fix(release): route tauri build through turborepo task graph

Adds a `tauri` task to turbo.json with dependsOn ["^build"] so that
desktop#tauri automatically triggers web#build first via the workspace
dependency graph. The tauriScript routes tauri-action through turbo
rather than invoking tauri directly, eliminating the need for an
explicit build step.

turbo.json

@@ -22,6 +22,10 @@
 		"dev": {
 			"cache": false,
 			"persistent": true
+		},
+		"tauri": {
+			"dependsOn": ["^build"],
+			"cache": false
 		}
 	}
 }