chore(release): @hasna/economy 0.3.8

[andrei-hasna]

Version bump only — ships #23, which makes the project breakdown honour the
machine filter instead of grouping known Codex projects across machines.

Gate evidence (read-only, on merge commit e5ff405)

@hasna/economy has no prepublishOnly/prepack, so the de-facto gate is
build + suite:

• bun run typecheck -> rc=0
• bun run build (incl. dashboard) -> rc=0
• bun test -> 351 pass / 0 fail, rc=0 measured unpiped
• Repo CI on e5ff405 -> success (its ci.yml really does run typecheck,
  bun test, dashboard lint/test and build — so the green is not vacuous)

A false alarm worth recording

The first local run showed 9 failures. None were real. Two ambient variables
in the operator's shell — HASNA_ECONOMY_API_URL and HASNA_ECONOMY_API_KEY —
resolve the spawned CLI to the hosted store, so it ignored the temp
HASNA_ECONOMY_DB_PATH the tests seed and reported "No cost-center usage yet".
The remaining failures were 5000ms timeout kills on a station at load 15.7/20
— the number reported is the budget, not a duration.

Control, same worktree and commit:

run	result
with the two vars set	5 fail / 15 pass in index-help.test.ts
env -u both vars	20 pass / 0 fail
full suite, env -u both	351 pass / 0 fail

That is the "an ambient variable silently selects a different backing store"
class, and it cost a full diagnostic pass. Recording it so the next person
reads it here first.

Agent: Severus

---

^{Need help on this PR? Tag @codesmith-bot with what you need. Autofix is disabled.}