Update TypeScript to 5.6.3 and add Prettier formatting rules

AGENTS.md

@@ -8,6 +8,15 @@
 - Never downgrade dependencies.
 - Newly added version/features for the Extension Changelog go at the top.
 - As a general rule: some rules, attributes, lists should be in alphabetical order.
+- Format everything (except HTML) with Prettier.
+
+## Markdown Code Style
+
+- Format with Prettier.
+
+## TypeScript Code Style
+
+- Format with Prettier.
 
 ## Communication (MANDATORY)
 
@@ -28,4 +37,4 @@
 
 - No emojis in code or documentation.
 - Only implement what's requested.
-- Preserve existing structures - Don't remove unrelated code
+- Preserve existing structures - Don't remove unrelated code.

htmlhint-server/src/server.ts

@@ -1074,8 +1074,7 @@ function createLinkRelCanonicalRequireFix(
   let insertPosition: number;
   const shouldSelfClose = isRuleEnabledForDocument(document, "tag-self-close");
   const canonicalSnippet =
-    '\n    <link rel="canonical" href=""' +
-    (shouldSelfClose ? " />" : ">");
+    '\n    <link rel="canonical" href=""' + (shouldSelfClose ? " />" : ">");
 
   if (metaDescriptionMatch) {
     // Insert after description meta tag

htmlhint/package.json

@@ -94,7 +94,7 @@
     "@types/node": "^22.19.1",
     "@types/vscode": "^1.101.0",
     "@vscode/test-electron": "^2.5.2",
-    "typescript": "5.5.4"
+    "typescript": "5.6.3"
   },
   "dependencies": {
     "htmlhint": "1.8.0",

package.json

@@ -45,7 +45,7 @@
     "mocha": "^11.7.5",
     "prettier": "3.7.1",
     "ts-node": "^10.9.2",
-    "typescript": "5.5.4"
+    "typescript": "5.6.3"
   },
   "engines": {
     "node": ">= 22"