[doc] Refactor account and address docs

docs/website/pages/learn/core-concepts/accounts/_meta.en-US.json

@@ -1,7 +1,7 @@
 {
+  "account-address": "Accounts and Addresses",
   "account-abstraction": "Account abstraction",
   "account-abstraction-implementation": "Design and implementation of account abstraction",
-  "address-space": "Address space",
   "multi-chain-account": {
     "title": "Multi-chain account",
     "display": "hidden"

docs/website/pages/learn/core-concepts/accounts/_meta.zh-CN.json

@@ -1,7 +1,7 @@
 {
+  "account-address": "账户与地址",
   "account-abstraction": "账户抽象",
   "account-abstraction-implementation": "账户抽象的设计与实现",
-  "address-space": "地址空间",
   "multi-chain-account": {
     "title": "多链账户",
     "display": "hidden"

docs/website/pages/learn/core-concepts/accounts/account-address.en-US.mdx

@@ -0,0 +1,92 @@
+## Accounts and Addresses
+
+In Rooch, there are two types of accounts: external accounts and contract accounts. External accounts are controlled by Bitcoin private keys, while contract accounts are controlled by contract code. To standardize address formats, Rooch maps various Bitcoin addresses to a unified address using a hash function. The addresses of contract accounts are generated by an ID generation algorithm within the contract.
+
+The address generation process is illustrated as follows:
+
+```mermaid
+graph LR;
+  bkp(Bitcoin PrivateKey)
+  baddress(Bitcoin Address)
+  raddress(Rooch Address)
+  contract(Move Contract)
+  
+  bkp-->baddress
+  baddress-->|hash|raddress
+  contract-->|create account|raddress
+```
+
+## Address Format
+
+A Rooch address is a 32-byte array that can be represented as a hexadecimal string starting with `0x` or encoded using bech32. For end-user scenarios, we recommend using bech32 encoding because it is more user-friendly and helps prevent input errors.
+
+Here are some address examples:
+
+```txt
+Bitcoin: bc1q262qeyyhdakrje5qaux8m2a3r4z8sw8vu5mysh
+Rooch bech32: rooch10lnft7hhq37vl0y97lwvkmzqt48fk76y0z88rfcu8zg6qm8qegfqx0rq2h
+Rooch hex: 0x7fe695faf7047ccfbc85f7dccb6c405d4e9b7b44788e71a71c3891a06ce0ca12
+```
+
+## Reserved Address Space
+
+Rooch reserves address space for the Move standard library and the framework to facilitate developer use.
+
+* Move Standard Library Address: `0x1`
+* MoveOS Library Address: `0x2`
+* RoochFramework Address: `0x3`
+* BitcoinMove Address: `0x4`
+
+> Note: In developer scenarios, such as in Move code and Move.toml configurations, addresses need to be represented as hexadecimal strings starting with `0x`.
+
+## FAQ
+
+### Are there differences between testnet and mainnet addresses?
+
+Bitcoin testnet and mainnet addresses are different, but once mapped to Rooch addresses, they are the same.
+
+### How do I convert a Bitcoin address to a Rooch address?
+
+A Bitcoin address can be directly converted to a Rooch address via code without the need for a lookup. Refer to the specific SDK for your programming language. Below is a Rust example:
+
+```rust
+/// Convert the Bitcoin address to a Rooch address
+pub fn to_rooch_address(&self) -> RoochAddress {
+    let mut hasher = Blake2b256::default();
+    hasher.update(&self.bytes);
+    let g_arr = hasher.finalize();
+    RoochAddress(H256(g_arr.digest))
+}
+```
+
+* [address.rs#L647-L653](https://github.com/rooch-network/rooch/blob/92792257f5b832312019d9440618b9af83e89547/crates/rooch-types/src/address.rs#L647-L653)
+
+### How do I find the corresponding Bitcoin address from a Rooch address?
+
+Not all Rooch addresses have corresponding Bitcoin addresses. To retrieve them, use the `rooch_framework::address_mapping::resolve_bitcoin` method.
+
+```move
+/// Resolve a Rooch address to a Bitcoin address
+public fun resolve_bitcoin(rooch_address: address): Option<BitcoinAddress> {
+    let am = Self::borrow_rooch_to_bitcoin();
+    Self::resolve_bitcoin_address(am, rooch_address)
+}
+```
+
+* [address_mapping.move#L104-L108](https://github.com/rooch-network/rooch/blob/92792257f5b832312019d9440618b9af83e89547/frameworks/rooch-framework/sources/address_mapping.move#L104-L108)
+
+### What type of address should be used when calling RPC?
+
+Rooch's RPC and command-line tool address parameters support both Bitcoin addresses and Rooch addresses. Developers can choose based on their needs.
+
+### How to Create a Contract Account?
+
+To create a contract account, call the `moveos_std::account::create_account` method within the contract. This method returns an `Object<Account>`. Developers can store this object in their data structure and use it to operate the contract account.
+
+```move
+/// Create an Account Object with a generated address
+public fun create_account(): Object<Account> {
+  let new_address = tx_context::fresh_address();
+  create_account_object(new_address)
+}
+```

