feat: show unresolved comments on PR badge and add merge button

PR badge now shows a balloon icon with unresolved thread count inline.
Card detail header shows approval count (green checkmark) and unresolved
thread count (orange bubble) as a clickable pill that links to the first
unresolved comment when available, or the PR URL.

Adds a green merge button in the header for approved PRs.

Also fetches first unresolved review thread comment URL from the
existing enrichPRDetails GraphQL query (no extra API calls).

Author: rogeriochaves

Sources/KanbanCode/CardDetailView.swift

@@ -157,6 +157,17 @@ struct CardDetailView: View {
 
                     // Action pills
                     HStack(spacing: 8) {
+                        // PR summary pill
+                        if let primary = card.link.prLink {
+                            prSummaryPill(primary: primary)
+                        }
+
+                        // Merge button (approved PRs only)
+                        if let primary = card.link.prLink,
+                           primary.status == .approved {
+                            mergeButton(pr: primary)
+                        }
+
                         if card.link.tmuxLink == nil {
                             let hasSession = card.link.sessionLink != nil
                             let isStart = card.column == .backlog || !hasSession
@@ -1060,6 +1071,72 @@ struct CardDetailView: View {
         isLoadingPRBody = false
     }
 
+    @ViewBuilder
+    private func prSummaryPill(primary: PRLink) -> some View {
+        let totalApprovals = card.link.prLinks.compactMap(\.approvalCount).reduce(0, +)
+        let totalThreads = card.link.prLinks.compactMap(\.unresolvedThreads).reduce(0, +)
+        let targetURL = totalThreads > 0
+            ? (primary.firstUnresolvedThreadURL ?? primary.url)
+            : primary.url
+
+        if totalApprovals > 0 || totalThreads > 0 {
+            Button {
+                if let urlStr = targetURL, let url = URL(string: urlStr) {
+                    NSWorkspace.shared.open(url)
+                }
+            } label: {
+                HStack(spacing: 6) {
+                    if totalApprovals > 0 {
+                        HStack(spacing: 2) {
+                            Image(systemName: "checkmark")
+                                .font(.system(size: 10, weight: .bold))
+                            Text(verbatim: "\(totalApprovals)")
+                                .font(.system(size: 12, weight: .medium))
+                        }
+                        .foregroundStyle(.green)
+                    }
+                    if totalThreads > 0 {
+                        HStack(spacing: 2) {
+                            Image(systemName: "bubble.left")
+                                .font(.system(size: 10))
+                            Text(verbatim: "\(totalThreads)")
+                                .font(.system(size: 12, weight: .medium))
+                        }
+                        .foregroundStyle(.orange)
+                    }
+                }
+                .frame(height: 36)
+                .padding(.horizontal, 10)
+                .contentShape(Capsule())
+            }
+            .buttonStyle(.plain)
+            .glassEffect(.regular, in: .capsule)
+            .shadow(color: .black.opacity(0.12), radius: 4, y: 2)
+            .modifier(HoverBrightness())
+            .help(totalThreads > 0 ? "Open unresolved comment" : "Open pull request")
+        }
+    }
+
+    @ViewBuilder
+    private func mergeButton(pr: PRLink) -> some View {
+        Button {
+            if let urlStr = pr.url, let url = URL(string: urlStr) {
+                NSWorkspace.shared.open(url)
+            }
+        } label: {
+            Label("Merge", systemImage: "arrow.triangle.merge")
+                .font(.system(size: 13))
+                .foregroundStyle(Color.green.opacity(0.8))
+                .padding(.horizontal, 12)
+                .frame(height: 36)
+                .background(Color.green.opacity(0.08), in: Capsule())
+                .background(.ultraThinMaterial, in: Capsule())
+        }
+        .buttonStyle(HoverFeedbackStyle())
+        .shadow(color: .black.opacity(0.25), radius: 4, y: 2)
+        .help("Merge pull request")
+    }
+
     private var actionsMenuButton: some View {
         NSMenuButton {
             Image(systemName: "ellipsis")

Sources/KanbanCode/CardView.swift

@@ -73,22 +73,13 @@ struct CardView: View {
 
                 // PR badge(s) — worst status across all PRs
                 if let primary = card.link.prLink {
-                    PRBadge(status: card.link.worstPRStatus, prNumber: primary.number)
+                    let totalThreads = card.link.prLinks.compactMap(\.unresolvedThreads).reduce(0, +)
+                    PRBadge(status: card.link.worstPRStatus, prNumber: primary.number, unresolvedThreads: totalThreads)
                     if card.link.prLinks.count > 1 {
                         Text(verbatim: "+\(card.link.prLinks.count - 1)")
                             .font(.system(size: 9, weight: .medium))
                             .foregroundStyle(.secondary)
                     }
-                    let totalThreads = card.link.prLinks.compactMap(\.unresolvedThreads).reduce(0, +)
-                    if totalThreads > 0 {
-                        HStack(spacing: 1) {
-                            Image(systemName: "bubble.left.and.exclamationmark.bubble.right")
-                                .font(.system(size: 8))
-                            Text(verbatim: "\(totalThreads)")
-                                .font(.system(size: 9, weight: .medium))
-                        }
-                        .foregroundStyle(.orange)
-                    }
                 }
 
