* test: Migrate TrackedSpec.scala to verify.BasicTestSuite
Migrate TrackedSpec.scala from ScalaTest's AnyFlatSpec to
verify.BasicTestSuite, following the pattern established by other
test files in the sbt codebase.
Changes:
- Replace AnyFlatSpec class with BasicTestSuite object
- Convert 'should ... in' syntax to 'test(...)' syntax
- Use Scala 3 syntax with colon indentation
- Change === to == for assertions (BasicTestSuite style)
- Replace fail() with throw new AssertionError for explicit failures
- Add 'end TrackedSpec' marker
- Convert braces to colon-style for if expressions
**Problem**
Scala 3.8 REPL won't work since they've split the repl artifact into another JAR.
**Solution**
This works around it by creating a yet-another sandbox configuration ScalaReplTool
(similar to ScalaTool and ScalaDocTool) and a separate scalaInstance for
console task, so when Zinc is invoked we'll be able to conjure the right array of JARs.
**Problem**
sbt currently does not support JDK 25 Main class. JDK 25 supports:
1. non-public main method
2. doesn't need Array[String] arg
3. doesn't have to be a static method
**Solution**
This updates Zinc, which supports new Main class detection.
In addition, this implements in-process run emulation support.
**Problem**
Scala 3.8.0 nightly and later in-sources the scala-library for the use by Scala 3, as opposed to using Scala-2.13-bound standard library.
This means that we will run into situations where scala-library should NOT align with scala-reflect, which might exist transitively.
**Solution**
Adjust the csrSameVersions rule for Scala 3.8 so it will only try to keep scala-library and scala3-library versions aligned.