Refactor error handling and variable declarations in browser and logging modules

- Simplified variable initialization in `browser.go` for readability.
- Updated error handling in `request_logger.go` with better resource cleanup using deferred anonymous functions.

Refactor API handlers to use `GetContextWithCancel` for streamlined context creation and response handling

- Replaced redundant `context.WithCancel` and `context.WithValue` logic with the new `GetContextWithCancel` utility in all handlers.
- Centralized API response storage in the given context during cancellation.
- Updated associated cancellation calls for consistency and improved resource management.

- Replaced `apiResponseData` with `AddAPIResponseData` for centralized response recording.
- Simplified cancellation logic by switching to a boolean-based `cliCancel` method.
- Removed unused `apiResponseData` slices across handlers to reduce memory usage.
- Updated `handlers.go` to support unified response data storage per request context.

internal/browser/browser.go

@@ -105,7 +105,7 @@ func GetPlatformInfo() map[string]interface{} {
 		info["default_command"] = "rundll32"
 	case "linux":
 		browsers := []string{"xdg-open", "x-www-browser", "www-browser", "firefox", "chromium", "google-chrome"}
-		availableBrowsers := []string{}
+		var availableBrowsers []string
 		for _, browser := range browsers {
 			if _, err := exec.LookPath(browser); err == nil {
 				availableBrowsers = append(availableBrowsers, browser)