Consolidate IssueTracker gh calls into one GraphQL query

Packages/CrowCore/Sources/CrowCore/AppState.swift

@@ -115,6 +115,14 @@ public final class AppState {
     /// Set by `IssueTracker` when the token lacks a required scope; cleared on next success.
     public var githubScopeWarning: String?
 
+    /// Last observed GitHub GraphQL rate-limit snapshot. `nil` before the first
+    /// successful query. Populated from the `rateLimit` block on each refresh.
+    public var githubRateLimit: GitHubRateLimit?
+
+    /// Non-fatal rate-limit warning surfaced in Settings. `nil` when not throttled.
+    /// Set by `IssueTracker` when polling is suspended; cleared on next success.
+    public var rateLimitWarning: String?
+
     /// Terminal readiness state per terminal ID.
     public var terminalReadiness: [UUID: TerminalReadiness] = [:]
 
@@ -303,6 +311,26 @@ public final class AppState {
     public init() {}
 }
 
+// MARK: - GitHub Rate Limit
+
+/// Snapshot of the GitHub GraphQL rate-limit state observed from the `rateLimit`
+/// block on the last successful query.
+public struct GitHubRateLimit: Equatable, Sendable {
+    public let remaining: Int
+    public let limit: Int
+    public let resetAt: Date
+    public let cost: Int
+    public let observedAt: Date
+
+    public init(remaining: Int, limit: Int, resetAt: Date, cost: Int, observedAt: Date) {
+        self.remaining = remaining
+        self.limit = limit
+        self.resetAt = resetAt
+        self.cost = cost
+        self.observedAt = observedAt
+    }
+}
+
 // MARK: - Per-Session Hook State
 
 /// Observable wrapper for per-session hook/Claude state.

Packages/CrowUI/Sources/CrowUI/SettingsView.swift

@@ -83,11 +83,31 @@ public struct SettingsView: View {
         }
     }
 
+    @ViewBuilder
+    private var rateLimitWarningBanner: some View {
+        if let warning = appState.rateLimitWarning {
+            HStack(alignment: .top, spacing: 8) {
+                Image(systemName: "clock.badge.exclamationmark.fill")
+                    .foregroundStyle(.orange)
+                Text(warning)
+                    .font(.caption)
+                    .textSelection(.enabled)
+                Spacer()
+            }
+            .padding(10)
+            .background(Color.orange.opacity(0.12))
+            .cornerRadius(6)
+        }
+    }
+
     private var generalTab: some View {
         Form {
             if appState.githubScopeWarning != nil {
                 Section { githubScopeWarningBanner }
             }
+            if appState.rateLimitWarning != nil {
+                Section { rateLimitWarningBanner }
+            }
             Section("Development Root") {
                 HStack {
                     TextField("Path", text: $devRoot)