateScenarioCounterResponse } from './scenarios.js';
 import type { GetStorageResponse, UpdateStorageRequest } from './storage.js';
 import type { ListStoresResponse, PurchaseOfferRequest, PurchaseOfferResponse, Store } from './stores.js';
 
@@ -100,12 +100,6 @@ export const api = {
   ): Promise<{ [key: string]: number }> =>
     t.request<{ [key: string]: number }>('GET', '/sdk/v1/sync'),
 
-  getScenarioRun: (
-    t: Transport,
-    body: GetScenarioRunRequest,
-  ): Promise<GetScenarioRunResponse> =>
-    t.request<GetScenarioRunResponse>('POST', '/sdk/v1/scenarios/run', body),
-
   getStorage: (
     t: Transport,
     query?: { types?: string; limit?: number; cursor?: string },
@@ -129,6 +123,11 @@ export const api = {
   ): Promise<ListCatalogItemsResponse> =>
     t.request<ListCatalogItemsResponse>('GET', '/sdk/v1/catalog'),
 
+  listPendingScenarioEffects: (
+    t: Transport,
+  ): Promise<ListPendingScenarioEffectsResponse> =>
+    t.request<ListPendingScenarioEffectsResponse>('GET', '/sdk/v1/scenarios/pending'),
+
   listQuests: (
     t: Transport,
   ): Promise<ListQuestsResponse> =>

src/generated/battlepass.ts

@@ -1,6 +1,6 @@
 // Code generated by apigen. DO NOT EDIT.
 
-import type { ExecutionPlan, Reward } from './common.js';
+import type { Reward } from './common.js';
 
 export interface AddBattlePassXpRequest {
   "amount"?: number;
@@ -14,7 +14,6 @@ export interface AddBattlePassXpResponse {
   "level"?: number;
   "leveledUp"?: boolean;
   "maxLevel"?: boolean;
-  "plan"?: ExecutionPlan;
   "xp"?: number;
 }
 
@@ -59,7 +58,6 @@ export interface PurchaseBattlePassPremiumRequest {
 
 export interface PurchaseBattlePassPremiumResponse {
   "error"?: string;
-  "plan"?: ExecutionPlan;
   "success"?: boolean;
 }
 

src/generated/common.ts

@@ -1,15 +1,5 @@
 // Code generated by apigen. DO NOT EDIT.
 
-export interface BoundaryNode {
-  "callbackUrl"?: string;
-  "enforcement"?: "client" | "server";
-  "enteredAt"?: string;
-  "nodeId"?: string;
-  "sourceHandle"?: string;
-  "sourceNodeId"?: string;
-  "waitDeadline"?: string;
-}
-
 export interface ErrorResponse {
   "code"?: "early_completion" | "forbidden" | "level_not_reached" | "node_not_active" | "objectives_incomplete" | "run_expired" | "run_not_active" | "scenario_not_active" | "unknown_run";
   "error"?: string;
@@ -18,32 +8,6 @@ export interface ErrorResponse {
   "requestId"?: string;
 }
 
-export interface ExecutionPlan {
-  "boundaryNodes"?: BoundaryNode[];
-  "context"?: { [key: string]: unknown };
-  "edges"?: PlanEdge[];
-  "nodes"?: ExecutionPlanNode[];
-  "planId"?: string;
-  "runId"?: string;
-  "scenarioId"?: string;
-  "startNodeId"?: string;
-  "userId"?: string;
-}
-
-export interface ExecutionPlanNode {
-  "data"?: { [key: string]: unknown };
-  "id"?: string;
-  "type"?: string;
-}
-
-export interface PlanEdge {
-  "id"?: string;
-  "source"?: string;
-  "sourceHandle"?: string;
-  "target"?: string;
-  "targetHandle"?: string;
-}
-
 export interface Reward {
   "amount"?: number;
   "currency"?: string;

src/generated/scenarios.ts

@@ -1,17 +1,5 @@
 // Code generated by apigen. DO NOT EDIT.
 
-import type { ExecutionPlan } from './common.js';
-
-export interface GetScenarioRunRequest {
-  "runId"?: string;
-}
-
-export interface GetScenarioRunResponse {
-  "plan"?: ExecutionPlan;
-  "runId"?: string;
-  "status"?: "active" | "completed" | "expired";
-}
-
 export interface HandleScenarioCallbackRequest {
   "handle"?: string;
   "nodeId"?: string;
@@ -20,7 +8,20 @@ export interface HandleScenarioCallbackRequest {
 }
 
 export interface HandleScenarioCallbackResponse {
-  "plan"?: ExecutionPlan;
+  "effect"?: PendingEffect;
+}
+
+export interface ListPendingScenarioEffectsResponse {
+  "effects": PendingEffect[];
+}
+
+export interface PendingEffect {
+  "data": { [key: string]: unknown };
+  "nodeId": string;
+  "runId": string;
+  "scenarioId": string;
+  "type": string;
+  "waitDeadline"?: string;
 }
 
 export interface TriggerScenarioRequest {
@@ -28,7 +29,7 @@ export interface TriggerScenarioRequest {
 }
 
 export interface TriggerScenarioResponse {
-  "plans"?: ExecutionPlan[];
+  "effects": PendingEffect[];
 }
 
 export interface UpdateScenarioCounterRequest {
@@ -41,6 +42,6 @@ export interface UpdateScenarioCounterRequest {
 
 export interface UpdateScenarioCounterResponse {
   "completed"?: boolean;
-  "plan"?: ExecutionPlan;
+  "effect"?: PendingEffect;
 }