chore: add VS Code launch configurations for production and staging e…

…nvironments

- Added "Flutter: Run production" configuration with production flavor and env.json settings
- Added "Flutter: Run staging" configuration with staging flavor and env.staging.json settings
- Ensured both configurations run in release mode

.vscode/launch.json

@@ -1,32 +1,27 @@
 {
-    // Use IntelliSense to learn about possible attributes.
-    // Hover to view descriptions of existing attributes.
-    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
     "version": "0.2.0",
     "configurations": [
-        {
-            "name": "run app staging",
-            "request": "launch",
-            "type": "dart",
-            "args": [
-                "--flavor",
-                "staging" //development or staging or production
-            ]
-        },
-        {
-            "name": "example (profile mode)",
-            "request": "launch",
-            "type": "dart",
-            "flutterMode": "profile"
-        },
-        {
-            "name": "run app production",
-            "request": "launch",
-            "type": "dart",
-            "args": [
-                "--flavor",
-                "production" //development or staging or production
-            ]
-        },
+      {
+        "name": "Flutter: Run production",
+        "request": "launch",
+        "type": "dart",
+        "program": "${workspaceFolder}/lib/main.dart",
+        "args": [
+          "--flavor", "Production",
+          "--dart-define-from-file=env.json",
+          "--release"
+        ]
+      },
+      {
+        "name": "Flutter: Run staging",
+        "request": "launch",
+        "type": "dart",
+        "program": "${workspaceFolder}/lib/main.dart",
+        "args": [
+          "--flavor", "Staging",
+          "--dart-define-from-file=env.staging.json",
+          "--release"
+        ]
+      }
     ]
-}
+  }