Support launch configurations

[chungxon]

Problem

This plugin currently lacks a first-class launch profile feature (similar to VSCode launch configurations) for switching quickly between dev/staging/prod runs

Could you pls take a look at this idea to support for predefined Flutter run/debug profiles (workspace-level), including per-profile target (-t), flavor (--flavor), and repeated --dart-define values, so users can select a profile and launch without manually retyping arguments each time

Expected

Support a workflow similar to VSCode's .vscode/launch.json.

Other related issues:

• feature missing: flutter flavor selection/run args config #4
• [lumide_flutter] [FEAT] Allow custom launch configurations with args lumide#15

[chungxon]

Reopening this issue as a new feature ✨ New launch options is not as my expected