diff --git a/.gitignore b/.gitignore
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--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,52 @@
+# 开发设计文档（本地参考，不入库）
+DevDocs/
+
+# 环境变量与密钥
+.env
+models.json
+*.local
+*.pem
+*.key
+
+# 构建产物
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+backend/cmd/*/main
+backend/cmd/*/cyrene
+cyrene
+
+# Go
+backend/vendor/
+
+# 前端
+node_modules/
+dist/
+.vite/
+
+# Python
+__pycache__/
+*.pyc
+.venv/
+venv/
+*.egg-info/
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+
+# 系统
+.DS_Store
+Thumbs.db
+desktop.ini
+
+# 日志
+*.log
+
+# 临时文件
+tmp/
+temp/
diff --git a/backend/internal/auth/.gitkeep b/backend/internal/auth/.gitkeep
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diff --git a/backend/internal/config/.gitkeep b/backend/internal/config/.gitkeep
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diff --git a/backend/internal/logger/.gitkeep b/backend/internal/logger/.gitkeep
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diff --git a/backend/services/gateway/.gitkeep b/backend/services/gateway/.gitkeep
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diff --git a/configs/persona/.gitkeep b/configs/persona/.gitkeep
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diff --git a/frontend/web/src/api/.gitkeep b/frontend/web/src/api/.gitkeep
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diff --git a/frontend/web/src/components/admin/.gitkeep b/frontend/web/src/components/admin/.gitkeep
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diff --git a/frontend/web/src/components/chat/.gitkeep b/frontend/web/src/components/chat/.gitkeep
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diff --git a/frontend/web/src/components/persona/.gitkeep b/frontend/web/src/components/persona/.gitkeep
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diff --git a/frontend/web/src/pages/admin/.gitkeep b/frontend/web/src/pages/admin/.gitkeep
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