Strip optimize from menubar, fix stuck loading spinner

The menubar ran --optimize on every 30-second CLI invocation. As
sessions accumulated throughout the day, optimize got heavier until
it exceeded the 45-second timeout. When the fetch failed with no
cached data, the loading overlay had no escape hatch and stayed
forever.

- Never pass includeOptimize from the menubar (background loop,
  forceRefresh, tab/period switches, manual refresh button)
- On fetch failure with empty cache, retry without optimize as
  fallback so the spinner always clears
- refreshQuietly also skips optimize

mac/Sources/CodeBurnMenubar/AppStore.swift

@@ -71,9 +71,9 @@ final class AppStore {
         switchTask?.cancel()
         switchTask = Task {
             if selectedProvider == .all {
-                await refresh(includeOptimize: true, force: true)
+                await refresh(includeOptimize: false, force: true)
             } else {
-                async let main: Void = refresh(includeOptimize: true, force: true)
+                async let main: Void = refresh(includeOptimize: false, force: true)
                 async let all: Void = refreshQuietly(period: period)
                 _ = await (main, all)
             }
@@ -88,9 +88,9 @@ final class AppStore {
         switchTask?.cancel()
         switchTask = Task {
             if provider == .all {
-                await refresh(includeOptimize: true, force: true)
+                await refresh(includeOptimize: false, force: true)
             } else {
-                async let main: Void = refresh(includeOptimize: true, force: true)
+                async let main: Void = refresh(includeOptimize: false, force: true)
                 async let all: Void = refreshQuietly(period: selectedPeriod)
                 _ = await (main, all)
             }
@@ -119,8 +119,20 @@ final class AppStore {
             lastError = nil
         } catch {
             if Task.isCancelled { return }
-            lastError = String(describing: error)
             NSLog("CodeBurn: fetch failed for \(key.period.rawValue)/\(key.provider.rawValue): \(error)")
+            if includeOptimize, cache[key] == nil {
+                do {
+                    let fallback = try await DataClient.fetch(period: key.period, provider: key.provider, includeOptimize: false)
+                    guard !Task.isCancelled else { return }
+                    cache[key] = CachedPayload(payload: fallback, fetchedAt: Date())
+                    lastError = nil
+                    return
+                } catch {
+                    if Task.isCancelled { return }
+                    NSLog("CodeBurn: fallback fetch also failed: \(error)")
+                }
+            }
+            lastError = String(describing: error)
         }
 
         let allKey = PayloadCacheKey(period: selectedPeriod, provider: .all)
@@ -134,7 +146,7 @@ final class AppStore {
     /// Always uses the .all provider since the menubar badge shows total spend.
     func refreshQuietly(period: Period) async {
         do {
-            let fresh = try await DataClient.fetch(period: period, provider: .all, includeOptimize: true)
+            let fresh = try await DataClient.fetch(period: period, provider: .all, includeOptimize: false)
             cache[PayloadCacheKey(period: period, provider: .all)] = CachedPayload(payload: fresh, fetchedAt: Date())
         } catch {
             NSLog("CodeBurn: quiet refresh failed for \(period.rawValue): \(error)")

mac/Sources/CodeBurnMenubar/CodeBurnApp.swift

@@ -171,7 +171,7 @@ final class AppDelegate: NSObject, NSApplicationDelegate, NSPopoverDelegate {
         lastRefreshTime = now
 
         Task {
-            async let main: Void = store.refresh(includeOptimize: true, force: true)
+            async let main: Void = store.refresh(includeOptimize: false, force: true)
             async let today: Void = store.refreshQuietly(period: .today)
             _ = await (main, today)
             refreshStatusButton()
@@ -207,7 +207,7 @@ final class AppDelegate: NSObject, NSApplicationDelegate, NSPopoverDelegate {
                 if self.store.selectedPeriod != .today || self.store.selectedProvider != .all {
                     await self.store.refreshQuietly(period: .today)
                 }
-                await self.store.refresh(includeOptimize: true, force: true)
+                await self.store.refresh(includeOptimize: false, force: true)
                 self.refreshStatusButton()
                 try? await Task.sleep(nanoseconds: refreshIntervalNanos)
             }

mac/Sources/CodeBurnMenubar/Views/MenuBarContent.swift

@@ -407,7 +407,7 @@ struct FooterBar: View {
             .fixedSize()
 
             Button {
-                Task { await store.refresh(includeOptimize: true, force: true) }
+                Task { await store.refresh(includeOptimize: false, force: true) }
             } label: {
                 Image(systemName: store.isLoading ? "arrow.triangle.2.circlepath" : "arrow.clockwise")
                     .font(.system(size: 11, weight: .medium))