Remove generated artifacts and machine-specific paths

.gitignore

@@ -1,8 +1,29 @@
 # Large generated knowledge-base artifacts are distributed separately.
-/机械制图手册_前200页_mineru/
-/机械设计禁忌1000例_知识库提取/
+/*_mineru/
+/*_知识库提取/
+
+# Local machine configuration and secrets.
+.env
+.env.*
+!.env.example
+/project_paths.json
+**/appsettings.Local.json
+**/appsettings.*.local.json
+
+# Generated data, logs, build output, and dependency directories.
+/runtime/
+**/bin/
+**/obj/
+**/dist/
+web/node_modules/
+*.log
 
 # Python-generated cache files.
 __pycache__/
 *.py[cod]
 
+# IDE and OS metadata.
+.vs/
+.idea/
+*.user
+*.suo