Fixed lb_update generation

Makefile

@@ -111,13 +111,23 @@ lb_update_copy_files:
 	@mkdir -p $(DIST_DIR)
 	@mkdir -p $(TEMP_DIR)
 
-	@echo "[INFO] Copying modified or added files from 'src/'..."
+	@echo "[INFO] Copying modified or added files from 'src/' that are in LB_FILES..."
 	@for file in $$(git diff --name-status $(LAST_TAG)..HEAD | grep -E '^[AM]' | cut -f2 | grep '^src/'); do \
 		rel_path=$$(echo "$$file" | sed 's|^src/||'); \
-		if [ -f "$$file" ]; then \
+		# Check if the file belongs to one of the allowed directories LB_FILES \
+		allowed=0; \
+		for lb_item in $(LB_FILES); do \
+			if echo "$$rel_path" | grep -q "^$$lb_item/"; then \
+				allowed=1; \
+				break; \
+			fi; \
+		done; \
+		if [ "$$allowed" -eq 1 ] && [ -f "$$file" ]; then \
 			echo "[COPY] $$file -> $(TEMP_DIR)/$$rel_path"; \
 			mkdir -p "$(TEMP_DIR)/$$(dirname $$rel_path)"; \
 			cp "$$file" "$(TEMP_DIR)/$$rel_path"; \
+		else \
+			echo "[SKIP] $$file (not in LB_FILES)"; \
 		fi \
 	done