docs: 新增 README + 更新 Deploy.md + 整理 .gitignore

- 新增 README.md 完整项目概览（架构、功能、快速开始）
- 更新 Deploy.md 修正过时的服务状态和端口信息
- 整理 .gitignore 补充缺失规则并移除无效项

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

.gitignore

@@ -1,29 +1,17 @@
+# ========== 依赖 ==========
 node_modules/
+
+# ========== 构建产物 ==========
 dist/
-.env
-backend/.env
-*.log
-data/
-docs/
-.DS_Store
-dev_must_read.md
-scripts/tunnel.sh
-.debug/
+*.exe
 
-# Test scripts
-test/
-
-# DevTools
-devtools/node_modules/
-devtools/logs/
-devtools/package-lock.json
-
-# Go 编译二进制 (模块根 + cmd/ 内产出)
+# ========== Go 编译二进制 ==========
 backend/ai-core/main
 backend/ai-core/cmd/main
 backend/ai-core/ai-core
 backend/gateway/main
 backend/gateway/cmd/main
+backend/gateway/cmd/gateway
 backend/gateway/gateway
 backend/iot-debug-service/main
 backend/iot-debug-service/cmd/main
@@ -32,25 +20,49 @@ backend/memory-service/main
 backend/memory-service/cmd/main
 backend/memory-service/memory-service
 backend/tool-engine/main
+backend/tool-engine/cmd/main
 backend/tool-engine/cmd/tool-engine
 backend/tool-engine/tool-engine
-backend/voice-service/voice-service
-backend/voice-service/cmd/voice-service
-
-# Compiled binaries (voice-service)
 backend/voice-service/main
-backend/voice-service/main2
-backend/voice-service/voice-svc-new
+backend/voice-service/cmd/main
+backend/voice-service/cmd/voice-service
+backend/voice-service/voice-service
+backend/cmd/
 
-# Compiled binaries (gateway)
-backend/gateway/cmd/gateway
-
-# Stale build artifact (legacy)
-backend/cmd
-
-# 用户上传文件
+# ========== 运行时数据 ==========
+logs/
+*.log
+*.pid
+uploads/
 backend/gateway/uploads/
+data/
 
-# Voice Service 外部依赖 (C++编译产物 / 模型文件)
+# ========== 环境与敏感配置 ==========
+.env
+backend/.env
+.claude/
+
+# ========== 文档 (项目规范：docs/ 不纳入版本管理) ==========
+docs/
+
+# ========== 调试临时文件 (项目规范：debug/cache/ 为临时脚本目录) ==========
+debug/cache/
+debug/logs/
+
+# ========== DevTools 运行时 ==========
+devtools/node_modules/
+devtools/logs/
+devtools/package-lock.json
+
+# ========== 语音服务外部依赖 (C++ 编译产物 / 模型文件) ==========
 backend/voice-service/whisper.cpp/
-backend/voice-service/models/
+backend/voice-service/models/
+
+# ========== 打包归档 ==========
+*.tar.gz
+*.zip
+
+# ========== 平台杂项 ==========
+.DS_Store
+Thumbs.db
+scripts/tunnel.sh