refactor: rename ScadaLink → ZB.MOM.WW.ScadaBridge (code + projects + namespaces)

Solution + 23 src projects + 26 test projects renamed; folders, csproj,
namespaces, and ScadaLinkDbContext/ScadaBridgeDbContext class updated.
ActorSystem "scadalink" → "scadabridge", Akka seed-node URLs migrated.
SQL roles/logins, LDAP domains, CLI command name, and CLI config dir
(~/.scadalink → ~/.scadabridge) also renamed.

Build green; 5 Host.Tests fail awaiting SQL login rename in next commit.
Pre-existing StaleTagMonitor timing flakes unchanged.

Rename script committed at tools/rename-to-scadabridge.sh.

src/ZB.MOM.WW.ScadaBridge.SiteRuntime/SiteRuntimeOptions.cs

@@ -0,0 +1,47 @@
+namespace ZB.MOM.WW.ScadaBridge.SiteRuntime;
+
+/// <summary>
+/// Configuration options for the Site Runtime component.
+/// Bound from ScadaBridge:SiteRuntime configuration section.
+/// </summary>
+public class SiteRuntimeOptions
+{
+    /// <summary>
+    /// Number of Instance Actors to create per batch during staggered startup.
+    /// Default: 20.
+    /// </summary>
+    public int StartupBatchSize { get; set; } = 20;
+
+    /// <summary>
+    /// Delay in milliseconds between startup batches to prevent reconnection storms.
+    /// Default: 100ms.
+    /// </summary>
+    public int StartupBatchDelayMs { get; set; } = 100;
+
+    /// <summary>
+    /// Maximum call depth for recursive script calls (CallScript/CallShared).
+    /// Default: 10.
+    /// </summary>
+    public int MaxScriptCallDepth { get; set; } = 10;
+
+    /// <summary>
+    /// Default script execution timeout in seconds.
+    /// Default: 30 seconds.
+    /// </summary>
+    public int ScriptExecutionTimeoutSeconds { get; set; } = 30;
+
+    /// <summary>
+    /// Per-subscriber buffer size for the site-wide Akka stream.
+    /// Slow subscribers drop oldest messages when buffer is full.
+    /// Default: 1000.
+    /// </summary>
+    public int StreamBufferSize { get; set; } = 1000;
+
+    /// <summary>
+    /// SiteRuntime-009: number of dedicated threads in the script-execution scheduler.
+    /// Script and alarm on-trigger bodies run on these threads instead of the shared
+    /// .NET thread pool, so blocking script I/O cannot starve the global pool.
+    /// Default: 8.
+    /// </summary>
+    public int ScriptExecutionThreadCount { get; set; } = 8;
+}