chore: rename example files from generic names to kebab-case http variants in Makefile and README

Makefile

@@ -26,9 +26,9 @@ TESTS = $(TEST_DIR)/feature_test.rc \
         $(TEST_DIR)/string_test.rc \
         $(TEST_DIR)/string_manip_test.rc
 
-EXAMPLES = $(EXAMPLE_DIR)/test.rc \
-           $(EXAMPLE_DIR)/demo.rc \
-           $(EXAMPLE_DIR)/a.rc
+EXAMPLES = $(EXAMPLE_DIR)/http_simple.rc \
+           $(EXAMPLE_DIR)/http_persistent.rc \
+           $(EXAMPLE_DIR)/http_multi.rc
 
 .PHONY: all clean test run-tests run-examples help dirs
 
@@ -81,14 +81,14 @@ run-string-test: $(TARGET)
 run-string-manip: $(TARGET)
 	$(TARGET) $(TEST_DIR)/string_manip_test.rc
 
-run-example-test: $(TARGET)
-	$(TARGET) $(EXAMPLE_DIR)/test.rc
+run-http-simple: $(TARGET)
+	$(TARGET) $(EXAMPLE_DIR)/http_simple.rc
 
-run-example-demo: $(TARGET)
-	$(TARGET) $(EXAMPLE_DIR)/demo.rc
+run-http-persistent: $(TARGET)
+	$(TARGET) $(EXAMPLE_DIR)/http_persistent.rc
 
-run-example-a: $(TARGET)
-	$(TARGET) $(EXAMPLE_DIR)/a.rc
+run-http-multi: $(TARGET)
+	$(TARGET) $(EXAMPLE_DIR)/http_multi.rc
 
 help:
 	@echo "RC - Retoor's C Interpreter"
@@ -106,9 +106,9 @@ help:
 	@echo "  make run-string-manip - Run string_manip_test.rc (string manipulation & slicing)"
 	@echo ""
 	@echo "Examples:"
-	@echo "  make run-example-test - Run test.rc (HTTP server)"
-	@echo "  make run-example-demo - Run demo.rc (HTTP server with counter)"
-	@echo "  make run-example-a    - Run a.rc (HTTP server, 100 connections)"
+	@echo "  make run-http-simple     - Run http_simple.rc (single connection HTTP server)"
+	@echo "  make run-http-persistent - Run http_persistent.rc (persistent HTTP server)"
+	@echo "  make run-http-multi      - Run http_multi.rc (HTTP server, 100 connections)"
 	@echo ""
 	@echo "Directory Structure:"
 	@echo "  src/       - Source code files"