Added a home page prompt for missing API keys of enterprise providers (#1056)

Co-authored-by: Thorsten Sommer <SommerEngineering@users.noreply.github.com>

app/MindWork AI Studio/Tools/PluginSystem/PluginConfiguration.cs

@@ -18,6 +18,7 @@ public sealed class PluginConfiguration(bool isInternal, LuaState state, PluginT
     private List<DataMandatoryInfo> mandatoryInfos = [];
     private List<DataIntroduction> introductions = [];
     private List<DataMailboxProvider> mailboxProviders = [];
+    private List<DataUserAPIKeyPrompt> userAPIKeyPrompts = [];
 
     /// <summary>
     /// The list of configuration objects. Configuration objects are, e.g., providers or chat templates. 
@@ -42,6 +43,12 @@ public sealed class PluginConfiguration(bool isInternal, LuaState state, PluginT
     /// </summary>
     public IReadOnlyList<DataMailboxProvider> MailboxProviders => this.mailboxProviders;
 
+    /// <summary>
+    /// What this configuration plugin tells the user while AI Studio asks for the API key of its providers;
+    /// at most one entry. The prompt is live plugin content and is not persisted to ConfigurationData.
+    /// </summary>
+    public IReadOnlyList<DataUserAPIKeyPrompt> UserAPIKeyPrompts => this.userAPIKeyPrompts;
+
     /// <summary>
     /// True/false when explicitly configured in the plugin, otherwise null.
     /// </summary>
@@ -204,6 +211,7 @@ public sealed class PluginConfiguration(bool isInternal, LuaState state, PluginT
         this.mandatoryInfos.Clear();
         this.introductions.Clear();
         this.mailboxProviders.Clear();
+        this.userAPIKeyPrompts.Clear();
 
         // Ensure that the main CONFIG table exists and is a valid Lua table:
         if (!this.State.Environment["CONFIG"].TryRead<LuaTable>(out var mainTable))
@@ -400,6 +408,9 @@ public sealed class PluginConfiguration(bool isInternal, LuaState state, PluginT
 
         // Handle configured mail servers:
         this.TryReadMailboxProviders(mainTable);
+
+        // Handle the configured prompt for the API key of the user:
+        this.TryReadUserAPIKeyPrompt(mainTable);
         
         // Config: preselected provider?
         ManagedConfiguration.TryProcessConfiguration(x => x.App, x => x.PreselectedProvider, Guid.Empty, this.Id, settingsTable, dryRun);
@@ -872,4 +883,13 @@ public sealed class PluginConfiguration(bool isInternal, LuaState state, PluginT
                 LOG.LogWarning("The table 'MAILBOX_PROVIDERS' entry at index {Index} does not contain a valid mail server (config plugin id: {ConfigPluginId}).", i, this.Id);
         }
     }
+
+    private void TryReadUserAPIKeyPrompt(LuaTable mainTable)
+    {
+        if (!mainTable.TryGetValue("USER_API_KEY_PROMPT", out var promptValue) || !promptValue.TryRead<LuaTable>(out var promptTable))
+            return;
+
+        if (DataUserAPIKeyPrompt.TryParseConfiguration(promptTable, this.Id, out var prompt))
+            this.userAPIKeyPrompts.Add(prompt);
+    }
 }