docs/website/pages/learn/core-concepts/accounts/account-address.zh-CN.mdx

@@ -0,0 +1,92 @@
+## 账户与地址
+
+在 Rooch 中，有两类账户：外部账户和合约账户。外部账户由 Bitcoin 私钥控制，合约账户由合约代码控制。为了统一地址格式，Rooch 通过哈希函数将 Bitcoin 的多种地址映射到统一的地址，而合约账户的地址则通过合约内的 ID 生成算法生成。
+
+地址生成示意图如下：
+
+```mermaid
+graph LR;
+  bkp(Bitcoin PrivateKey)
+  baddress(Bitcoin Address)
+  raddress(Rooch Address)
+  contract(Move Contract)
+  
+  bkp-->baddress
+  baddress-->|hash|raddress
+  contract-->|create account|raddress
+```
+
+## 地址格式
+
+Rooch 地址是一个 32 字节的数组，可以表示为以 `0x` 开头的十六进制字符串，或使用 bech32 编码。在面向最终用户的场景中，我们推荐使用 bech32 编码，因为这种编码更友好，且可以减少用户输入错误。
+
+地址示例如下：
+
+```txt
+Bitcoin: bc1q262qeyyhdakrje5qaux8m2a3r4z8sw8vu5mysh
+Rooch bech32: rooch10lnft7hhq37vl0y97lwvkmzqt48fk76y0z88rfcu8zg6qm8qegfqx0rq2h
+Rooch hex: 0x7fe695faf7047ccfbc85f7dccb6c405d4e9b7b44788e71a71c3891a06ce0ca12
+```
+
+## 系统预留地址空间
+
+Rooch 为 Move 标准库和框架预留了地址空间，方便开发者使用。
+
+* Move 标准库地址：`0x1`
+* MoveOS 库地址：`0x2`
+* RoochFramework 地址：`0x3`
+* BitcoinMove 地址：`0x4`
+
+> 注：在开发者场景（如 Move 代码和 Move.toml 配置中），需要使用以 `0x` 开头的十六进制字符串表示地址。
+
+## 常见问题 (FAQ)
+
+### 测试网地址和主网地址是否有区别？
+
+Bitcoin 的测试网地址和主网地址有区别，但映射成 Rooch 地址后，两者是一样的。
+
+### 如何通过 Bitcoin 地址查询对应的 Rooch 地址？
+
+Bitcoin 地址可以直接通过代码生成对应的 Rooch 地址，不需要查询。具体方法请参考相关开发语言的 SDK。以下是 Rust 示例：
+
+```rust
+/// 将 Bitcoin 地址转换为 Rooch 地址
+pub fn to_rooch_address(&self) -> RoochAddress {
+    let mut hasher = Blake2b256::default();
+    hasher.update(&self.bytes);
+    let g_arr = hasher.finalize();
+    RoochAddress(H256(g_arr.digest))
+}
+```
+
+* [address.rs#L647-L653](https://github.com/rooch-network/rooch/blob/92792257f5b832312019d9440618b9af83e89547/crates/rooch-types/src/address.rs#L647-L653)
+
+### 如何通过 Rooch 地址查询对应的 Bitcoin 地址？
+
+并不是所有的 Rooch 地址都有对应的 Bitcoin 地址，需要通过 `rooch_framework::address_mapping::resolve_bitcoin` 方法来检索。
+
+```move
+/// 将 Rooch 地址解析为 Bitcoin 地址
+public fun resolve_bitcoin(rooch_address: address): Option<BitcoinAddress> {
+    let am = Self::borrow_rooch_to_bitcoin();
+    Self::resolve_bitcoin_address(am, rooch_address)
+}
+```
+
+* [address_mapping.move#L104-L108](https://github.com/rooch-network/rooch/blob/92792257f5b832312019d9440618b9af83e89547/frameworks/rooch-framework/sources/address_mapping.move#L104-L108)
+
+### 调用接口时应该使用什么样的地址？
+
+Rooch 的 RPC 接口和命令行工具的地址参数同时支持 Bitcoin 地址和 Rooch 地址，开发者可以根据需求选择使用。
+
+### 如何创建合约账户？
+
+在合约中调用 `moveos_std::account::create_account` 方法，会返回 `Object<Account>`。开发者可以把该对象存储到自己的数据结构中，通过该对象来操作合约账户。
+
+```move
+/// Create an Account Object with a generated address
+public fun create_account(): Object<Account> {
+  let new_address = tx_context::fresh_address();
+  create_account_object(new_address)
+}
+```