feat: Enhanced data structures and constants

- Add new constants for local workspace management
- Extend SheetData with write_count functionality
- Simplify vault data structures
- Update sheet and virtual file data handling

4 files changed, 24 insertions, 49 deletions

diff --git a/crates/vcs_data/src/data/sheet.rs b/crates/vcs_data/src/data/sheet.rs
index 69dc27d..09271d5 100644
--- a/crates/vcs_data/src/data/sheet.rs
+++ b/crates/vcs_data/src/data/sheet.rs
@@ -50,6 +50,9 @@ pub struct Sheet<'a> {
 
 #[derive(Default, Serialize, Deserialize, ConfigFile, Clone)]
 pub struct SheetData {
+    /// The write count of the current sheet
+    pub(crate) write_count: i32,
+
     /// The holder of the current sheet, who has full operation rights to the sheet mapping
     pub(crate) holder: Option<MemberId>,
 
@@ -89,6 +92,11 @@ impl<'a> Sheet<'a> {
         &self.data.mapping
     }
 
+    /// Get the write count of this sheet
+    pub fn write_count(&self) -> i32 {
+        self.data.write_count
+    }
+
     /// Forget the holder of this sheet
     pub fn forget_holder(&mut self) {
         self.data.holder = None;
@@ -263,7 +271,11 @@ impl<'a> Sheet<'a> {
     /// Why not use a reference?
     /// Because I don't want a second instance of the sheet to be kept in memory.
     /// If needed, please deserialize and reload it.
-    pub async fn persist(self) -> Result<(), std::io::Error> {
+    pub async fn persist(mut self) -> Result<(), std::io::Error> {
+        self.data.write_count += 1;
+        if self.data.write_count > i32::MAX {
+            self.data.write_count = 0;
+        }
         SheetData::write_to(&self.data, self.sheet_path()).await
     }
 
@@ -384,3 +396,10 @@ impl<'a> Sheet<'a> {
         self.data
     }
 }
+
+impl SheetData {
+    /// Get the write count of this sheet data
+    pub fn write_count(&self) -> i32 {
+        self.write_count
+    }
+}
diff --git a/crates/vcs_data/src/data/vault.rs b/crates/vcs_data/src/data/vault.rs
index efb4eec..fedebb3 100644
--- a/crates/vcs_data/src/data/vault.rs
+++ b/crates/vcs_data/src/data/vault.rs
@@ -6,6 +6,7 @@ use std::{
 };
 
 use cfg_file::config::ConfigFile;
+use vcs_docs::docs::READMES_VAULT_README;
 
 use crate::{
     constants::{
@@ -94,53 +95,7 @@ impl Vault {
             .await?;
 
         // Final, generate README.md
-        let readme_content = format!(
-            "\
-# JustEnoughVCS Server Setup
-
-This directory contains the server configuration and data for `JustEnoughVCS`.
-
-## User Authentication
-To allow users to connect to this server, place their public keys in the `{}` directory.
-Each public key file should be named `{{member_id}}.pem` (e.g., `juliet.pem`), and contain the user's public key in PEM format.
-
-**ECDSA:**
-```bash
-openssl genpkey -algorithm ed25519 -out your_name_private.pem
-openssl pkey -in your_name_private.pem -pubout -out your_name.pem
-```
-
-**RSA:**
-```bash
-openssl genpkey -algorithm RSA -out your_name_private.pem -pkeyopt rsa_keygen_bits:2048
-openssl pkey -in your_name_private.pem -pubout -out your_name.pem
-```
-
-**DSA:**
-```bash
-openssl genpkey -algorithm DSA -out your_name_private.pem -pkeyopt dsa_paramgen_bits:2048
-openssl pkey -in your_name_private.pem -pubout -out your_name.pem
-```
-
-Place only the `your_name.pem` file in the server's `./key/` directory, renamed to match the user's member ID.
-
-## File Storage
-All version-controlled files (Virtual File) are stored in the `{}` directory.
-
-## License
-This software is distributed under the MIT License. For complete license details, please see the main repository homepage.
-
-## Support
-Repository: `https://github.com/JustEnoughVCS/VersionControl`
-Please report any issues or questions on the GitHub issue tracker.
-
-## Thanks :)
-Thank you for using `JustEnoughVCS!`
-        ",
-            SERVER_PATH_MEMBER_PUB, SERVER_PATH_VF_ROOT
-        )
-        .trim()
-        .to_string();
+        let readme_content = READMES_VAULT_README;
         fs::write(vault_path.join(SERVER_FILE_README), readme_content)?;
 
         Ok(())
diff --git a/crates/vcs_data/src/data/vault/sheets.rs b/crates/vcs_data/src/data/vault/sheets.rs
index 1407350..ba021b5 100644
--- a/crates/vcs_data/src/data/vault/sheets.rs
+++ b/crates/vcs_data/src/data/vault/sheets.rs
@@ -133,6 +133,7 @@ impl Vault {
             holder: Some(holder.clone()),
             inputs: Vec::new(),
             mapping: HashMap::new(),
+            write_count: 0,
         };
         SheetData::write_to(&sheet_data, sheet_file_path).await?;
 
diff --git a/crates/vcs_data/src/data/vault/virtual_file.rs b/crates/vcs_data/src/data/vault/virtual_file.rs
index fe83594..221766f 100644
--- a/crates/vcs_data/src/data/vault/virtual_file.rs
+++ b/crates/vcs_data/src/data/vault/virtual_file.rs
@@ -51,7 +51,7 @@ pub struct VirtualFileMeta {
     histories: Vec<VirtualFileVersion>,
 }
 
-#[derive(Default, Clone, Serialize, Deserialize)]
+#[derive(Debug, Default, Clone, Serialize, Deserialize)]
 pub struct VirtualFileVersionDescription {
     /// The member who created this version
     pub creator: MemberId,