refactor: 优化main.py，移除无效代码和浏览器自动打开功能

- 移除了`extra-hooks/__init__.py`中的注释，该文件现在为空。
- 在`main.py`中移除了未使用的导入语句和函数，以及启动浏览器的代码。
- 删除了`main.spec`文件，因为它是PyInstaller打包配置的一部分，现在的更改侧重于源代码的清理和优化。

backend/extra-hooks/__init__.py

@@ -1 +0,0 @@
-# 用于build exe 使用

backend/main.py

@@ -1,27 +1,13 @@
 import multiprocessing
 import os
 import sys
-import time
-import threading
-import webbrowser
 
 root_path = os.getcwd()
 sys.path.append(root_path)
 import uvicorn
-from pathlib import Path
 from application.settings import LOGGING
 
-BASE_DIR = Path(__file__).resolve().parent.parent
-url = "http://127.0.0.1:8000/web/"
-
-
-def open_browser_after_delay(url, delay):
-    time.sleep(delay)
-    webbrowser.open(url)
-
-
 if __name__ == '__main__':
     multiprocessing.freeze_support()
-    threading.Thread(target=open_browser_after_delay, args=(url, 3)).start()
     uvicorn.run("application.asgi:application", reload=False, host="0.0.0.0", port=8000, workers=4,
                 log_config=LOGGING)

backend/main.spec

@@ -1,83 +0,0 @@
-# -*- mode: python ; coding: utf-8 -*-
-
-
-a = Analysis(
-    ['main.py'],
-    pathex=['./'],
-    binaries=[],
-    datas=[
-        ('./static', 'static'),
-        ('./static/captcha/fonts', 'captcha/fonts'),
-        ('./templates', 'templates'),
-        ('./dvadmin/system/util', 'dvadmin/system/util'),
-        ('./plugins/__init__.py', 'plugins/__init__.py'),
-        ('./db.sqlite3', './'),
-    ],
-    hiddenimports=[
-        "django",
-        "testfixtures",
-        "django.contrib.auth",
-        "django.contrib.contenttypes",
-        "django.contrib.sessions",
-        "django.contrib.messages",
-        "django.contrib.staticfiles",
-        "django_comment_migrate",
-        "rest_framework",
-        "django_filters",
-        "corsheaders",  # 注册跨域app
-        "drf_yasg",
-        "captcha",
-        "channels",
-        "dvadmin.system",
-        "plugins.gla",
-        "testfixtures",
-        "application.asgi",
-        "dvadmin.utils.middleware",
-        "whitenoise",
-        "whitenoise.middleware",
-        "whitenoise.storage",
-        "dvadmin.utils.pagination",
-        "dvadmin.utils.exception",
-        "rest_framework_simplejwt.state",
-    ],
-    hookspath=['./extra-hooks'],
-    hooksconfig={},
-    runtime_hooks=[],
-    excludes=[],
-    noarchive=False,
-    optimize=0,
-)
-pyz = PYZ(a.pure)
-
-exe = EXE(
-    pyz,
-    a.scripts,
-    [],
-    exclude_binaries=True,
-    name='main',
-    debug=False,
-    bootloader_ignore_signals=False,
-    strip=False,
-    upx=True,
-    console=False,
-    disable_windowed_traceback=False,
-    argv_emulation=False,
-    target_arch=None,
-    codesign_identity=None,
-    entitlements_file=None,
-)
-coll = COLLECT(
-    exe,
-    a.binaries,
-    a.datas,
-    strip=False,
-    upx=True,
-    upx_exclude=[],
-    name='main',
-)
-app = BUNDLE(
-    coll,
-    name='main.app',
-    icon=None,
-    bundle_identifier=None,
-)