feat(account): add managed credits and cloud gateway

Introduce optional Apple account-backed credits with scoped gateway access while preserving local and BYOK paths. Refresh assistant behavior, tests, privacy disclosures, docs, and the website for the 2.0 experience.

OSGKeyboardExt/Services/AIKeyboardCoordinator.swift

@@ -110,7 +110,11 @@ final class AIKeyboardCoordinator {
         if case .materialUnavailable = resolution {
             AIAgentShortcutRun.trace("keyboard.submit rejected clipboardUnavailable skill=\(skill.id)")
         }
-        submitResolvedPrompt(resolution, thinkingEnabled: skill.thinkingEnabled)
+        submitResolvedPrompt(
+            resolution,
+            taskKind: skill.managedGatewayTaskKind,
+            thinkingEnabled: skill.thinkingEnabled
+        )
     }
 
     /// Tap an idle hint card: resolve its material, skip the mic, ask the host.
@@ -121,7 +125,7 @@ final class AIKeyboardCoordinator {
             for: card,
             clipboardText: ClipboardHistoryStore.shared.newestAIHintEligibleEntry()?.text
         )
-        submitResolvedPrompt(resolution)
+        submitResolvedPrompt(resolution, taskKind: .aiQuestion)
     }
 
     private var canAcceptIdleSubmit: Bool {
@@ -136,6 +140,7 @@ final class AIKeyboardCoordinator {
 
     private func submitResolvedPrompt(
         _ resolution: AIClipboardPrompt.Resolution,
+        taskKind: ManagedGatewayTaskKind,
         thinkingEnabled: Bool? = nil
     ) {
         guard case .ready(let prompt) = resolution else {
@@ -154,6 +159,7 @@ final class AIKeyboardCoordinator {
         let disposition = flow.submitAIQuestion(
             text: prompt,
             conversationID: conversationID,
+            taskKind: taskKind,
             thinkingEnabled: thinkingEnabled
         )
         if case .rejected(let rejection) = disposition {

OSGKeyboardExt/Services/ClipboardCaptureCoordinator.swift

@@ -5,8 +5,8 @@
 // (changeCount-driven). Writes accepted text into ClipboardHistoryStore.
 
 import Foundation
-import UIKit
 import OSGKeyboardShared
+import UIKit
 
 @MainActor
 protocol ClipboardPasteboardProviding: AnyObject {

OSGKeyboardExt/Services/KeyboardFlowCoordinator.swift

@@ -3,8 +3,8 @@
 //
 // Flow session start, recording, watchdogs, and result delivery handling.
 
-import UIKit
 import OSGKeyboardShared
+import UIKit
 
 @MainActor
 final class KeyboardFlowCoordinator {
@@ -681,6 +681,7 @@ final class KeyboardFlowCoordinator {
     func submitAIQuestion(
         text: String,
         conversationID: UUID,
+        taskKind: ManagedGatewayTaskKind = .aiQuestion,
         thinkingEnabled: Bool? = nil
     ) -> FlowUtteranceStartDisposition {
         let trimmed = text.trimmingCharacters(in: .whitespacesAndNewlines)
@@ -689,6 +690,7 @@ final class KeyboardFlowCoordinator {
             .aiQuestion(
                 conversationID: conversationID,
                 prefilledQuestion: trimmed,
+                taskKind: taskKind,
                 thinkingEnabled: thinkingEnabled
             )
         )
@@ -1191,6 +1193,7 @@ final class KeyboardFlowCoordinator {
             sourceHistoryEntryID: request.sourceHistoryEntryID,
             sourceHistoryEntryRevision: request.sourceHistoryEntryRevision,
             aiConversationID: request.aiConversationID,
+            aiTaskKind: request.aiTaskKind,
             startDeadlineAt: action == .startRecording ? currentStartDeadlineAt : nil,
             processingDeadlineAt: action == .stopRecording && request.isEdit
                 ? Date().timeIntervalSince1970
@@ -1898,6 +1901,7 @@ final class KeyboardFlowCoordinator {
             utteranceMode: .aiQuestion,
             aiConversationID: currentUtteranceRequest?.aiConversationID,
             aiQuestionText: text,
+            aiTaskKind: currentUtteranceRequest?.aiTaskKind,
             aiThinkingEnabled: currentUtteranceRequest?.aiThinkingEnabled,
             startDeadlineAt: currentStartDeadlineAt
         )
@@ -2034,7 +2038,7 @@ final class KeyboardFlowCoordinator {
                 onAIStreamingAnswer(result.text ?? "", result.utteranceId)
                 return
             }
-            if (result.status == .partial || result.status == .rawReady),
+            if result.status == .partial || result.status == .rawReady,
                let partial = result.text,
                !partial.isEmpty {
                 if result.resolvedUtteranceMode == .aiQuestion,

OSGKeyboardExt/Services/KeyboardTextInserter.swift

@@ -5,8 +5,8 @@
 // without re-running LLM polish in the extension. Also tracks the last
 // voice insertion so the undo button can roll it back safely.
 
-import UIKit
 import OSGKeyboardShared
+import UIKit
 
 @MainActor
 final class KeyboardTextInserter {