Preload SQLite native lib from extension dir (0.15.13).

Co-authored-by: Cursor <cursoragent@cursor.com>

AssistentSqliteBootstrap.cs

@@ -1,3 +1,6 @@
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
 using System.Threading;
 using SQLitePCL;
 
@@ -5,7 +8,9 @@ namespace Mrleo1nid.SwarmAssistent;
 
 /// <summary>
 /// SwarmUI loads extensions in an isolated AssemblyLoadContext — Microsoft.Data.Sqlite
-/// does not auto-init native SQLite there. Call once before the first connection.
+/// does not auto-init native SQLite there. Native libs ship under the extension dir
+/// (runtimes/linux-x64/native/libe_sqlite3.so), but the loader searches the host
+/// base dir unless we preload from the extension assembly location.
 /// </summary>
 internal static class AssistentSqliteBootstrap
 {
@@ -17,6 +22,42 @@ internal static class AssistentSqliteBootstrap
         {
             return;
         }
+        PreloadNativeLibrary();
         Batteries_V2.Init();
     }
+
+    static void PreloadNativeLibrary()
+    {
+        string extDir = Path.GetDirectoryName(typeof(AssistentSqliteBootstrap).Assembly.Location)
+            ?? AppContext.BaseDirectory
+            ?? "";
+        if (string.IsNullOrWhiteSpace(extDir))
+        {
+            return;
+        }
+        string[] relPaths =
+        [
+            Path.Combine("runtimes", "linux-x64", "native", "libe_sqlite3.so"),
+            Path.Combine("runtimes", "linux-x64", "native", "e_sqlite3.so"),
+            "libe_sqlite3.so",
+            "e_sqlite3.so",
+        ];
+        foreach (string rel in relPaths)
+        {
+            string path = Path.Combine(extDir, rel);
+            if (!File.Exists(path))
+            {
+                continue;
+            }
+            try
+            {
+                NativeLibrary.Load(path);
+                return;
+            }
+            catch (Exception ex)
+            {
+                SwarmUI.Utils.Logs.Debug($"AssistentSqliteBootstrap: NativeLibrary.Load({path}): {ex.Message}");
+            }
+        }
+    }
 }