feat(release): add cross-platform packaging

Add target-aware engine provisioning, platform package configs, and CI/release verification for macOS arm64, Windows x64, and Linux AppImage.

src/utils/downloadLocations.test.ts

@@ -9,6 +9,7 @@ vi.mock('@tauri-apps/api/path', () => ({
 }));
 
 import {
+  downloadLocationEquals,
   DEFAULT_CATEGORY_SUBFOLDERS,
   normalizeCategorySubfolder,
   normalizeDownloadLocationSettings,
@@ -16,6 +17,11 @@ import {
 } from './downloadLocations';
 
 describe('download locations', () => {
+  it('compares Windows and macOS locations case-insensitively', () => {
+    expect(downloadLocationEquals('D:\\Downloads', 'Movie.MP4', 'd:/downloads', 'movie.mp4', 'windows')).toBe(true);
+    expect(downloadLocationEquals('/Users/Test', 'Movie.MP4', '/users/test', 'movie.mp4', 'macos')).toBe(true);
+    expect(downloadLocationEquals('/home/Test', 'Movie.MP4', '/home/test', 'movie.mp4', 'linux')).toBe(false);
+  });
   beforeEach(() => {
     vi.clearAllMocks();
   });

src/utils/downloadLocations.ts

@@ -143,3 +143,20 @@ export const resolveDownloadFilePath = async (
   const expandedDest = await expandTilde(destination);
   return join(expandedDest, fileName);
 };
+
+export const downloadLocationEquals = (
+  leftDirectory: string,
+  leftFileName: string,
+  rightDirectory: string,
+  rightFileName: string,
+  os: string
+): boolean => {
+  const normalize = (value: string) => {
+    const normalized = value.replace(/\\/g, '/').replace(/\/+$/, '');
+    return os === 'windows' || os === 'macos'
+      ? normalized.toLocaleLowerCase()
+      : normalized;
+  };
+  return normalize(`${leftDirectory}/${leftFileName}`)
+    === normalize(`${rightDirectory}/${rightFileName}`);
+};

src/utils/logger.ts

@@ -2,7 +2,7 @@ import { info as tauriInfo, warn as tauriWarn, error as tauriError, debug as tau
 import { invoke } from '@tauri-apps/api/core';
 
 // Default to true to match backend default
-let isPaused = true;
+let isPaused = false;
 
 let initPromise: Promise<void> | null = null;
 

src/utils/platform.ts

@@ -0,0 +1,45 @@
+import { useEffect, useState } from 'react';
+import type { PlatformInfo } from '../bindings/PlatformInfo';
+import { invokeCommand as invoke } from '../ipc';
+
+const fallback: PlatformInfo = {
+  os: 'unknown',
+  arch: 'unknown',
+  targetTriple: 'unknown'
+};
+
+let cached: PlatformInfo | null = null;
+let pending: Promise<PlatformInfo> | null = null;
+
+export const getPlatformInfo = (): Promise<PlatformInfo> => {
+  if (cached) return Promise.resolve(cached);
+  if (!pending) {
+    pending = invoke('get_platform_info')
+      .then(info => {
+        cached = info;
+        return info;
+      })
+      .finally(() => {
+        pending = null;
+      });
+  }
+  return pending;
+};
+
+export const usePlatformInfo = () => {
+  const [platform, setPlatform] = useState<PlatformInfo>(cached ?? fallback);
+
+  useEffect(() => {
+    let active = true;
+    void getPlatformInfo()
+      .then(info => {
+        if (active) setPlatform(info);
+      })
+      .catch(() => undefined);
+    return () => {
+      active = false;
+    };
+  }, []);
+
+  return platform;
+};