Remove Copilot SDK and use Copilot Chat for completions

extensions/github-authentication/src/config.ts

@@ -15,9 +15,5 @@ export interface IConfig {
 // not really a secret... so we allow the client secret in code. It is brought in before we publish VS Code. Reference:
 // https://docs.github.com/en/apps/oauth-apps/building-oauth-apps/best-practices-for-creating-an-oauth-app#client-secrets
 export const Config: IConfig = {
-	// --- Start Positron ---
-	// Replace the "GitHub for VS Code" client ID with Positron's client ID
-	// gitHubClientId: '01ab8ac9400c4e429b23'
-	gitHubClientId: 'Ov23lilj1d6nFMvW4QfI'
-	// --- End Positron ---
+	gitHubClientId: '01ab8ac9400c4e429b23'
 };

extensions/positron-assistant/package.json

@@ -934,9 +934,7 @@
   "scripts": {
     "compile": "gulp compile-extension:positron-assistant",
     "vscode:prepublish": "npm run compile",
-    "pretest": "npm run compile",
-    "install-copilot-language-server": "ts-node scripts/install-copilot-language-server.ts",
-    "postinstall": "ts-node scripts/post-install.ts"
+    "pretest": "npm run compile"
   },
   "devDependencies": {
     "@ai-sdk/amazon-bedrock": "2.2.12",
@@ -966,9 +964,7 @@
   },
   "dependencies": {
     "@anthropic-ai/sdk": "^0.57.0",
-    "@github/copilot-language-server": "^1.367.0",
     "@vscode/prompt-tsx": "^0.4.0-alpha.5",
-    "vscode-languageclient": "^9.0.1",
     "yaml": "^2.8.1"
   },
   "extensionDependencies": [