chore: improve CI stability and add edge install support

install.sh

@@ -18,7 +18,7 @@ start_line_spinner() {
         echo -e "${BLUE}|${NC} $msg"
         return
     }
-    local chars="${MO_SPINNER_CHARS:-|/-\\}"
+    local chars="|/-\\"
     [[ -z "$chars" ]] && chars='|/-\\'
     local i=0
     (while true; do
@@ -436,6 +436,12 @@ download_binary() {
         return 0
     fi
 
+    if [[ "${MOLE_EDGE_INSTALL:-}" == "true" ]]; then
+        if build_binary_from_source "$binary_name" "$target_path"; then
+            return 0
+        fi
+    fi
+
     local version
     version=$(get_source_version)
     if [[ -z "$version" ]]; then