chore(desktop): build config — keep tsc emit out of src, gitignore artifacts

.gitignore

@@ -68,6 +68,17 @@ environments/benchmarks/evals/
 hermes_cli/web_dist/
 apps/desktop/build/
 apps/desktop/dist/
+
+# tsc-emitted artifacts (a stray `tsc -b` compiles into src/, and vite then
+# resolves the stale .js OVER the .tsx — never track these)
+apps/desktop/src/**/*.js
+apps/desktop/src/**/*.js.map
+apps/desktop/src/**/*.d.ts
+!apps/desktop/src/global.d.ts
+!apps/desktop/src/vite-env.d.ts
+apps/shared/src/**/*.js
+apps/shared/src/**/*.js.map
+apps/shared/src/**/*.d.ts
 apps/desktop/release/
 *.tsbuildinfo