feat(inbound-api): ApiMethod.TraceAllCalls (entity, migration, mgmt command, CLI --trace-all-calls)

Flow Debugger (design 2026-09-05 §5.2): bit NOT NULL DEFAULT 0 column + EF migration
20260906034113 with its docs/plans/sql production twin. CreateApiMethodCommand gains
TraceAllCalls=false; UpdateApiMethodCommand gains bool? TraceAllCalls (null = unchanged so an
older CLI never resets it). Management result echoes the flag; CLI create/update expose
--trace-all-calls; README carries the ~7-rows-per-call warning.

Claude-Session: https://claude.ai/code/session_01GSLkkHKz9JrAtmJjmQK3cP

src/ZB.MOM.WW.ScadaBridge.Commons/Entities/InboundApi/ApiMethod.cs

@@ -15,6 +15,12 @@ public class ApiMethod
     /// <summary>Gets or sets the script execution timeout in seconds.</summary>
     public int TimeoutSeconds { get; set; }
 
+    /// <summary>
+    /// When true every production call to this method is fully traced (Flow Debugger design
+    /// 2026-09-05 §5.2); intended for low-volume integration methods — ~7 audit rows per call.
+    /// </summary>
+    public bool TraceAllCalls { get; set; }
+
     /// <summary>Initializes a new <see cref="ApiMethod"/> with the required name and script.</summary>
     /// <param name="name">The method name (used as the route segment).</param>
     /// <param name="script">The C# script body to execute.</param>