chore: created first ai stream (#12968)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **New Features**
* Introduced a redesigned chat interface with new cell types for user,
assistant, system, loading, and error messages.
  * Added streaming chat responses and improved session management.
* Enhanced input box behavior, allowing sending messages with the return
key and inserting new lines via the edit menu.
* Added new GraphQL queries for fetching recent and latest chat
sessions.

* **Refactor**
* Replaced previous chat message and session management with a new, more
structured view model system.
* Updated chat view to use a custom table view component for better
message rendering and empty state handling.
* Simplified and improved error and loading state handling in the chat
UI.

* **Bug Fixes**
  * Improved error reporting and retry options for failed chat messages.
  * Fixed inconsistent property types for message and error identifiers.

* **Style**
* Updated UI components for chat cells with modern layouts and
consistent styling.

* **Chores**
  * Added a new package dependency for event streaming support.
* Renamed various internal properties and classes for clarity and
consistency.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/frontend/apps/ios/App/App/AffineViewController+AIButton.swift

@@ -10,24 +10,26 @@ import UIKit
 
 extension AFFiNEViewController: IntelligentsButtonDelegate {
   func onIntelligentsButtonTapped(_ button: IntelligentsButton) {
-    IntelligentContext.shared.webView = webView!
-    button.beginProgress()
-
-    IntelligentContext.shared.preparePresent { result in
-      button.stopProgress()
-      switch result {
-      case .success:
-        let controller = IntelligentsController()
-        self.present(controller, animated: true)
-      case let .failure(failure):
-        let alert = UIAlertController(
-          title: "Error",
-          message: failure.localizedDescription,
-          preferredStyle: .alert
-        )
-        alert.addAction(UIAlertAction(title: "OK", style: .default))
-        self.present(alert, animated: true)
-      }
-    }
+    // if it shows up then we are ready to go
+    let controller = IntelligentsController()
+    self.present(controller, animated: true)
+    //    IntelligentContext.shared.webView = webView
+    //    button.beginProgress()
+    //    IntelligentContext.shared.preparePresent { result in
+    //      DispatchQueue.main.async {
+    //        button.stopProgress()
+    //        switch result {
+    //        case .success:
+    //        case let .failure(failure):
+    //          let alert = UIAlertController(
+    //            title: "Error",
+    //            message: failure.localizedDescription,
+    //            preferredStyle: .alert
+    //          )
+    //          alert.addAction(UIAlertAction(title: "OK", style: .default))
+    //          self.present(alert, animated: true)
+    //        }
+    //      }
+    //    }
   }
 }

packages/frontend/apps/ios/App/App/AffineViewController.swift

@@ -3,6 +3,8 @@ import Intelligents
 import UIKit
 
 class AFFiNEViewController: CAPBridgeViewController {
+  var intelligentsButton: IntelligentsButton?
+
   override func viewDidLoad() {
     super.viewDidLoad()
     webView?.allowsBackForwardNavigationGestures = true
@@ -11,6 +13,7 @@ class AFFiNEViewController: CAPBridgeViewController {
     edgesForExtendedLayout = []
     let intelligentsButton = installIntelligentsButton()
     intelligentsButton.delegate = self
+    self.intelligentsButton = intelligentsButton
     dismissIntelligentsButton()
   }
 
@@ -35,11 +38,39 @@ class AFFiNEViewController: CAPBridgeViewController {
     plugins.forEach { bridge?.registerPluginInstance($0) }
   }
 
+  private var intelligentsButtonTimer: Timer?
+  private var isCheckingIntelligentEligibility = false
+
   override func viewDidAppear(_ animated: Bool) {
     super.viewDidAppear(animated)
+    IntelligentContext.shared.webView = webView
     navigationController?.setNavigationBarHidden(false, animated: animated)
-    DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
-      self.presentIntelligentsButton()
+    let timer = Timer.scheduledTimer(withTimeInterval: 3, repeats: true) { [weak self] _ in
+      self?.checkEligibilityOfIntelligent()
+    }
+    intelligentsButtonTimer = timer
+    RunLoop.main.add(timer, forMode: .common)
+  }
+
+  private func checkEligibilityOfIntelligent() {
+    guard !isCheckingIntelligentEligibility else { return }
+    assert(intelligentsButton != nil)
+    guard intelligentsButton?.isHidden ?? false else { return } // already eligible
+    isCheckingIntelligentEligibility = true
+    IntelligentContext.shared.webView = webView
+    IntelligentContext.shared.preparePresent { [self] result in
+      DispatchQueue.main.async {
+        defer { self.isCheckingIntelligentEligibility = false }
+        switch result {
+        case .failure: break
+        case .success: self.presentIntelligentsButton()
+        }
+      }
     }
   }
+
+  override func viewDidDisappear(_ animated: Bool) {
+    super.viewDidDisappear(animated)
+    intelligentsButtonTimer?.invalidate()
+  }
 }