* fix: fix and improve test isolation and collision with environment
* docs: remove unnecessary comment
* test(env-isolation): clear CODEBURN_FORCE_MACOS_MAJOR and pin TZ
Two env vars read in src/ were not isolated: CODEBURN_FORCE_MACOS_MAJOR
(now cleared so it cannot leak between tests) and TZ (now pinned to UTC,
since clearing it falls back to the OS zone and would shift date buckets
versus a clean CI runner).
---------
Co-authored-by: AgentSeal <hello@agentseal.org>
* feat(codex): compute Codex credit usage (#408, #495)
Codex/ChatGPT subscription users consume credits, a unit separate from API
dollars: usage is billed as credits-per-million-tokens at per-model rates that
differ from the API USD pricing CodeBurn uses for cost. So the reported dollar
cost does not match what credits actually consume.
Add a credit engine sourced from the official Codex credit rates
(developers.openai.com/codex/pricing): GPT-5.5 125/12.5/750, GPT-5.4
62.5/6.25/375, GPT-5.4 mini 18.75/1.875/113 credits per 1M input/cached/output
tokens. Surface per-model credit usage in `codeburn models` JSON output
(credits field; null for non-Codex or unknown models). models-report already
folds reasoning into output and keeps non-cached input + cached-read separately,
which is exactly what the credit rates expect, so the figure is exact.
Engine + computation are unit-tested. UI display surfaces (the models table,
the TUI dashboard, the menubar "credits" view) are intentionally left for a
follow-up so the display choice can be decided.
* feat(menubar): opt-in Codex credits display metric (#408, #495)
Surface Codex credit usage in the menubar as a selectable metric, without
changing the default. Cost ($) stays the default in both the menubar and the
CLI; credits only appear when explicitly chosen.
- TS: buildMenubarPayloadForRange computes the period's Codex credits (via the
tested aggregateModels, so reasoning/cached are handled) and exposes
current.codexCredits in the menubar JSON.
- Swift: new DisplayMetric.credits, a "Credits (Codex)" option in the metric
picker, decodes codexCredits, and renders it in the menu-bar title. Default
metric remains .cost.
buildMenubarPayloadForRange('today') parsed the developer's real on-disk
session data under a fixed 5s timeout, so on a heavy-usage day the test
timed out locally (it stayed green on CI, which has no real data). Point
HOME and the config dirs at an empty temp dir so the payload is built from
an empty dataset: deterministic and fast (~0.3s) while still asserting the
payload shape and the optimize:false short-circuit.
