refactor(self-mgmt): centralize manual file list for install/uninstall

Makefile

@@ -2,6 +2,9 @@ ROOT_DIR := $(shell pwd)
 COMP_DIR := $(HOME)/.local/bin/completions
 PYTHON ?= python3
 
+# 手动安装的文件清单（与 bin/commands/self_mgmt.py 中的 _MANUAL_FILES 保持同步）
+MANUAL_FILES := $(COMP_DIR)/_mytoolkit $(COMP_DIR)/mytoolkit.bash
+
 .PHONY: help install uninstall
 
 help:
@@ -27,5 +30,10 @@ install:
 
 uninstall:
 	$(PYTHON) -m pip uninstall mytoolkit -y
-	rm -f "$(COMP_DIR)/_mytoolkit" "$(COMP_DIR)/mytoolkit.bash"
-	@echo "Uninstalled mytoolkit and removed completions"
+	@for f in $(MANUAL_FILES); do \
+		if [ -e "$$f" ] || [ -L "$$f" ]; then \
+			rm -f "$$f"; \
+			echo "Removed $$f"; \
+		fi; \
+	done
+	@echo "Uninstalled mytoolkit and cleaned up manual files"