Added features

Added: 
Project Overview TUI 
Build Cache / Dirty Detection
Post-Build Hooks
gbuild status

include/hooks.h

@@ -0,0 +1,18 @@
+#ifndef HOOKS_H
+#define HOOKS_H
+
+#include "logger.h"
+
+/*
+ * Run cmd in a shell with working directory set to working_dir.
+ * stdout and stderr from the hook are streamed through log.
+ *
+ * Returns the hook's exit status (0 = success, >0 = hook failure),
+ * or -1 if the shell could not be launched.
+ *
+ * The caller is responsible for distinguishing hook failure from build
+ * failure — this function never touches build state.
+ */
+int hook_run(const char *cmd, const char *working_dir, Logger *log);
+
+#endif /* HOOKS_H */