feat: add universal skill sync and runtime linking

install.sh

@@ -17,4 +17,14 @@ chmod +x "$TARGET_DIR"/bin/*
 chmod +x "$TARGET_DIR"/install.sh
 
 echo "[mosaic-install] Installed framework to $TARGET_DIR"
+
+echo "[mosaic-install] Syncing universal skills"
+if [[ "${MOSAIC_SKIP_SKILLS_SYNC:-0}" == "1" ]]; then
+  echo "[mosaic-install] Skipping skills sync (MOSAIC_SKIP_SKILLS_SYNC=1)"
+else
+  if ! "$TARGET_DIR/bin/mosaic-sync-skills"; then
+    echo "[mosaic-install] WARNING: skills sync failed (framework install still complete)" >&2
+  fi
+fi
+
 echo "[mosaic-install] Add to PATH: export PATH=\"$TARGET_DIR/bin:$PATH\""