                 // Issue indicator

Sources/KanbanCode/PRBadge.swift

@@ -6,15 +6,25 @@ import KanbanCodeCore
 struct PRBadge: View {
     let status: PRStatus?
     let prNumber: Int
+    var unresolvedThreads: Int = 0
 
     var body: some View {
-        HStack(spacing: 2) {
+        HStack(spacing: 3) {
             if status == .approved {
                 Image(systemName: "checkmark")
                     .font(.system(size: 8, weight: .bold))
             }
             Text(verbatim: "#\(prNumber)")
                 .font(.system(size: 10, weight: .medium, design: .rounded))
+            if unresolvedThreads > 0 {
+                HStack(spacing: 1) {
+                    Image(systemName: "bubble.left")
+                        .font(.system(size: 7))
+                    Text(verbatim: "\(unresolvedThreads)")
+                        .font(.system(size: 9, weight: .medium))
+                }
+                .foregroundStyle(.orange)
+            }
         }
         .padding(.horizontal, 5)
         .padding(.vertical, 2)

Sources/KanbanCodeCore/Adapters/Git/GhCliAdapter.swift

@@ -76,7 +76,7 @@ public final class GhCliAdapter: PRTrackerPort, @unchecked Sendable {
             \(alias): pullRequest(number: \(pr.number)) {
               body
               reviewDecision
-              reviewThreads(first: 100) { nodes { isResolved } }
+              reviewThreads(first: 100) { nodes { isResolved comments(first: 1) { nodes { url } } } }
               reviews(states: APPROVED) { totalCount }
               commits(last: 1) { nodes { commit { statusCheckRollup {
                 state
@@ -148,10 +148,19 @@ public final class GhCliAdapter: PRTrackerPort, @unchecked Sendable {
                 pr.approvalCount = totalCount
             }
 
-            // Unresolved threads
+            // Unresolved threads + first unresolved comment URL
             if let threads = prData["reviewThreads"] as? [String: Any],
                let nodes = threads["nodes"] as? [[String: Any]] {
-                pr.unresolvedThreads = nodes.filter { ($0["isResolved"] as? Bool) == false }.count
+                let unresolved = nodes.filter { ($0["isResolved"] as? Bool) == false }
+                pr.unresolvedThreads = unresolved.count
+                // Grab URL of the first unresolved thread's first comment
+                if let firstThread = unresolved.first,
+                   let comments = firstThread["comments"] as? [String: Any],
+                   let commentNodes = comments["nodes"] as? [[String: Any]],
+                   let firstComment = commentNodes.first,
+                   let url = firstComment["url"] as? String {
+                    pr.firstUnresolvedThreadURL = url
+                }
             }
 
             // CI status + individual check runs

Sources/KanbanCodeCore/Domain/Entities/Link.swift

@@ -61,6 +61,7 @@ public struct PRLink: Codable, Sendable, Equatable {
     public var body: String?
     public var approvalCount: Int?
     public var checkRuns: [CheckRun]?
+    public var firstUnresolvedThreadURL: String?
 
     public init(
         number: Int,
@@ -70,7 +71,8 @@ public struct PRLink: Codable, Sendable, Equatable {
         title: String? = nil,
         body: String? = nil,
         approvalCount: Int? = nil,
-        checkRuns: [CheckRun]? = nil
+        checkRuns: [CheckRun]? = nil,
+        firstUnresolvedThreadURL: String? = nil
     ) {
         self.number = number
         self.url = url
@@ -80,6 +82,7 @@ public struct PRLink: Codable, Sendable, Equatable {
         self.body = body
         self.approvalCount = approvalCount
         self.checkRuns = checkRuns
+        self.firstUnresolvedThreadURL = firstUnresolvedThreadURL
     }
 }
 

Sources/KanbanCodeCore/Domain/Entities/PullRequest.swift

@@ -14,6 +14,7 @@ public struct PullRequest: Identifiable, Sendable {
     public var body: String?
     public var approvalCount: Int
     public var checkRuns: [CheckRun]
+    public var firstUnresolvedThreadURL: String?
 
     public init(
         number: Int,
@@ -26,7 +27,8 @@ public struct PullRequest: Identifiable, Sendable {
         unresolvedThreads: Int = 0,
         body: String? = nil,
         approvalCount: Int = 0,
-        checkRuns: [CheckRun] = []
+        checkRuns: [CheckRun] = [],
+        firstUnresolvedThreadURL: String? = nil
     ) {
         self.number = number
         self.title = title
@@ -39,6 +41,7 @@ public struct PullRequest: Identifiable, Sendable {
         self.body = body
         self.approvalCount = approvalCount
         self.checkRuns = checkRuns
+        self.firstUnresolvedThreadURL = firstUnresolvedThreadURL
     }
 
     /// Derive unified PR status with priority ordering.

Sources/KanbanCodeCore/UseCases/BackgroundOrchestrator.swift

@@ -113,7 +113,8 @@ public final class BackgroundOrchestrator: @unchecked Sendable {
                                 number: pr.number, url: pr.url,
                                 status: pr.status, title: pr.title,
                                 approvalCount: pr.approvalCount > 0 ? pr.approvalCount : nil,
-                                checkRuns: pr.checkRuns.isEmpty ? nil : pr.checkRuns
+                                checkRuns: pr.checkRuns.isEmpty ? nil : pr.checkRuns,
+                                firstUnresolvedThreadURL: pr.firstUnresolvedThreadURL
                             ))
                         }
                     }

Sources/KanbanCodeCore/UseCases/BoardState.swift

@@ -501,6 +501,9 @@ public final class BoardState: @unchecked Sendable {
                             mergedLinks[entry.index].prLinks[entry.prIndex].status = pr.status
                             mergedLinks[entry.index].prLinks[entry.prIndex].title = pr.title
                             mergedLinks[entry.index].prLinks[entry.prIndex].url = pr.url
+                            if pr.approvalCount > 0 {
+                                mergedLinks[entry.index].prLinks[entry.prIndex].approvalCount = pr.approvalCount
+                            }
                             KanbanCodeLog.info("refresh", "Refreshed PR #\(entry.number) → \(pr.status)")
                         }
                     }