refactor(core): migrated entire codebase to TypeScript with modular architecture

Converted all JavaScript source code to TypeScript with strict type checking.
Decomposed monolithic commit-generator.js into separate modules:
- cli/detection.ts - CLI path finding and auto-save logic
- cli/execution.ts - CLI and API execution handlers
- generators/commit.ts - main generation orchestration
- prompts/generation.ts - prompt templates for generation and editing
- utils/git.ts - git diff operations
- types/index.ts - shared type definitions

Added TypeScript configuration and build tooling support.

Author: uaoa

package-lock.json

@@ -23,7 +23,7 @@
 	"activationEvents": [
 		"onStartupFinished"
 	],
-	"main": "./src/extension.js",
+	"main": "./dist/extension.js",
 	"contributes": {
 		"commands": [
 			{
@@ -118,6 +118,8 @@
 		"@types/node": "^18.0.0",
 		"@types/vscode": "^1.75.0",
 		"eslint": "^8.50.0",
+		"ts-loader": "^9.5.1",
+		"typescript": "^5.3.0",
 		"webpack": "^5.88.0",
 		"webpack-cli": "^5.1.4"
 	},