fix(mac): render context bar as image

apps/macos/Sources/Clawdis/ContextUsageBar.swift

@@ -1,8 +1,10 @@
+import AppKit
 import SwiftUI
 
 struct ContextUsageBar: View {
     let usedTokens: Int
     let contextTokens: Int
+    var width: CGFloat = 220
     var height: CGFloat = 6
 
     private var clampedFractionUsed: Double {
@@ -24,17 +26,16 @@ struct ContextUsageBar: View {
     }
 
     var body: some View {
-        // Prefer the native progress indicator in menus; `GeometryReader` can get wonky
-        // inside `MenuBarExtra`-backed menus (often receiving zero width).
-        ZStack {
-            Capsule()
-                .fill(Color.secondary.opacity(0.25))
-            ProgressView(value: self.clampedFractionUsed, total: 1)
-                .progressViewStyle(.linear)
-                .tint(self.tint)
-                .clipShape(Capsule())
-        }
-        .frame(height: self.height)
+        // SwiftUI menus (MenuBarExtraStyle.menu) drop certain view types (including ProgressView/Canvas).
+        // Render the bar as an image to reliably display inside the menu.
+        Image(nsImage: Self.renderBar(
+            width: self.width,
+            height: self.height,
+            fractionUsed: self.clampedFractionUsed,
+            percentUsed: self.percentUsed))
+            .resizable()
+            .interpolation(.none)
+            .frame(width: self.width, height: self.height)
         .accessibilityLabel("Context usage")
         .accessibilityValue(self.accessibilityValue)
     }
@@ -44,4 +45,49 @@ struct ContextUsageBar: View {
         let pct = Int(round(self.clampedFractionUsed * 100))
         return "\(pct) percent used"
     }
+
+    private static func renderBar(
+        width: CGFloat,
+        height: CGFloat,
+        fractionUsed: Double,
+        percentUsed: Int?) -> NSImage
+    {
+        let clamped = min(1, max(0, fractionUsed))
+        let size = NSSize(width: max(1, width), height: max(1, height))
+        let image = NSImage(size: size)
+        image.isTemplate = false
+
+        image.lockFocus()
+        defer { image.unlockFocus() }
+
+        let rect = NSRect(origin: .zero, size: size)
+        let radius = rect.height / 2
+
+        let background = NSColor.white.withAlphaComponent(0.12)
+        let stroke = NSColor.white.withAlphaComponent(0.18)
+
+        let fill: NSColor = {
+            guard let pct = percentUsed else { return NSColor.secondaryLabelColor }
+            if pct >= 95 { return .systemRed }
+            if pct >= 80 { return .systemOrange }
+            if pct >= 60 { return .systemYellow }
+            return .systemGreen
+        }()
+
+        let track = NSBezierPath(roundedRect: rect, xRadius: radius, yRadius: radius)
+        background.setFill()
+        track.fill()
+        stroke.setStroke()
+        track.lineWidth = 0.75
+        track.stroke()
+
+        let fillWidth = max(1, floor(rect.width * clamped))
+        let fillRect = NSRect(x: rect.minX, y: rect.minY, width: fillWidth, height: rect.height)
+        let clip = NSBezierPath(roundedRect: rect, xRadius: radius, yRadius: radius)
+        clip.addClip()
+        fill.setFill()
+        NSBezierPath(rect: fillRect).fill()
+
+        return image
+    }
 }

apps/macos/Sources/Clawdis/MenuContentView.swift

@@ -265,8 +265,8 @@ struct MenuContent: View {
                 }
                 ContextUsageBar(
                     usedTokens: row.tokens.total,
-                    contextTokens: row.tokens.contextTokens)
-                    .frame(width: 220)
+                    contextTokens: row.tokens.contextTokens,
+                    width: 220)
             }
             .padding(.vertical, 2)
         } else {

apps/macos/Sources/Clawdis/SessionsSettings.swift

@@ -151,8 +151,10 @@ struct SessionsSettings: View {
                         .font(.caption.monospacedDigit())
                         .foregroundStyle(.secondary)
                 }
-                ContextUsageBar(usedTokens: row.tokens.total, contextTokens: row.tokens.contextTokens)
-                    .frame(maxWidth: .infinity)
+                ContextUsageBar(
+                    usedTokens: row.tokens.total,
+                    contextTokens: row.tokens.contextTokens,
+                    width: 260)
             }
 
             HStack(spacing: 10) {