feat: add stage 0 foundation

backend/config/settings/__init__.py

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+

backend/config/settings/base.py

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+import os
+from pathlib import Path
+
+BASE_DIR = Path(__file__).resolve().parents[3]
+
+SECRET_KEY = os.getenv("DJANGO_SECRET_KEY", "dev-only-change-me")
+DEBUG = os.getenv("DJANGO_DEBUG", "false").lower() == "true"
+ALLOWED_HOSTS = os.getenv("DJANGO_ALLOWED_HOSTS", "localhost,127.0.0.1").split(",")
+
+INSTALLED_APPS = [
+    "django.contrib.admin",
+    "django.contrib.auth",
+    "django.contrib.contenttypes",
+    "django.contrib.sessions",
+    "django.contrib.messages",
+    "django.contrib.staticfiles",
+    "corsheaders",
+    "apps.accounts",
+    "apps.audit",
+    "apps.system",
+]
+
+MIDDLEWARE = [
+    "corsheaders.middleware.CorsMiddleware",
+    "django.middleware.security.SecurityMiddleware",
+    "django.contrib.sessions.middleware.SessionMiddleware",
+    "django.middleware.common.CommonMiddleware",
+    "django.middleware.csrf.CsrfViewMiddleware",
+    "django.contrib.auth.middleware.AuthenticationMiddleware",
+    "django.contrib.messages.middleware.MessageMiddleware",
+    "django.middleware.clickjacking.XFrameOptionsMiddleware",
+]
+
+ROOT_URLCONF = "config.urls"
+
+TEMPLATES = [
+    {
+        "BACKEND": "django.template.backends.django.DjangoTemplates",
+        "DIRS": [],
+        "APP_DIRS": True,
+        "OPTIONS": {
+            "context_processors": [
+                "django.template.context_processors.debug",
+                "django.template.context_processors.request",
+                "django.contrib.auth.context_processors.auth",
+                "django.contrib.messages.context_processors.messages",
+            ],
+        },
+    }
+]
+
+WSGI_APPLICATION = "config.wsgi.application"
+ASGI_APPLICATION = "config.asgi.application"
+
+DATABASES = {
+    "default": {
+        "ENGINE": "django.db.backends.postgresql",
+        "NAME": os.getenv("POSTGRES_DB", "ai_ticket_platform"),
+        "USER": os.getenv("POSTGRES_USER", "ai_ticket"),
+        "PASSWORD": os.getenv("POSTGRES_PASSWORD", "ai_ticket"),
+        "HOST": os.getenv("POSTGRES_HOST", "localhost"),
+        "PORT": int(os.getenv("POSTGRES_PORT", "5432")),
+    }
+}
+
+LANGUAGE_CODE = "zh-hans"
+TIME_ZONE = "Asia/Shanghai"
+USE_I18N = True
+USE_TZ = True
+
+STATIC_URL = "static/"
+DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
+
+CORS_ALLOWED_ORIGINS = os.getenv(
+    "CORS_ALLOWED_ORIGINS",
+    "http://localhost:5173",
+).split(",")
+
+CELERY_BROKER_URL = os.getenv("CELERY_BROKER_URL", "redis://localhost:6379/0")
+CELERY_RESULT_BACKEND = os.getenv("CELERY_RESULT_BACKEND", "redis://localhost:6379/1")

backend/config/settings/local.py

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+from .base import *  # noqa: F403
+
+DEBUG = True

backend/config/settings/test.py

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+from .base import *  # noqa: F403
+
+DATABASES = {
+    "default": {
+        "ENGINE": "django.db.backends.sqlite3",
+        "NAME": ":memory:",
+    }
+}
+
+PASSWORD_HASHERS = [
+    "django.contrib.auth.hashers.MD5PasswordHasher",
+]