chore: create extension scaffolding

package-lock.json

@@ -1,13 +1,16 @@
 {
 	"name": "task-master-ai",
-	"version": "0.19.0",
+	"version": "0.20.0",
 	"lockfileVersion": 3,
 	"requires": true,
 	"packages": {
 		"": {
 			"name": "task-master-ai",
-			"version": "0.19.0",
+			"version": "0.20.0",
 			"license": "MIT WITH Commons-Clause",
+			"workspaces": [
+				"apps/*"
+			],
 			"dependencies": {
 				"@ai-sdk/amazon-bedrock": "^2.2.9",
 				"@ai-sdk/anthropic": "^1.2.10",
@@ -80,6 +83,13 @@
 				"ai-sdk-provider-gemini-cli": "^0.0.4"
 			}
 		},
+		"apps/extension": {
+			"version": "0.20.0",
+			"license": "ISC",
+			"devDependencies": {
+				"typescript": "^5.8.3"
+			}
+		},
 		"node_modules/@ai-sdk/amazon-bedrock": {
 			"version": "2.2.10",
 			"resolved": "https://registry.npmjs.org/@ai-sdk/amazon-bedrock/-/amazon-bedrock-2.2.10.tgz",
@@ -7340,6 +7350,10 @@
 			"dev": true,
 			"license": "MIT"
 		},
+		"node_modules/extension": {
+			"resolved": "apps/extension",
+			"link": true
+		},
 		"node_modules/external-editor": {
 			"version": "3.1.0",
 			"resolved": "https://registry.npmjs.org/external-editor/-/external-editor-3.1.0.tgz",
@@ -13185,6 +13199,20 @@
 				"node": ">= 0.6"
 			}
 		},
+		"node_modules/typescript": {
+			"version": "5.8.3",
+			"resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz",
+			"integrity": "sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==",
+			"dev": true,
+			"license": "Apache-2.0",
+			"bin": {
+				"tsc": "bin/tsc",
+				"tsserver": "bin/tsserver"
+			},
+			"engines": {
+				"node": ">=14.17"
+			}
+		},
 		"node_modules/uint8array-extras": {
 			"version": "1.4.0",
 			"resolved": "https://registry.npmjs.org/uint8array-extras/-/uint8array-extras-1.4.0.tgz",