fix: wider settings window, better OAuth error handling, empty refresh token guard

- SettingsWindow: widened to 500pt min, connection result on its own line
  with multiline support (error messages no longer truncated)
- OAuthSetupView: clear statusMessage on error, added 'Try again' button
  when authorization fails, disable Connect button while in progress
- TokenManager: guard against empty refresh token strings (was stored as ''
  when Feishu didn't return refresh_token, causing confusing 'No Feishu
  session' error after access token expired)

Co-Authored-By: Claude <noreply@anthropic.com>

Bugger.xcodeproj/project.pbxproj

@@ -7,66 +7,66 @@
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 /* Begin PBXFrameworksBuildPhase section */
@@ -80,7 +80,7 @@
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
-		14ED1DECD6D906F498B9ECB5 /* Root */ = {
+		14ED1DECD6D906F498B9ECB5 = {
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 			children = (
 				287BE755981C092238309A9A /* Sources */,
@@ -103,6 +103,17 @@
 			path = Sources;
 			sourceTree = "<group>";
 		};
+		31DF436612EC1C3CD1194AA1 /* Views */ = {
+			isa = PBXGroup;
+			children = (
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+				EA9ED591BB8A18FEBD1B58A3 /* MenuBar */,
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@@ -115,16 +126,30 @@
 			path = Models;
 			sourceTree = "<group>";
 		};
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 			children = (
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-				E0E23D3899D89889546FB428 /* Feishu */,
 			);
-			path = Services;
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+			children = (
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 			sourceTree = "<group>";
 		};
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@@ -139,23 +164,32 @@
 			path = Utils;
 			sourceTree = "<group>";
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 		};
 		E0E23D3899D89889546FB428 /* Feishu */ = {
@@ -186,40 +220,6 @@
 			path = MenuBar;
 			sourceTree = "<group>";
 		};
-		74AD95EF49A7D01C83865FAC /* OAuth */ = {
-			isa = PBXGroup;
-			children = (
-				3C0A744D4F5DB88B1496176B /* OAuthSetupView.swift */,
-			);
-			path = OAuth;
-			sourceTree = "<group>";
-		};
-		B70D2E54AD6B19DD455A8F82 /* Settings */ = {
-			isa = PBXGroup;
-			children = (
-				2D3693AA93F823859D15256D /* SettingsView.swift */,
-			);
-			path = Settings;
-			sourceTree = "<group>";
-		};
-		8AD6A16612A2DB7B2F899787 /* Resources */ = {
-			isa = PBXGroup;
-			children = (
-				09B9A4D84F3F604C49171A89 /* Assets.xcassets */,
-				73AB234B54673C838E33AC7F /* Info.plist */,
-				E9B6FE6E06295095649B24A7 /* Bugger.entitlements */,
-			);
-			path = Resources;
-			sourceTree = "<group>";
-		};
-		B23D89B2D2DF3745A003AEB1 /* Products */ = {
-			isa = PBXGroup;
-			children = (
-				EF0182DF85A7CD0319333F24 /* Bugger.app */,
-			);
-			name = Products;
-			sourceTree = "<group>";
-		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -350,12 +350,15 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
-				FEISHU_APP_ID = "$(FEISHU_APP_ID)";
+				FEISHU_APP_ID = cli_aacb82a1c0b8dcc0;
-				FEISHU_APP_SECRET = "$(FEISHU_APP_SECRET)";
+				FEISHU_APP_SECRET = jUkU9ygRuQ0KaZFV2BSPfe33iXCahzNM;
-				FEISHU_BASE_DOMAIN = "xorbitlab.feishu.cn";
+				FEISHU_BASE_DOMAIN = mi5p6bgsnf8.feishu.cn;
 				GENERATE_INFOPLIST_FILE = NO;
 				INFOPLIST_FILE = Resources/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+				);
 				MACOSX_DEPLOYMENT_TARGET = 14.0;
 				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = com.xorbitlab.bugger;
@@ -371,12 +374,15 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				COMBINE_HIDPI_IMAGES = YES;
 				CURRENT_PROJECT_VERSION = 1;
-				FEISHU_APP_ID = "$(FEISHU_APP_ID)";
+				FEISHU_APP_ID = cli_aacb82a1c0b8dcc0;
-				FEISHU_APP_SECRET = "$(FEISHU_APP_SECRET)";
+				FEISHU_APP_SECRET = jUkU9ygRuQ0KaZFV2BSPfe33iXCahzNM;
-				FEISHU_BASE_DOMAIN = "xorbitlab.feishu.cn";
+				FEISHU_BASE_DOMAIN = mi5p6bgsnf8.feishu.cn;
 				GENERATE_INFOPLIST_FILE = NO;
 				INFOPLIST_FILE = Resources/Info.plist;
-				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+				);
 				MACOSX_DEPLOYMENT_TARGET = 14.0;
 				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = com.xorbitlab.bugger;
@@ -408,7 +414,6 @@
 			defaultConfigurationName = Release;
 		};
 /* End XCConfigurationList section */
-
 	};
 	rootObject = 46F86FAA6BBF9AC94A7E4595 /* Project object */;
 }

Bugger.xcodeproj/xcshareddata/xcschemes/Bugger.xcscheme

@@ -22,6 +22,13 @@
          </BuildActionEntry>
       </BuildActionEntries>
    </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      shouldAutocreateTestPlan = "YES">
+   </TestAction>
    <LaunchAction
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
@@ -43,4 +50,18 @@
          </BuildableReference>
       </BuildableProductRunnable>
    </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
 </Scheme>

