feat(adminui): tag-path hover (tag kind/type/driver inside ctx.GetTag literals)

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/ScriptAnalysis/ScriptAnalysisService.cs

@@ -227,7 +227,7 @@ public sealed class ScriptAnalysisService
         return new CompletionItem(symbol.Name, symbol.Name,
             symbol.ToDisplayString(SymbolDisplayFormat.MinimallyQualifiedFormat), kind);
     }
-    public HoverResponse Hover(HoverRequest req)
+    public async Task<HoverResponse> Hover(HoverRequest req)
     {
         if (string.IsNullOrWhiteSpace(req.CodeText)) return new HoverResponse(null);
         try
@@ -236,6 +236,21 @@ public sealed class ScriptAnalysisService
             var (tree, _, model, preambleLength) = Analyze(code);
             var position = OffsetInWrapped(code, req.Line, req.Column, preambleLength);
             var token = tree.GetRoot().FindToken(Math.Max(0, position - 1));
+
+            // Tag-path hover takes priority over C# symbol resolution: when the caret sits on a
+            // ctx.GetTag("…")/ctx.SetVirtualTag("…") path literal, show the resolved tag's info
+            // (or note it's not a known configured tag path) instead of the string-literal symbol.
+            if (_catalog is not null && TryGetTagPathLiteral(token, out var tagPath) && !string.IsNullOrEmpty(tagPath))
+            {
+                var info = await _catalog.GetTagInfoAsync(tagPath, CancellationToken.None);
+                static string Code(string s) => s.Replace("`", "\\`");
+                var tagMd = info is null
+                    ? $"**Tag path** `{Code(tagPath)}`\n\n⚠ Not a known configured tag path."
+                    : $"**Tag path** `{Code(info.Path)}`\n\n{info.Kind} · Type **{info.DataType}**"
+                        + (info.DriverInstanceId is null ? "" : $" · Driver `{Code(info.DriverInstanceId)}`");
+                return new HoverResponse(tagMd);
+            }
+
             var node = token.Parent;
             if (node is null) return new HoverResponse(null);
             // Resolve the token's node; if that yields nothing, climb to the enclosing