chore: persist activity feed history and improve build versioning

server/build.rs

@@ -1,25 +1,29 @@
 use std::process::Command;
 
 fn main() {
-    let git_hash = Command::new("git")
+    let mut git_hash = Command::new("git")
         .args(["rev-parse", "--short", "HEAD"])
         .output()
         .ok()
         .and_then(|out| String::from_utf8(out.stdout).ok())
         .unwrap_or_else(|| "unknown".to_string());
+    
+    git_hash = git_hash.trim().to_string();
 
-    let git_date = Command::new("git")
-        .args(["log", "-1", "--format=%cd", "--date=format:%y.%m.%d.%H%M%S"])
+    let is_dirty = Command::new("git")
+        .args(["status", "--porcelain"])
         .output()
         .ok()
-        .and_then(|out| String::from_utf8(out.stdout).ok())
-        .unwrap_or_else(|| "unknown".to_string());
+        .map(|out| !out.stdout.is_empty())
+        .unwrap_or(false);
 
-    let version = format!(
-        "{} ({})",
-        git_date.trim(),
-        git_hash.trim()
-    );
+    if is_dirty {
+        git_hash.push_str("-dirty");
+    }
+
+    let build_date = chrono::Local::now().format("%y.%m.%d.%H%M%S").to_string();
+
+    let version = format!("{} ({})", build_date, git_hash);
     println!("cargo:rustc-env=APP_VERSION={}", version);
 
     if std::env::var("CARGO_CFG_TARGET_OS").unwrap_or_default() == "windows" {