feat(KB-330): rename internal packages from @kb/* to @fusion/*

- Rename @kb/core, @kb/dashboard, @kb/engine to @fusion/* namespace
- Update all import statements across 143+ files to use new package names
- Update workspace dependencies and root package.json references
- Fix bundler configurations (tsup, vite) for new package names
- Update test files and fix typecheck issues
- Add changeset file documenting the package rename

packages/dashboard/app/hooks/__tests__/useBatchBadgeFetch.test.ts

@@ -2,7 +2,7 @@ import { describe, it, expect, vi, beforeEach, afterEach } from "vitest";
 import { renderHook, act } from "@testing-library/react";
 import { useBatchBadgeFetch, __resetBatchBadgeStoreForTests } from "../useBatchBadgeFetch";
 import * as api from "../../api";
-import type { BatchStatusResult } from "@kb/core";
+import type { BatchStatusResult } from "@fusion/core";
 
 // Mock the API module
 vi.mock("../../api", () => ({

packages/dashboard/app/hooks/__tests__/useTasks.test.ts

@@ -19,7 +19,7 @@ import { describe, it, expect, vi, beforeEach, afterEach } from "vitest";
 import { renderHook, act, waitFor } from "@testing-library/react";
 import { useTasks } from "../useTasks";
 import * as api from "../../api";
-import type { Task, Column } from "@kb/core";
+import type { Task, Column } from "@fusion/core";
 
 // Mock the api module
 vi.mock("../../api", () => ({

packages/dashboard/app/hooks/__tests__/useTheme.test.ts

@@ -1,7 +1,7 @@
 import { readFileSync } from "node:fs";
 import { describe, it, expect, vi, beforeEach, afterEach } from "vitest";
 import { renderHook, act } from "@testing-library/react";
-import { COLOR_THEMES } from "@kb/core";
+import { COLOR_THEMES } from "@fusion/core";
 import { useTheme, getThemeInitScript } from "../useTheme";
 
 describe("useTheme", () => {

packages/dashboard/app/hooks/useAgentLogs.ts

@@ -1,5 +1,5 @@
 import { useState, useEffect, useRef, useCallback } from "react";
-import type { AgentLogEntry } from "@kb/core";
+import type { AgentLogEntry } from "@fusion/core";
 import { fetchAgentLogs } from "../api";
 
 export const MAX_LOG_ENTRIES = 500;

packages/dashboard/app/hooks/useBadgeWebSocket.ts

@@ -1,5 +1,5 @@
 import { useCallback, useEffect, useRef, useSyncExternalStore } from "react";
-import type { IssueInfo, PrInfo } from "@kb/core";
+import type { IssueInfo, PrInfo } from "@fusion/core";
 
 interface BadgeUpdatedMessage {
   type: "badge:updated";

packages/dashboard/app/hooks/useBatchBadgeFetch.ts

@@ -1,6 +1,6 @@
 import { useCallback, useRef, useState } from "react";
 import { fetchBatchStatus } from "../api";
-import type { BatchStatusResult } from "@kb/core";
+import type { BatchStatusResult } from "@fusion/core";
 
 // Module-level store to share batch data across hook instances
 const batchBadgeStore = {

packages/dashboard/app/hooks/useMultiAgentLogs.ts

@@ -1,5 +1,5 @@
 import { useState, useEffect, useRef, useCallback } from "react";
-import type { AgentLogEntry } from "@kb/core";
+import type { AgentLogEntry } from "@fusion/core";
 import { fetchAgentLogs } from "../api";
 
 export const MAX_LOG_ENTRIES = 500;

packages/dashboard/app/hooks/useTasks.ts

@@ -1,5 +1,5 @@
 import { useState, useEffect, useCallback, useRef } from "react";
-import type { Task, Column, TaskCreateInput, MergeResult } from "@kb/core";
+import type { Task, Column, TaskCreateInput, MergeResult } from "@fusion/core";
 import * as api from "../api";
 
 function normalizeTask(task: Task): Task {

packages/dashboard/app/hooks/useTheme.ts

@@ -1,5 +1,5 @@
 import { useState, useEffect, useCallback, useLayoutEffect } from "react";
-import { COLOR_THEMES, type ThemeMode, type ColorTheme } from "@kb/core";
+import { COLOR_THEMES, type ThemeMode, type ColorTheme } from "@fusion/core";
 
 const THEME_MODE_STORAGE_KEY = "kb-dashboard-theme-mode";
 const COLOR_THEME_STORAGE_KEY = "kb-dashboard-color-theme";