add endpoint for general stats

load build data to graph
redesign top info tiles
place add button on header
folder restructure

backend/src/utils/dir_size.rs

@@ -0,0 +1,17 @@
+use std::path::PathBuf;
+use std::{fs, io};
+
+pub fn dir_size(path: impl Into<PathBuf>) -> io::Result<u64> {
+    fn dir_size(mut dir: fs::ReadDir) -> io::Result<u64> {
+        dir.try_fold(0, |acc, file| {
+            let file = file?;
+            let size = match file.metadata()? {
+                data if data.is_dir() => dir_size(fs::read_dir(file.path())?)?,
+                data => data.len(),
+            };
+            Ok(acc + size)
+        })
+    }
+
+    dir_size(fs::read_dir(path.into())?)
+}

backend/src/utils/mod.rs

@@ -0,0 +1 @@
+pub mod dir_size;