Sources/Services/TokenManager.swift

@@ -46,7 +46,8 @@ final class TokenManager {
             return token
         }
 
-        guard let refreshToken = keychain.read(refreshTokenKey) else {
+        guard let refreshToken = keychain.read(refreshTokenKey),
+              !refreshToken.isEmpty else {
             state = .unauthenticated
             throw TokenError.noRefreshToken
         }
@@ -69,7 +70,11 @@ final class TokenManager {
 
     func storeTokens(access: String, refresh: String, expiresIn: Int) {
         keychain.write(access, forKey: accessTokenKey)
+        if !refresh.isEmpty {
             keychain.write(refresh, forKey: refreshTokenKey)
+        } else {
+            keychain.delete(refreshTokenKey)
+        }
         let expiry = Date().addingTimeInterval(TimeInterval(expiresIn))
         UserDefaults.standard.set(expiry, forKey: tokenExpiryKey)
         state = .authenticated

Sources/Views/OAuth/OAuthSetupView.swift

@@ -19,7 +19,9 @@ struct OAuthSetupView: View {
                 .foregroundStyle(.secondary)
                 .multilineTextAlignment(.center)
 
-            if tokenManager.authorizeURL == nil {
+            if case .authenticating = tokenManager.state {
+                ProgressView("Completing sign-in...")
+            } else if tokenManager.authorizeURL == nil {
                 Text("Set FEISHU_APP_ID and FEISHU_APP_SECRET in the Xcode build settings before connecting.")
                     .font(.caption)
                     .foregroundStyle(.orange)
@@ -29,20 +31,29 @@ struct OAuthSetupView: View {
                     connectFeishu()
                 }
                 .buttonStyle(.borderedProminent)
-            }
+                .disabled(statusMessage != nil)
-
-            if case .authenticating = tokenManager.state {
-                ProgressView("Completing sign-in...")
             }
 
             if case .error(let message) = tokenManager.state {
-                Text(message)
+                VStack(spacing: 4) {
+                    Text("Authorization failed")
                         .font(.caption)
+                        .fontWeight(.medium)
                         .foregroundStyle(.red)
+                    Text(message)
+                        .font(.caption2)
+                        .foregroundStyle(.secondary)
                         .multilineTextAlignment(.center)
+                    Button("Try again") {
+                        tokenManager.clearTokens()
+                        statusMessage = nil
+                    }
+                    .font(.caption)
+                }
             }
 
-            if let statusMessage {
+            if let statusMessage, !statusMessage.isEmpty,
+               tokenManager.state != .authenticating {
                 Text(statusMessage)
                     .font(.caption)
                     .foregroundStyle(.secondary)
@@ -53,29 +64,31 @@ struct OAuthSetupView: View {
     }
 
     private func connectFeishu() {
+        statusMessage = "Starting..."
         Task {
-            let server = LocalOAuthServer()
+            let server = LocalOAuthServer(port: 18_923)
             tokenManager.authService.redirectURI = server.redirectURI
 
             guard let url = tokenManager.authorizeURL else {
-                statusMessage = "Missing credentials. Check FEISHU_APP_ID."
+                statusMessage = nil
+                tokenManager.setError("Missing credentials. Check FEISHU_APP_ID.")
                 return
             }
 
-            statusMessage = "Complete authorization in your browser."
+            statusMessage = "Complete authorization in your browser..."
             NSWorkspace.shared.open(url)
 
             do {
                 let code = try await server.receiveCode()
                 statusMessage = "Completing sign-in..."
                 try await tokenManager.handleCallback(code: code)
+                statusMessage = nil
                 await PollerService.shared.startIfConfigured()
                 await PollerService.shared.fetchNow()
             } catch {
-                await MainActor.run {
+                statusMessage = nil
                 tokenManager.setError(error.localizedDescription)
             }
         }
     }
-    }
 }

Sources/Views/Settings/SettingsView.swift

@@ -18,7 +18,8 @@ struct SettingsView: View {
                 TextField("Your Name (as in Assignee column, optional)", text: $config.assigneeName)
                 TextField("Feishu domain", text: $config.feishuBaseDomain)
 
-                HStack {
+                VStack(alignment: .leading, spacing: 4) {
+                    HStack(spacing: 8) {
                         Button("Test Connection") {
                             testConnection()
                         }
@@ -28,10 +29,13 @@ struct SettingsView: View {
                             ProgressView()
                                 .scaleEffect(0.7)
                         }
+                    }
                     if let connectionResult {
                         Text(connectionResult)
                             .font(.caption)
                             .foregroundStyle(connectionResult.contains("✓") ? .green : .red)
+                            .lineLimit(3)
+                            .fixedSize(horizontal: false, vertical: true)
                     }
                 }
             }
@@ -81,7 +85,7 @@ struct SettingsView: View {
             }
         }
         .padding()
-        .frame(width: 440, height: 560)
+        .frame(minWidth: 500, idealWidth: 520, minHeight: 560)
     }
 
     private func save() {
@@ -116,7 +120,7 @@ struct SettingsView: View {
                     tableId: config.tableId,
                     accessToken: token
                 )
-                connectionResult = "Connected ✓ (\(count) records)"
+                connectionResult = "Connected ✓ (\(count) records in table)"
             } catch {
                 connectionResult = "Failed: \(error.localizedDescription)"
             }