* Migrating primary build script to Python for maintainablity

* Created individual spec files per distro
* Created distro specific post install scripts (Debian/RHEL, Arch does not need one)

scripts/debian_postinst.sh

@@ -0,0 +1,26 @@
+#!/bin/sh
+set -e
+
+# Post-installation script for android-file-handler
+# - update desktop database if available
+# - update icon cache if available
+# - ensure binary is executable
+
+# Update desktop database if the utility exists
+if command -v update-desktop-database >/dev/null 2>&1; then
+  update-desktop-database /usr/share/applications || true
+fi
+
+# Update GTK icon cache for hicolor theme if utility exists
+if command -v gtk-update-icon-cache >/dev/null 2>&1; then
+  if [ -d /usr/share/icons/hicolor ]; then
+    gtk-update-icon-cache -t -f /usr/share/icons/hicolor || true
+  fi
+fi
+
+# Ensure installed binary is executable
+if [ -f /usr/local/bin/android-file-handler ]; then
+  chmod 0755 /usr/local/bin/android-file-handler || true
+fi
+
+exit 0