Fix Test Connection buttons needing a tab switch to activate

Root cause: on macOS, SecureField's bound value only commits when the
field loses focus (Return, click-away, tab switch) — not on every
keystroke like TextField. Every "Test Connection" button (Sync, Email,
Paperless, Anytype, Jarvis) gated its .disabled(...) on a *Configured
value fed by a SecureField-backed API key/token/password, so typing a
key straight into the field left the button looking permanently disabled
until something else forced a focus change.

Moved the "configured" check from the disabled condition into each test
function's action handler instead — by the time a click fires, the click
itself has already moved focus away and committed the field's value, so
the check now sees it correctly. Buttons stay clickable at all times
(gated only by their own isTesting spinner state) and show a clear
"Enter X first" message if config is actually incomplete.

oAI/Views/Screens/SettingsView.swift

@@ -2131,7 +2131,7 @@ It's better to admit "I need more information" or "I cannot do that" than to fak
                                     Text("Test Connection")
                                 }
                             }
-                            .disabled(isTestingSync || !settingsService.syncConfigured)
+                            .disabled(isTestingSync)
                             if let result = syncTestResult {
                                 Text(result)
                                     .font(.system(size: 13))
@@ -2431,7 +2431,7 @@ It's better to admit "I need more information" or "I cannot do that" than to fak
                                     Text("Test Connection")
                                 }
                             }
-                            .disabled(isTestingEmailConnection || !settingsService.emailServerConfigured)
+                            .disabled(isTestingEmailConnection)
                             if let result = emailConnectionTestResult {
                                 Text(result)
                                     .font(.system(size: settingsService.guiTextSize - 1))
@@ -2714,7 +2714,7 @@ It's better to admit "I need more information" or "I cannot do that" than to fak
                                     Text("Test Connection")
                                 }
                             }
-                            .disabled(isTestingPaperless || !settingsService.paperlessConfigured)
+                            .disabled(isTestingPaperless)
                             if let result = paperlessTestResult {
                                 Text(result)
                                     .font(.system(size: 13))
@@ -2748,6 +2748,11 @@ It's better to admit "I need more information" or "I cannot do that" than to fak
     private func testPaperlessConnection() async {
         isTestingPaperless = true
         paperlessTestResult = nil
+        guard settingsService.paperlessConfigured else {
+            paperlessTestResult = "✗ Enter a base URL and API token first."
+            isTestingPaperless = false
+            return
+        }
         let result = await PaperlessService.shared.testConnection()
         await MainActor.run {
             switch result {
@@ -2825,7 +2830,7 @@ It's better to admit "I need more information" or "I cannot do that" than to fak
                                     Text("Test Connection")
                                 }
                             }
-                            .disabled(isTestingAnytype || !settingsService.anytypeMcpConfigured)
+                            .disabled(isTestingAnytype)
                             if let result = anytypeTestResult {
                                 Text(result)
                                     .font(.system(size: 13))
@@ -2920,7 +2925,7 @@ It's better to admit "I need more information" or "I cannot do that" than to fak
                                     Text("Test Connection")
                                 }
                             }
-                            .disabled(isTestingJarvis || !settingsService.jarvisConfigured)
+                            .disabled(isTestingJarvis)
                             if let result = jarvisTestResult {
                                 Text(result)
                                     .font(.system(size: 13))
@@ -2951,6 +2956,11 @@ It's better to admit "I need more information" or "I cannot do that" than to fak
     private func testJarvisConnection() async {
         isTestingJarvis = true
         jarvisTestResult = nil
+        guard settingsService.jarvisConfigured else {
+            jarvisTestResult = "✗ Enter a URL and API key first."
+            isTestingJarvis = false
+            return
+        }
         let ok = await JarvisService.shared.testConnection()
         await MainActor.run {
             jarvisTestResult = ok ? "✓ Connected" : "✗ Connection failed"
@@ -2961,6 +2971,11 @@ It's better to admit "I need more information" or "I cannot do that" than to fak
     private func testAnytypeConnection() async {
         isTestingAnytype = true
         anytypeTestResult = nil
+        guard settingsService.anytypeMcpConfigured else {
+            anytypeTestResult = "✗ Enter an API key first."
+            isTestingAnytype = false
+            return
+        }
         let result = await AnytypeMCPService.shared.testConnection()
         await MainActor.run {
             switch result {
@@ -3389,6 +3404,12 @@ It's better to admit "I need more information" or "I cannot do that" than to fak
         isTestingEmailConnection = true
         emailConnectionTestResult = nil
 
+        guard settingsService.emailServerConfigured else {
+            emailConnectionTestResult = "✗ Enter your IMAP/SMTP host, username, and password first."
+            isTestingEmailConnection = false
+            return
+        }
+
         do {
             let result = try await EmailService.shared.testConnection()
             emailConnectionTestResult = "✓ \(result)"
@@ -3405,6 +3426,12 @@ It's better to admit "I need more information" or "I cannot do that" than to fak
         isTestingSync = true
         syncTestResult = nil
 
+        guard settingsService.syncConfigured else {
+            syncTestResult = "✗ Enter a repository URL and credentials first."
+            isTestingSync = false
+            return
+        }
+
         do {
             let result = try await gitSync.testConnection()
             syncTestResult = "✓ \(result)"