feat(adminui): inline script-source editor in the virtual-tag modal

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/IUnsTreeService.cs

@@ -401,4 +401,36 @@ public interface IUnsTreeService
     /// <param name="ct">A token to cancel the operation.</param>
     /// <returns>Success, a concurrency failure, or a delete-failed failure.</returns>
     Task<UnsMutationResult> DeleteVirtualTagAsync(string virtualTagId, byte[] rowVersion, CancellationToken ct = default);
+
+    /// <summary>
+    /// Loads a script's editable source for the inline script-source panel in the virtual-tag modal,
+    /// along with the concurrency token the panel must echo back on save and the script's display name.
+    /// Reads untracked. Returns <c>null</c> when the script no longer exists.
+    /// </summary>
+    /// <param name="scriptId">The script whose source to load.</param>
+    /// <param name="ct">A token to cancel the load.</param>
+    /// <returns>The <c>(SourceCode, RowVersion, Name)</c> triple, or <c>null</c> when missing.</returns>
+    Task<(string SourceCode, byte[] RowVersion, string Name)?> GetScriptSourceAsync(string scriptId, CancellationToken ct = default);
+
+    /// <summary>
+    /// Counts how many virtual tags bind the given script, so the inline editor can warn the operator
+    /// that an edit to a shared script affects every virtual tag using it.
+    /// </summary>
+    /// <param name="scriptId">The script to count usages of.</param>
+    /// <param name="ct">A token to cancel the query.</param>
+    /// <returns>The number of virtual tags whose <c>ScriptId</c> matches.</returns>
+    Task<int> CountVirtualTagsUsingScriptAsync(string scriptId, CancellationToken ct = default);
+
+    /// <summary>
+    /// Saves an edited script body from the inline panel: updates <c>SourceCode</c> and recomputes the
+    /// SHA-256 <c>SourceHash</c> (lower-case hex, matching the Script-edit page). This save is separate
+    /// from the virtual-tag save and is guarded by its own last-write-wins optimistic concurrency on
+    /// <see cref="Configuration.Entities.Script.RowVersion"/>.
+    /// </summary>
+    /// <param name="scriptId">The script to update.</param>
+    /// <param name="sourceCode">The new source body.</param>
+    /// <param name="rowVersion">The concurrency token the panel last read.</param>
+    /// <param name="ct">A token to cancel the operation.</param>
+    /// <returns>Success, a missing-row failure, or a concurrency failure.</returns>
+    Task<(bool Ok, string? Error)> UpdateScriptSourceAsync(string scriptId, string sourceCode, byte[] rowVersion, CancellationToken ct = default);
 }