v3(ablegacy): apply Modbus exemplar — RawTags delivery + RawPath mapper

- Rename AbLegacyEquipmentTagParser → AbLegacyTagDefinitionFactory; TryParse →
  FromTagConfig(tagConfig, rawPath, out def). Drop the leading-{ heuristic and the
  deviceHostAddress key; def.Name = rawPath. Add inverse ToTagConfig. Keep strict-enum
  guards + Inspect.
- Options: Tags(IReadOnlyList<AbLegacyTagDefinition>) → RawTags(IReadOnlyList<RawTagEntry>).
- Driver: _tagsByRawPath (Ordinal); byName-only resolver; build table from _options.RawTags
  via FromTagConfig, threading WriteIdempotent + resolving RawTagEntry.DeviceName to the
  owning device host (ResolveDeviceHost; TODO(v3 WaveC) for the live Device-row host).
  DiscoverAsync + family-profile validation iterate the built table. Probe picks its address
  from RawTags via the mapper.
- Factory: retire the pre-declared tag DTO path; bind List<RawTagEntry>? RawTags; keep Devices.
- Cli BuildOptions: deliver typed defs as RawTagEntry via ToTagConfig.
- Tests: AbLegacyRawTags helper; migrate Tags= → RawTags; parser tests → FromTagConfig;
  equipment-ref driver/ResolveHost tests re-authored as RawTagEntry + read by RawPath.

Driver+Contracts+Cli green; 213 driver + 36 Cli tests pass.

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.AbLegacy.Contracts/AbLegacyDriverOptions.cs

@@ -1,4 +1,5 @@
 using System.ComponentModel.DataAnnotations;
+using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
 using ZB.MOM.WW.OtOpcUa.Driver.AbLegacy.PlcFamilies;
 
 namespace ZB.MOM.WW.OtOpcUa.Driver.AbLegacy;
@@ -14,8 +15,15 @@ public sealed class AbLegacyDriverOptions
     /// <summary>Gets or sets the list of PCCC devices to connect to.</summary>
     public IReadOnlyList<AbLegacyDeviceOptions> Devices { get; init; } = [];
 
-    /// <summary>Gets or sets the list of PCCC tag definitions.</summary>
-    public IReadOnlyList<AbLegacyTagDefinition> Tags { get; init; } = [];
+    /// <summary>
+    ///     Authored raw tags this driver serves. The deploy artifact hands each authored raw
+    ///     <c>Tag</c> as a <see cref="RawTagEntry"/> (RawPath identity + driver <c>TagConfig</c> blob +
+    ///     WriteIdempotent flag + owning <see cref="RawTagEntry.DeviceName"/>); the driver maps each
+    ///     through <see cref="AbLegacyTagDefinitionFactory.FromTagConfig"/> into its RawPath → definition
+    ///     table, routing each to its device by <see cref="RawTagEntry.DeviceName"/>. AbLegacy has no
+    ///     discovery protocol — the driver serves exactly these.
+    /// </summary>
+    public IReadOnlyList<RawTagEntry> RawTags { get; init; } = [];
 
     /// <summary>Gets or sets the probe (connectivity check) options.</summary>
     public AbLegacyProbeOptions Probe { get; init; } = new();