fix(launcher): load macOS login shell PATH for GUI launches

src/main/runtime/login-shell-path.test.ts

@@ -0,0 +1,43 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { applyLoginShellPath, mergePathValues, readLoginShellPath } from './login-shell-path';
+
+const wrap = (value: string) =>
+  `motd noise\n__SUBMINER_LOGIN_PATH__${value}\n__SUBMINER_LOGIN_PATH__`;
+
+test('readLoginShellPath extracts PATH between markers, ignoring rc-file output', async () => {
+  let invoked: { shell: string; args: string[] } | null = null;
+  const value = await readLoginShellPath({
+    env: { SHELL: '/bin/zsh' },
+    runShell: async (shell, args) => {
+      invoked = { shell, args };
+      return wrap('/Users/me/.local/bin:/usr/bin');
+    },
+  });
+  assert.equal(value, '/Users/me/.local/bin:/usr/bin');
+  assert.equal(invoked!.shell, '/bin/zsh');
+  assert.equal(invoked!.args[0], '-ilc');
+});
+
+test('readLoginShellPath returns null when markers are missing', async () => {
+  const value = await readLoginShellPath({ env: {}, shell: '/bin/sh', runShell: async () => '' });
+  assert.equal(value, null);
+});
+
+test('mergePathValues puts login entries first and keeps process-only entries', () => {
+  assert.equal(
+    mergePathValues('/Users/me/.local/bin:/usr/bin:/bin', '/usr/bin:/bin:/usr/sbin:/sbin'),
+    '/Users/me/.local/bin:/usr/bin:/bin:/usr/sbin:/sbin',
+  );
+});
+
+test('applyLoginShellPath updates env.PATH so launcher detection sees shell dirs', async () => {
+  const env: NodeJS.ProcessEnv = { PATH: '/usr/bin:/bin' };
+  const applied = await applyLoginShellPath({
+    env,
+    shell: '/bin/zsh',
+    runShell: async () => wrap('/Users/me/.local/bin:/usr/bin'),
+  });
+  assert.equal(applied, true);
+  assert.equal(env.PATH, '/Users/me/.local/bin:/usr/bin:/bin');
+});