Three fixes for issue #184:
1. Menubar Swift code used UTC instead of local timezone in two places:
computeHistoryStats hardcoded TimeZone("UTC") and
effectiveTokensInLast7Days used ISO8601DateFormatter (UTC default).
Both now use .current to match CLI-produced local date keys.
2. Add --timezone flag and CODEBURN_TZ env var to override the system
timezone for all date grouping. Sets process.env.TZ before any Date
operations so all existing local-timezone code works unchanged.
3. Replace MS_PER_DAY arithmetic with Date constructor day-of-month
math for yesterday/backfill computations. Subtracting 86400000ms
from midnight skips a day on DST spring-forward (23-hour day).
Fixes#184
* Add Kiro provider and transparent auto-model naming
- Add Kiro IDE provider: parses .chat JSON files, estimates tokens,
normalizes dot-versioned model IDs for cost lookup
- Show "Cursor (auto)", "Copilot (auto)", "Kiro (auto)" in CLI
dashboard instead of pretending to know which model was used
- Route auto model names through BUILTIN_ALIASES for cost estimation
* Fix menubar tabs: add missing providers, show period-scoped costs
- Add Kiro, OMP to ProviderFilter enum so installed providers appear as tabs
- Merge Cursor + Cursor Agent into single Cursor tab
- Tab costs now reflect the selected period (7d/30d/month/all) instead
of always showing today
- Tab visibility still uses today's provider list so tabs don't
disappear when switching to periods with no data
* Add accent color picker to menubar with Apple system presets
- 9 presets using Apple's exact macOS dark-mode accent colors
(Ember, Blue, Purple, Pink, Red, Orange, Yellow, Green, Graphite)
- Color picker in header, persisted via UserDefaults
- "Burn" text stays fixed ember regardless of accent
- ThemeState is MainActor-isolated for thread safety
- Picker state lifted to AppStore so it survives .id() tree rebuild
- Accessibility labels on all color swatches
- Renamed brandAccentDark/brandEmberDeep/brandEmberGlow to match
their actual light/deep/glow semantics
* Fix review findings: case-sensitive cost lookup, Kiro timestamp guard, cache versioning
- Normalize provider dictionary keys to lowercase in tab cost lookup
so "Cursor Agent" (title-case from CLI) matches providerKeys
- Guard against missing/invalid/epoch startTime in Kiro parser to
prevent RangeError crash or 1970-01-01 ghost entries
- Bump DAILY_CACHE_VERSION to 4 so upgraded users get a clean
recompute with the new auto-model naming (cursor-auto vs default)
- Add version field to cursor-results.json cache to invalidate stale
entries that still use the old 'default' model name
Fixes crash when switching timeframes or providers by handling
duplicate dates in history data gracefully.
Adds LaunchAgent that posts a distributed notification every 15
seconds to keep prices fresh even after long idle periods.
