Merge pull request #3139 from zeroclaw-labs/simianastronaut7/build-fix

fix(build): ensure web/dist directory exists at compile time

build.rs

@@ -0,0 +1,6 @@
+fn main() {
+    let dir = std::path::Path::new("web/dist");
+    if !dir.exists() {
+        std::fs::create_dir_all(dir).expect("failed to create web/dist/");
+    }
+}