Build the current workspace snapshot on native CI runners

This branch snapshots the in-progress desktop workspace so GitHub-hosted Windows and Linux runners can package the same source tree that already passes local verification on macOS.

Constraint: Local Apple Silicon Docker/Wine packaging crashes before Windows artifacts are produced
Rejected: Publish from the incomplete base repo state | remote typecheck failed because current source additions were missing
Confidence: medium
Scope-risk: broad
Directive: Treat this branch as a build snapshot only; do not merge it without reviewing the unrelated workspace changes it contains
Tested: local typecheck, lint, workspace typecheck, unit tests, integration tests, e2e smoke, macOS signed release upload
Not-tested: Native Windows/Linux artifacts before this CI run

tests/e2e/launch.ts

@@ -1,12 +1,46 @@
 import { createRequire } from "node:module";
-import { resolve } from "node:path";
+import { dirname, resolve } from "node:path";
+import { fileURLToPath } from "node:url";
 
 const require = createRequire(import.meta.url);
+const repoRoot = resolve(dirname(fileURLToPath(import.meta.url)), "..", "..");
+
+const EXPERIMENTAL_WARNING_FLAG = "--disable-warning=ExperimentalWarning";
 
 export function getElectronExecutablePath() {
   return require("electron");
 }
 
 export function getMainEntryPath() {
-  return resolve(process.cwd(), "out/main/index.js");
+  return resolve(repoRoot, "out/main/index.js");
+}
+
+export function createElectronLaunchEnv(
+  overrides: Record<string, string>,
+) : Record<string, string> {
+  const env: Record<string, string> = {};
+
+  for (const [key, value] of Object.entries(process.env)) {
+    if (typeof value === "string") {
+      env[key] = value;
+    }
+  }
+
+  Object.assign(env, overrides);
+
+  if (env.FORCE_COLOR && env.NO_COLOR) {
+    delete env.NO_COLOR;
+  }
+
+  const existingNodeOptions = env.NODE_OPTIONS?.trim();
+  if (!existingNodeOptions) {
+    env.NODE_OPTIONS = EXPERIMENTAL_WARNING_FLAG;
+    return env;
+  }
+
+  if (!existingNodeOptions.includes(EXPERIMENTAL_WARNING_FLAG)) {
+    env.NODE_OPTIONS = `${existingNodeOptions} ${EXPERIMENTAL_WARNING_FLAG}`;
+  }
+
+  return env;
 }