init: GitHub/Gitea contribution heatmap apps

Co-authored-by: Cursor <cursoragent@cursor.com>

github/src-tauri/src/main.rs

@@ -0,0 +1,5 @@
+#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
+
+fn main() {
+    github_heatmap_lib::run()
+}