R0.1 browse over gRPC SHIPPED — QueryTag cracked, M0 gRPC parity complete

Wires HistorianClient.BrowseTagNamesAsync over gRPC (Transport==RemoteGrpc) via
Grpc/HistorianGrpcTagClient.BrowseTagNamesAsync: StartTagQuery(OData) -> paged
QueryTag -> EndTagQuery. Live-verified against a real 2023 R2 server (returns Sys* tags).

QueryTag packet-id recovered WITHOUT native disassembly: a .rdata packet-descriptor
table in aahClientManaged.dll lists {0x6751,1}=StartTagQuery immediately followed by
{0x6752,1}=QueryTag (found via pefile byte-scan of .rdata), confirmed live.

Wire format (live-verified):
- request btRequest = u16 0x6752 + u16 version(1) + u16 queryType(1=names) + u32 startIndex + u32 count
- response btResonse = u32 count + per-name(u32 charCount + UTF-16LE) + trailer (NextIndex/metadata, ignored)
- new HistorianTagQueryProtocol.ParseTagNameQueryPage tolerates the trailer
- GlobToODataFilter translates the SDK glob filter to OData (Pre*->startswith, *suf->endswith,
  *mid*->contains, exact->eq); the 2023 R2 metadata-server parses filters as OData.

Replaces the earlier RE probe helpers with the shipped browse path. Adds golden-byte
(BuildQueryTagRequest) + 8 glob-translation unit tests + gated live browse test.
226 unit tests pass; 5/5 live gRPC tests pass (read, probe, system-param, metadata, browse).

Milestone 0 (full gRPC parity) is complete.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01B6mcaT2PjRFKcogzp9UkfC

tests/AVEVA.Historian.Client.Tests/HistorianGrpcIntegrationTests.cs

@@ -87,7 +87,7 @@ public sealed class HistorianGrpcIntegrationTests
     }
 
     [Fact]
-    public async Task StartTagQuery_OverGrpc_AcceptsODataFilter()
+    public async Task BrowseTagNamesAsync_OverGrpc_ReturnsSystemTags()
     {
         string? host = Environment.GetEnvironmentVariable("HISTORIAN_GRPC_HOST");
         if (string.IsNullOrWhiteSpace(host) || string.IsNullOrEmpty(Environment.GetEnvironmentVariable("HISTORIAN_USER")))
@@ -95,19 +95,16 @@ public sealed class HistorianGrpcIntegrationTests
             return;
         }
 
-        // R0.1 finding (2026-06-21): on the 2023 R2 gRPC front door the metadata-server pipe IS
-        // reachable (unlike 2020 WCF) and StartActiveTagnamesQuery parses the filter as OData —
-        // startswith/contains/eq succeed; SQL-LIKE "%"/glob "*" fail with "ODataFilter: bad token".
-        // StartTagQuery returns the 8-byte (queryHandle, tagCount) response. The follow-on QueryTag
-        // paging request format is not yet captured (see roadmap R0.1), so browse is not yet wired.
-        HistorianClientOptions options = BuildOptions(host);
-        var result = await Task.Run(() =>
-            AVEVA.Historian.Client.Grpc.HistorianGrpcTagClient.ProbeStartTagQuery(options, "startswith(TagName,'Sys')", CancellationToken.None));
+        // Full R0.1 browse over gRPC: StartTagQuery(OData) -> paged QueryTag(0x6752) -> EndTagQuery.
+        HistorianClient client = new(BuildOptions(host));
+        List<string> names = [];
+        await foreach (string name in client.BrowseTagNamesAsync("Sys*", CancellationToken.None))
+        {
+            names.Add(name);
+        }
 
-        Assert.True(result.Success,
-            $"StartTagQuery(OData) should succeed; errLen={result.ErrorLength} " +
-            $"err=\"{System.Text.Encoding.ASCII.GetString(result.Error).Replace('\0', '.')}\"");
-        Assert.Equal(8, result.ResponseLength); // (queryHandle, tagCount)
+        Assert.NotEmpty(names);
+        Assert.All(names, n => Assert.StartsWith("Sys", n, StringComparison.Ordinal));
     }
 
     private static HistorianClientOptions BuildOptions(string host)