fix(s7): refuse unservable tag shapes per tag at every gate (R07:H3, R07:U4)

The init-time tag guards THREW: one mis-authored tag (DB1.DBZ0, DB1.DBW0 typed
Float64, T5 typed Int32, a writable Bool array) faulted the whole driver and the
actor retried the same init every 10 s forever, darkening every tag on the PLC.
Neither the editor nor the deploy gate checked any of it.

- S7AddressParser moves to S7.Contracts (same namespace) and a new
  S7TagShapeRules there is the single authority on servable shapes.
- S7TagDefinitionFactory.FromTagConfig applies it, so the AdminUI editor, the
  deploy gate (Inspect, with the specific reason) and the driver init refuse
  the same tags. Init now skips a refused tag (ISkippedTagReporter) instead of
  throwing; the throwing RejectUnsupportedTagConfigs is gone.
- New rules on top of the old guards: a narrow type at the wrong access width
  (every read failed) and a Bool array not starting at bit 0 (U4: DB1.DBX0.3
  silently read bit 0 of bytes 0..n).
- AdminUI test fixtures that used addresses the driver could never serve
  (DB1.DBS0, a browse "SomeAddress", Int32/Float32 on DBW) now use real ones.

Refs #742
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.S7.Tests/S7DriverCodeReviewFixTests2.cs

@@ -158,23 +158,9 @@ public sealed class S7DriverCodeReviewFixTests2
     [InlineData(S7DataType.DateTime)]
     public async Task Initialize_rejects_wide_type_at_non_byte_address_with_NotSupportedException(S7DataType dt)
     {
-        var opts = new S7DriverOptions
-        {
-            Host = "192.0.2.1",
-            Timeout = TimeSpan.FromMilliseconds(250),
-            // DB1.DBD0 is a DWord (non-byte) address — guard-(b) must fault on the address shape
-            // for a wide type. (At a byte address like DB1.DBB0 the 8-byte numerics round-trip;
-            // see S7ScalarBlockTests.)
-            RawTags = S7RawTags.Entries(new S7TagDefinition("X", "DB1.DBD0", dt)),
-        };
-        using var drv = new S7Driver(opts, $"s7-wide-nonbyte-{dt}");
-
-        var ex = await Should.ThrowAsync<NotSupportedException>(async () =>
-            await drv.InitializeAsync("{}", TestContext.Current.CancellationToken));
-        ex.Message.ShouldContain(dt.ToString());
-
-        var health = drv.GetHealth();
-        health.State.ShouldBe(DriverState.Faulted);
+        // DB1.DBD0 is a DWord (non-byte) address — a wide type there would mis-frame its value. (At a
+        // byte address like DB1.DBB0 the 8-byte numerics round-trip; see S7ScalarBlockTests.)
+        await S7TagSkipAssert.RefusedPerTagAsync(new S7TagDefinition("X", "DB1.DBD0", dt), dt.ToString(), "byte-addressed");
     }
 
     /// <summary>Verifies that Initialize accepts implemented data types.</summary>