feat: Refactor DOT graph sanitization and enhance testing

.vscode/launch.json

@@ -4,7 +4,47 @@
     // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
     "version": "0.2.0",
     "configurations": [
-
-
+        {
+            "name": "Extension",
+            "type": "extensionHost",
+            "request": "launch",
+            "args": [
+                "--extensionDevelopmentPath=${workspaceFolder}"
+            ],
+            "outFiles": [
+                "${workspaceFolder}/out/**/*.js"
+            ],
+            "preLaunchTask": "npm: compile"
+        },
+        {
+            "name": "Extension Tests",
+            "type": "extensionHost",
+            "request": "launch",
+            "args": [
+                "--disable-gpu",
+                "--extensionDevelopmentPath=${workspaceFolder}",
+                "--extensionTestsPath=${workspaceFolder}/out/test/suite/index"
+            ],
+            "outFiles": [
+                "${workspaceFolder}/out/**/*.js"
+            ],
+            "preLaunchTask": "npm: test-compile"
+        },
+        {
+            "name": "Debug Current Test File",
+            "type": "extensionHost",
+            "request": "launch",
+            "args": [
+                "--disable-gpu",
+                "--extensionDevelopmentPath=${workspaceFolder}",
+                "--extensionTestsPath=${workspaceFolder}/out/test/suite/index",
+                "--grep",
+                "${fileBasenameNoExtension}"
+            ],
+            "outFiles": [
+                "${workspaceFolder}/out/**/*.js"
+            ],
+            "preLaunchTask": "npm: test-compile"
+        }
     ]
 }

.vscode/tasks.json

@@ -0,0 +1,26 @@
+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "type": "npm",
+            "script": "watch",
+            "problemMatcher": "$tsc-watch",
+            "isBackground": true,
+            "presentation": {
+                "reveal": "never"
+            },
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            }
+        },
+        {
+            "type": "npm",
+            "script": "test-compile",
+            "group": "build",
+            "problemMatcher": "$tsc",
+            "label": "npm: test-compile",
+            "detail": "tsc -p ."
+        }
+    ]
+}

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+## [0.6.8] - 2025-04-18
+
+- **Updated** Render preview and add more comprehensive error handling
+- **Updated** Sanitize the content of the preview graph
+
 ## [0.6.7] - 2025-04-15
 
 - **Fixed** Render preview sometimes failed to load when opening a .dot file with specials characters in content