feat(FN-2613): merge fusion/fn-2613 (auto-resolved)

- fix(FN-2613): restore green CI after static engine import changes
- test(FN-2613): complete Step 3 — update mobile and standalone CSS assertions
- feat(FN-2613): complete Step 2 — move standalone token override to global styles

packages/dashboard/src/chat.ts

@@ -29,10 +29,17 @@ import * as engine from "@fusion/engine";
 
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 type AgentResult = any;
+const engineExports = engine as Record<string, unknown>;
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 let createFnAgent: any = engine.createFnAgent;
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
-let buildAgentChatPromptFn: any = "buildAgentChatPrompt" in engine ? engine.buildAgentChatPrompt : undefined;
+const defaultBuildAgentChatPromptFn: any =
+  "buildAgentChatPrompt" in engineExports &&
+  typeof engineExports["buildAgentChatPrompt"] === "function"
+    ? engineExports["buildAgentChatPrompt"]
+    : undefined;
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+let buildAgentChatPromptFn: any = defaultBuildAgentChatPromptFn;
 
 /**
  * Diagnostics logger for the chat module.
@@ -897,7 +904,7 @@ export function __setBuildAgentChatPrompt(mock: typeof buildAgentChatPromptFn):
 export function __resetChatState(): void {
   chatStreamManager.reset();
   rateLimits.clear();
-  buildAgentChatPromptFn = "buildAgentChatPrompt" in engine ? engine.buildAgentChatPrompt : undefined;
+  buildAgentChatPromptFn = defaultBuildAgentChatPromptFn;
 
   // Reset diagnostics logger to default
   __setChatDiagnostics(null);

packages/dashboard/src/planning.ts

@@ -37,6 +37,43 @@ type AgentResult = any;
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 let createFnAgent: any = engine.createFnAgent;
 
+const engineExports = engine as Record<string, unknown>;
+const engineIsNtfyEventEnabled =
+  ("isNtfyEventEnabled" in engineExports &&
+  typeof engineExports["isNtfyEventEnabled"] === "function"
+    ? engineExports["isNtfyEventEnabled"]
+    : (events: NtfyNotificationEvent[] | undefined, event: NtfyNotificationEvent) =>
+        Array.isArray(events) && events.includes(event)) as (
+    events: NtfyNotificationEvent[] | undefined,
+    event: NtfyNotificationEvent
+  ) => boolean;
+const engineBuildNtfyClickUrl =
+  ("buildNtfyClickUrl" in engineExports &&
+  typeof engineExports["buildNtfyClickUrl"] === "function"
+    ? engineExports["buildNtfyClickUrl"]
+    : (_options: { dashboardHost?: string; projectId?: string; taskId?: string }) => undefined) as (
+    options: { dashboardHost?: string; projectId?: string; taskId?: string }
+  ) => string | undefined;
+const engineSendNtfyNotification =
+  ("sendNtfyNotification" in engineExports &&
+  typeof engineExports["sendNtfyNotification"] === "function"
+    ? engineExports["sendNtfyNotification"]
+    : async (_input: {
+        ntfyBaseUrl?: string;
+        topic: string;
+        title: string;
+        message: string;
+        priority?: "low" | "default" | "high" | "urgent";
+        clickUrl?: string;
+      }) => {}) as (input: {
+    ntfyBaseUrl?: string;
+    topic: string;
+    title: string;
+    message: string;
+    priority?: "low" | "default" | "high" | "urgent";
+    clickUrl?: string;
+  }) => Promise<void>;
+
 interface PlanningNtfyConfig {
   enabled: boolean;
   topic?: string;

packages/engine/src/index.ts

@@ -22,10 +22,16 @@ export { createFnAgent, promptWithFallback, describeModel, setHostExtensionPaths
 // Register createFnAgent into core's loader so consumers in @fusion/core
 // (e.g. ai-summarize, memory-compaction) can resolve it without a circular
 // static import. Runs once at engine module load.
-import * as core from "@fusion/core";
+import * as fusionCore from "@fusion/core";
 import { createFnAgent as _createFnAgentForCore } from "./pi.js";
-if ("setCreateFnAgent" in core) {
-  core.setCreateFnAgent?.(_createFnAgentForCore);
+const fusionCoreExports = fusionCore as Record<string, unknown>;
+if (
+  "setCreateFnAgent" in fusionCoreExports &&
+  typeof fusionCoreExports["setCreateFnAgent"] === "function"
+) {
+  (fusionCoreExports["setCreateFnAgent"] as (factory: typeof _createFnAgentForCore) => void)(
+    _createFnAgentForCore
+  );
 }
 export {
   resolveSessionSkills,