Release v3.6.0: Major architecture refactoring and feature enhancements

New Features:
- Provider duplication and manual sorting via drag-and-drop
- Custom endpoint management for aggregator providers
- Usage query with auto-refresh interval and test script API
- Config editor improvements (JSON format button, real-time TOML validation)
- Auto-sync on directory change for WSL environment support
- Load live config when editing active provider to protect manual modifications
- New provider presets: DMXAPI, Azure Codex, AnyRouter, AiHubMix, MiniMax
- Partner promotion mechanism (Zhipu GLM Z.ai)

Architecture Improvements:
- Backend: 5-phase refactoring (error handling → command split → services → concurrency)
- Frontend: 4-stage refactoring (tests → hooks → components → cleanup)
- Testing: 100% hooks unit test coverage, integration tests for critical flows

Documentation:
- Complete README rewrite with detailed architecture overview
- Separate Chinese (README_ZH.md) and English (README.md) versions
- Comprehensive v3.6.0 changelog with categorized changes
- New bilingual screenshots and partner banners

Bug Fixes:
- Fixed configuration sync issues (apiKeyUrl priority, MCP sync, import sync)
- Fixed usage query interval timing and refresh button animation
- Fixed UI issues (edit mode alignment, language switch state)
- Fixed endpoint speed test and provider duplicate insertion position
- Force exit on config error to prevent silent fallback

Technical Details:
- Updated to Tauri 2.8.x, TailwindCSS 4.x, TanStack Query v5.90.x
- Removed legacy v1 migration logic for better startup performance
- Standardized command parameters (unified to camelCase `app`)
- Result pattern for graceful error handling

src-tauri/Cargo.lock

@@ -563,7 +563,7 @@ dependencies = [
 
 [[package]]
 name = "cc-switch"
-version = "3.5.1"
+version = "3.6.0"
 dependencies = [
  "chrono",
  "dirs 5.0.1",

src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cc-switch"
-version = "3.5.1"
+version = "3.6.0"
 description = "Claude Code & Codex 供应商配置管理工具"
 authors = ["Jason Young"]
 license = "MIT"

src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "CC Switch",
-  "version": "3.5.1",
+  "version": "3.6.0",
   "identifier": "com.ccswitch.desktop",
   "build": {
     "frontendDist": "../dist",