docs: add auto-configuration feature to README

Document the new automatic device configuration feature:
- Add Auto-Configuration section (now section 1)
- Update numbering for configuration sections (2-5)
- Include example partition_info.json output
- Explain trigger condition and generated files

Author: toraidl

README.md

@@ -167,7 +167,31 @@ sudo python3 main.py --stock <底包路径> --port <移植包路径> --pack-type
 
 本项目采用模块化的 JSON 配置系统。
 
-### 1. 设备配置 (`config.json`)
+### 1. 自动设备配置 (Auto-Configuration)
+工具支持从底包 (Stock ROM) 自动提取设备信息并创建设备配置。
+
+- **触发条件**: 当 `devices/<机型代码>/` 目录不存在时自动触发
+- **数据来源**: 通过 `payload-dumper --json` 提取分区信息和元数据
+- **生成文件**:
+  - `config.json` - 设备基本配置
+  - `features.json` - 功能开关和属性
+  - `replacements.json` - 资源替换规则
+  - `partition_info.json` - 分区布局信息（动态分区列表、固件分区列表、super 大小）
+
+**示例生成的 partition_info.json**:
+```json
+{
+    "device_code": "myron",
+    "super_size": 14485028864,
+    "dynamic_partitions": [
+        "odm", "product", "system", "system_dlkm",
+        "system_ext", "vendor", "vendor_dlkm", "mi_ext"
+    ],
+    "firmware_partitions": ["abl", "aop", "boot", ...]
+}
+```
+
+### 2. 设备配置 (`config.json`)
 控制设备特定的设置，包括 wild_boost、打包类型和 KSU。
 - **位置**: `devices/<机型代码>/config.json`
 - **优先级**: CLI 参数 > `config.json` > 默认值
@@ -193,7 +217,7 @@ sudo python3 main.py --stock <底包路径> --port <移植包路径> --pack-type
 sudo python3 main.py --stock stock.zip --port port.zip --pack-type super --fs-type ext4
 ```
 
-### 2. 狂暴引擎支持
+### 3. 狂暴引擎支持
 根据内核版本自动安装性能增强模块。
 
 **功能特性:**
@@ -209,7 +233,7 @@ sudo python3 main.py --stock stock.zip --port port.zip --pack-type super --fs-ty
 - 小米 12S (mayfly) - 内核 5.10
 - 小米 13 (fuxi) - 内核 5.15
 
-### 3. 特性开关 (`features.json`)
+### 4. 特性开关 (`features.json`)
 管理每个设备的系统特性和属性。
 - **位置**: `devices/<机型代码>/features.json`
 
@@ -225,7 +249,7 @@ sudo python3 main.py --stock stock.zip --port port.zip --pack-type super --fs-ty
 }
 ```
 
-### 4. 资源 overlays (`replacements.json`)
+### 5. 资源 overlays (`replacements.json`)
 自动化文件/目录替换（如 overlays、音频配置等）。
 ```json
 [

README_EN.md

@@ -169,7 +169,31 @@ sudo python3 main.py --stock <path_to_stock_zip> --port <path_to_port_zip> --pac
 
 The tool uses a modular JSON-based configuration system.
 
-### 1. Device Configuration (`config.json`)
+### 1. Auto-Configuration
+The tool supports automatic device configuration extraction from the Stock ROM.
+
+- **Trigger**: Automatically triggered when `devices/<device_code>/` directory does not exist
+- **Data Source**: Extracts partition info and metadata via `payload-dumper --json`
+- **Generated Files**:
+  - `config.json` - Device base configuration
+  - `features.json` - Feature toggles and properties
+  - `replacements.json` - Resource replacement rules
+  - `partition_info.json` - Partition layout (dynamic partitions, firmware partitions, super size)
+
+**Example generated partition_info.json**:
+```json
+{
+    "device_code": "myron",
+    "super_size": 14485028864,
+    "dynamic_partitions": [
+        "odm", "product", "system", "system_dlkm",
+        "system_ext", "vendor", "vendor_dlkm", "mi_ext"
+    ],
+    "firmware_partitions": ["abl", "aop", "boot", ...]
+}
+```
+
+### 2. Device Configuration (`config.json`)
 Control device-specific settings including wild_boost, pack type, and KSU.
 - **Location**: `devices/<device_code>/config.json`
 - **Priority**: CLI args > `config.json` > defaults
@@ -195,7 +219,7 @@ Control device-specific settings including wild_boost, pack type, and KSU.
 sudo python3 main.py --stock stock.zip --port port.zip --pack-type super --fs-type ext4
 ```
 
-### 2. Wild Boost Support
+### 3. Wild Boost Support
 Automatically installs performance boost modules based on kernel version.
 
 **Features:**
@@ -211,7 +235,7 @@ Automatically installs performance boost modules based on kernel version.
 - Xiaomi 12S (mayfly) - Kernel 5.10
 - Xiaomi 13 (fuxi) - Kernel 5.15
 
-### 3. Feature Toggles (`features.json`)
+### 4. Feature Toggles (`features.json`)
 Manage system features and properties per device.
 - **Location**: `devices/<device_code>/features.json`
 
@@ -227,7 +251,7 @@ Manage system features and properties per device.
 }
 ```
 
-### 4. Resource Overlays (`replacements.json`)
+### 5. Resource Overlays (`replacements.json`)
 Automate file/directory replacements (e.g., overlays, audio configs).
 ```json
 [