Initial commit: OCI image mounting via containers-storage

slocker-lite validates an OCI Image Layout tar, imports its layers into
containers-storage's layer store in order, and mounts the assembled image
using fuse-overlayfs, printing the resulting merged path.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,13 @@
+# Meson build directory
+/buildDir/
+
+# Meson subprojects: keep the .wrap files, ignore fetched sources / download cache
+/subprojects/*/
+/subprojects/packagecache/
+/subprojects/.wraplock
+
+# JetBrains IDE
+.idea/
+
+# Claude Code session resume note (local-only, not part of the project)
+/RESUME