chore(posts): stop naming the CI Fiber customer sample part

The Cincinnati sample used by the CI Fiber tests is a customer production
part. Its geometry and NC were never tracked, but comments named its part
number and fixture file names and quoted its date and a pierce coordinate.
Replace them with generic wording and placeholder values; the fixture stays
outside the repository, configured only in the gitignored test-config.json.
Comment-only change.

OpenNest.Tests/CincinnatiCIFiber/CIFiberPostProcessorTests.cs

@@ -16,7 +16,7 @@ namespace OpenNest.Tests.CincinnatiCIFiber;
 
 /// <summary>
 /// Output-contract tests for the Cincinnati CI Fiber post, checked against the
-/// structure of the machine sample NC (12992-4SS_NEST.nc): header block,
+/// structure of a Cincinnati machine sample NC: header block,
 /// restart jump, N-labelled contour blocks with /L macro lines, G41
 /// selection, trimmed coordinate format and the M50/M30/% tail.
 /// </summary>

OpenNest.Tests/CincinnatiCIFiber/CIFiberSampleRegressionTests.cs

@@ -16,19 +16,20 @@ using OpenNest.Posts.CincinnatiCIFiber;
 namespace OpenNest.Tests.CincinnatiCIFiber;
 
 /// <summary>
-/// Regression against the real machine program: posts the reconstructed
-/// 12992-4SS nest (same part + layout as the sample NC) and compares contour
-/// counts, macro counts and perimeter geometry with 12992-4SS_NEST.nc.
+/// Regression against a real machine program: posts a nest reconstructed from
+/// a Cincinnati sample NC (same part and layout) and compares contour counts,
+/// macro counts and perimeter geometry with that NC. The sample is a customer
+/// production part, so the fixture stays outside the repository and is not
+/// named here.
 ///
 /// Each placed part in the fixture carries the sample's own pierce, lead-in
 /// and cut moves as its saved cutting program (not locked). Posting those
 /// saved programs must reproduce the sample move for move; the other tests
 /// replace them with OpenNest's own lead-ins first.
 ///
-/// The fixture lives outside the repository (/srv/shared). Configure it in
-/// OpenNest.Tests/test-config.json:
-///   { "CIFiberSampleNcPath": "/srv/shared/.../12992-4SS_NEST.nc",
-///     "CIFiberReconstructedNestPath": "/srv/shared/.../12992-4SS_NEST_reconstructed.nest" }
+/// Configure the fixture in OpenNest.Tests/test-config.json (gitignored):
+///   { "CIFiberSampleNcPath": "<path to the sample>.nc",
+///     "CIFiberReconstructedNestPath": "<path to the reconstructed>.nest" }
 /// Both must exist for the test to run; otherwise it skips.
 /// </summary>
 public class CIFiberSampleRegressionTests

Posts/OpenNest.Posts.CincinnatiCIFiber/CIFiberFormatter.cs

@@ -6,7 +6,7 @@ namespace OpenNest.Posts.CincinnatiCIFiber
     /// <summary>
     /// Formats numeric values for the CI Fiber machine program.
     /// Coordinates: up to <see cref="PostedAccuracy"/> decimals with trailing
-    /// zeros trimmed ("3.706", "5.01", "0"), never "-0" (sample NC format).
+    /// zeros trimmed ("1.234", "5.01", "0"), never "-0" (sample NC format).
     /// Header values (V.E.*) use fixed decimals.
     /// </summary>
     public sealed class CIFiberFormatter

Posts/OpenNest.Posts.CincinnatiCIFiber/CIFiberProgramWriter.cs

@@ -17,7 +17,7 @@ namespace OpenNest.Posts.CincinnatiCIFiber
     /// <code>
     /// ( &lt;nest name&gt; )
     /// ( CONFIGURATION - CI FIBER 8K )
-    /// ( August 20, 2026   01:10 PM )
+    /// ( &lt;month d, yyyy   hh:mm AM|PM&gt; )
     /// ( Material = Mild Steel .060 )
     /// V.E.MATERIAL = "MSN" ... V.E.UNIT = 1
     /// G90
@@ -43,7 +43,7 @@ namespace OpenNest.Posts.CincinnatiCIFiber
     /// %
     /// </code>
     ///
-    /// Coordinates are spaceless (G1X3.706Y47.488); arcs post I/J incremental
+    /// Coordinates are spaceless (G1X1.234Y5.678); arcs post I/J incremental
     /// from the arc start (TF5200 G162 default). The first motion block after
     /// the G41/G42 selection is always LINEAR (TF5200 §13.2.4.1): contours
     /// without a lead-in move are rejected with a clear error.