Stats: hide Claude/Codex breakdown unless service filter is All

.gitignore

@@ -6,3 +6,5 @@ dist/
 AgentMeter.app/
 # Original drop-in icon artwork; the committed source lives in Resources/AppIcon.png
 AgentMeter_icon*.jpg
+
+.claude/

CLAUDE.md

@@ -0,0 +1,57 @@
+# CLAUDE.md
+
+AgentMeter — a macOS 14+ menu-bar app (Swift / AppKit + SwiftUI) that reads
+local Claude Code, Claude (status), and Codex usage logs and shows a live
+usage/cost gauge.
+
+## Build & test
+
+```bash
+swift build              # build all targets
+swift test               # run AgentMeterCoreTests
+./Scripts/bundle.sh      # produce the .app bundle
+./Scripts/release.sh     # build + bundle a release
+```
+
+Two CI workflows: `gitleaks` (secret scan) and `offline-check`
+(`Scripts/check-offline.sh` — the app must work with no network by default).
+
+## Layout
+
+`Sources/AgentMeterCore` — **core layer**, no AppKit/SwiftUI (high fan-in,
+~1 outbound). Pure parsing/pricing/formatting; the only thing tested.
+`Sources/AgentMeter` — the menu-bar app (UI, networking, settings).
+`Tests/AgentMeterCoreTests` — covers Core only.
+`Scripts/` — bundle/release/icns/statusline/offline-check shell + swift.
+
+## Core (`AgentMeterCore`) — the pieces that matter
+
+- `CodexReader`, `ClaudeCodeReader`, `ClaudeStatusReader` — parse each
+  agent's local logs. `CodexReader.read` is the hottest symbol (fan-in 18);
+  `read`/`history` are the reader entry points.
+- `UsageReader` / `UsageModels` / `UsageHistory` — the usage data model.
+- `Pricing.costEstimate` — token → cost (fan-in 8). `ModelIdentity`,
+  `ModelContextWindow` — model id → context window / identity.
+- `StatusLevel.forUsed` — maps usage fraction to a band (normal/warning/low/
+  empty); drives gauge color.
+- `DateWindows` (`isToday`, `isInRollingWindow`) — rolling/daily windows.
+- `CoreSupport.parseISOTimestamp`, `NumberFormatting`, `HexColor` — helpers.
+- `Credentials` — parses `ClaudeCredentials` / `ServiceAccount` payloads.
+
+## App (`AgentMeter`)
+
+- `AgentMeterApp` — `applicationDidFinishLaunching`, menu-bar setup.
+- `UsageStore.refreshNow` — refresh loop feeding the UI (fan-in 5).
+- `MenuBarMetric` / `MenuBarIconPath` / `MeterBar` — menu-bar gauge drawing.
+- `MenuContentView`, `SettingsView`, `Stats/*` — popover, settings, stats window.
+- `Floating/*` — optional floating HUD panel.
+- `Network/*` — `CodexQuotaClient`, `CodexTokenRefresher`, `NetworkOptIn`.
+  All network is **opt-in**; default is offline (enforced by CI).
+- `Localization.LanguageStore.tr` — string lookup (fan-in 12); UI is localized.
+
+## Conventions
+
+- Keep `AgentMeterCore` UI-free — it's meant to lift into a Stats module
+  unchanged (see `Package.swift` comment). Don't import AppKit/SwiftUI there.
+- New logic lands in Core with a test in `AgentMeterCoreTests`.
+- Offline-by-default: anything touching the network goes through `NetworkOptIn`.

Sources/AgentMeter/Stats/StatsRootView.swift

@@ -151,7 +151,10 @@ struct StatsRootView: View {
             HStack(spacing: 34) {
                 kpi(lang.tr("Total tokens", "總 tokens"), Int(totalTokens).compactTokenString)
                 kpi(lang.tr("Total cost", "總花費"), moneyString(totalCost))
-                kpi("Claude / Codex", "\(moneyString(cost(.claudeCode))) · \(moneyString(cost(.codex)))", small: true)
+                // ponytail: breakdown only meaningful in .all; otherwise it duplicates Total cost
+                if service == .all {
+                    kpi("Claude / Codex", "\(moneyString(cost(.claudeCode))) · \(moneyString(cost(.codex)))", small: true)
+                }
             }
             Rectangle().fill(AM.hairline).frame(height: 1)
             sectionHeader(lang.tr("Daily usage", "每日用量"))