feat(ai-usage): 优化额度与重置进度展示

Packages/XStatsKit/Sources/XStatsUI/Design/Tokens.swift

@@ -17,6 +17,7 @@ extension DS {
         static let success = Color.dynamic(light: 0x16A34A, dark: 0x22C55E)
         static let warning = Color.dynamic(light: 0xD97706, dark: 0xF59E0B)
         static let error = Color.dynamic(light: 0xDC2626, dark: 0xF87171)
+        static let critical = Color.dynamic(light: 0x991B1B, dark: 0xEF4444)
 
         // 文字
         static let textPrimary = Color.dynamic(light: 0x111827, dark: 0xF3F4F6)

Packages/XStatsKit/Sources/XStatsUI/Panel/AIUsagePage.swift

@@ -139,21 +139,19 @@ private struct LocalUsageContent: View {
                                         .foregroundStyle(DS.Palette.textPrimary)
                                 }
                                 .dsFont(.xs)
-                                ProgressView(value: window.remainingPercent, total: 100)
-                                    .tint(DS.Palette.primary)
+                                ProgressTrack(fraction: window.remainingPercent / 100,
+                                              color: progressTint(for: window.remainingPercent))
                                     .accessibilityLabel("\(quotaTitle(window.kind)) \(tr("剩余")) \(Int(window.remainingPercent.rounded()))%")
                                 if let reset = window.resetsAt {
                                     Text(tr("重置：") + " " + reset.formatted(Date.FormatStyle(date: .abbreviated, time: .shortened, locale: L10n.locale)))
                                         .dsFont(.xs).foregroundStyle(DS.Palette.textTertiary)
                                     TimelineView(.periodic(from: .now, by: 60)) { context in
                                         if let fraction = window.remainingTimeFraction(at: context.date) {
-                                            HStack(spacing: DS.Space.s2) {
-                                                Text(tr("距重置"))
-                                                    .dsFont(.xs).foregroundStyle(DS.Palette.textTertiary)
-                                                ProgressView(value: fraction, total: 1)
-                                                    .tint(DS.Palette.textTertiary)
-                                                    .accessibilityLabel(tr("距重置"))
-                                            }
+                                            // 时间条越接近重置越满、颜色越偏绿；额度条则随剩余量减少而变红。
+                                            ProgressTrack(fraction: 1 - fraction,
+                                                          color: progressTint(for: (1 - fraction) * 100))
+                                                .accessibilityLabel(tr("重置：") + " " + reset.formatted(Date.FormatStyle(date: .abbreviated, time: .shortened, locale: L10n.locale)))
+                                                .accessibilityValue("\(Int(((1 - fraction) * 100).rounded()))%")
                                         }
                                     }
                                 }
@@ -186,6 +184,14 @@ private struct LocalUsageContent: View {
         }
     }
 
+    private func progressTint(for percent: Double) -> Color {
+        if percent <= 10 { return DS.Palette.critical }
+        if percent <= 20 { return DS.Palette.error }
+        if percent < 40 { return DS.Palette.warning }
+        if percent < 80 { return DS.Palette.primary }
+        return DS.Palette.success
+    }
+
     private func quotaFailureText(_ failure: AIQuotaFailure?) -> String {
         switch failure {
         case nil: tr("暂无额度数据")

Packages/XStatsKit/Tests/AIUsageTests/QuotaProviderTests.swift

@@ -57,6 +57,20 @@ private actor StubQuotaHTTPClient: QuotaHTTPClient {
         #expect(request.value(forHTTPHeaderField: "Authorization") == "Bearer test-token")
     }
 
+    @Test func codexShowsOnlyQuotaWindowsReturnedForEachPlan() throws {
+        let now = Date(timeIntervalSince1970: 1_799_000_000)
+        let plus = Data(#"{"plan_type":"plus","rate_limit":{"primary_window":{"used_percent":35,"limit_window_seconds":18000,"reset_after_seconds":3600},"secondary_window":null}}"#.utf8)
+        let pro = Data(#"{"plan_type":"pro","rate_limit":{"primary_window":{"used_percent":74,"limit_window_seconds":604800,"reset_after_seconds":86400},"secondary_window":null}}"#.utf8)
+
+        let plusSnapshot = try CodexQuotaProvider.parse(plus, now: now)
+        #expect(plusSnapshot.window(.session)?.remainingPercent == 65)
+        #expect(plusSnapshot.window(.weekly) == nil)
+
+        let proSnapshot = try CodexQuotaProvider.parse(pro, now: now)
+        #expect(proSnapshot.window(.session) == nil)
+        #expect(proSnapshot.window(.weekly)?.remainingPercent == 26)
+    }
+
     @Test func claudeMapsFiveHourAndWeeklyBuckets() async throws {
         let http = StubQuotaHTTPClient(body: #"{"five_hour":{"utilization":22.5,"resets_at":"2026-09-23T10:00:00Z"},"seven_day":{"utilization":72,"resets_at":"2026-09-29T10:00:00Z"},"seven_day_sonnet":{"utilization":81,"resets_at":"2026-09-29T10:00:00Z"}}"#)
         let provider = ClaudeQuotaProvider(credentials: { "claude-test-token" }, http: http)

ThirdPartyNotices.md

@@ -78,8 +78,7 @@ SOFTWARE.
 
 ## AI Provider 契约参考
 
-XStats 的 AI Provider 契约与状态设计参考了以下项目公开的 Provider 契约、测试样例与实现模式；
-XStats 未引入这些项目的可执行程序、Sparkle 更新模块或浏览器扩展，也不读取任何登录凭据：
+XStats 的 AI Provider 契约与状态设计参考了以下项目公开的 Provider 契约、测试样例与实现模式：
 
 - [burakgon/ai-usage-menubar](https://github.com/burakgon/ai-usage-menubar)，MIT License，Copyright (c) 2026 Burak Gon
 - [robinebers/openusage](https://github.com/robinebers/openusage)，MIT License，Copyright (c) 2026 Robin Ebers