[csdev19]

What changed and why

A project module that exports a valid Standard Schema but leaves the event loop alive (a setInterval, a DB pool, a file watcher) was reported as {"code":"timeout"} after about 10 s. The child had already printed the correct verdict, but the parent only read stdout in child.on('close'), which never fires while the child stays alive.

Changes in packages/generate/src/load-module.ts:

• Incremental read. The parent parses stdout as it arrives. On the first complete verdict it resolves.
• Child exits itself. The child calls process.exit(0) in the stdout write callback, and the parent also sends SIGKILL. The promise resolves only after the child's exit, so no orphan outlives it.
• Framing. The verdict is now one line prefixed with a per-load token (@laqi-verdict:<uuid>:). This replaces out.lastIndexOf('{"ok":'), which a nested {"ok": inside a schema's examples could fool. JSON never holds a raw newline, so the line is unambiguous, and a module cannot print a matching line without reading this process's environment.
• The 10 s timeout for a module that hangs during import is unchanged. If a verdict already arrived when it fires, the verdict wins.

Tests were written first and committed before the fix (0483fe1). Two failed against the old loader (timer, nested {"ok":); the third (a module printing a verdict-shaped line) passed before and guards the new framing.

Not in this PR (all NIW2-310): minimal child env, stdout/stderr caps, fd 3 framing, approval changes. The new tests only observe behaviour through loadModuleSchema, so they should survive that rewrite.

How I verified it

• bun run test packages/generate/src/load-module.test.ts: 13/13 pass (the two new failing tests fail on the old loader).
• Full gate, run twice in a row, both green (1604 tests): oxlint, oxfmt --check, bun run build, bun run check-types, bun run check-types:scripts, bun run test.
• Caveat: bun run verify itself exits 1 in the worker's worktree because oxfmt --check . flags .claude/skills/.gc-skill-ownership.json, an untracked, git-ignored file Gas City generates there. CI never sees it. I ran the same steps with oxfmt --check . '!.claude/**'.
• Local Bun is 1.3.14, not the pinned 1.3.4; the lockfile installed with --frozen-lockfile.

How to test it yourself

1. Save this as /tmp/timer.mjs:

   setInterval(() => {}, 1000)
   export const S = { '~standard': { version: 1, vendor: 'x', jsonSchema: { output: () => ({ type: 'string' }) } } }

2. On main it takes about 10 s and returns code: 'timeout'. On this branch it returns { ok: true, ... } in well under a second, and ps shows no leftover node -e child.
3. Or just run bun run test packages/generate/src/load-module.test.ts.

Refs NIW2-332

Run: Gas City session ni-wisp-ycl2jo6, bead la-2fl, Mac mini

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