Here is a list of all files with brief descriptions:

[detail level 123456]

▼ core
▼ src
▼ cli
Benchmark.hpp	Benchmark scenario types, JSON parsing, and subprocess-based execution
BenchmarkParams.hpp	Benchmark-specific CLI parameters
BenchmarkReport.hpp	Benchmark result formatting, comparison, and export
CLI.integration.hpp	Shared utilities for CLI integration tests
CLIOptions.hpp	CLI argument parsing, validation, and configuration for ppforest2
Evaluate.hpp	Multi-iteration model evaluation with convergence and the evaluate subcommand handler
EvaluateParams.hpp	Evaluate-specific CLI parameters: simulation, convergence, and evaluation options
ModelParams.hpp	Model training parameters shared by train and evaluate
Predict.hpp	Predict subcommand handler
Serve.hpp	Serve subcommand handler: HTTP server around a loaded model
ServeHandlers.hpp	Pure request → response functions for the `serve` subcommand
ServeParams.hpp	Serve subcommand parameters
Summarize.hpp	Summarize subcommand handler: display saved model summary
Train.hpp	Model training utilities and train subcommand handler
Validation.hpp	Central config validation for all CLI subcommands
▼ io
Color.hpp	TTY-aware colored terminal output utilities
EvaluateResult.hpp	Evaluation data types: per-iteration stats and run summaries
IO.hpp	File I/O utilities, JSON and CSV reading/writing
Output.hpp	Quiet-aware output context for CLI subcommands
Presentation.hpp	Model statistics, variable importance serialization, and formatted terminal display for confusion matrices and VI tables
Table.hpp	ANSI-safe column-driven table formatting
TempFile.hpp	RAII temporary file and directory with automatic cleanup
Timing.hpp	High-resolution timing utility for measuring function execution time
▼ models
▼ strategies
► binarize
Binarization.hpp
Disabled.hpp
LargestGap.hpp
► cutpoint
Cutpoint.hpp
MeanOfMeans.hpp
► grouping
ByCutpoint.hpp
ByLabel.hpp
Grouping.hpp
► leaf
LeafStrategy.hpp
MajorityVote.hpp
MeanResponse.hpp
► pp
PDA.hpp
ProjectionPursuit.hpp
► stop
CompositeStop.hpp
MaxDepth.hpp
MinSize.hpp
MinVariance.hpp
PureNode.hpp
StopRule.hpp
► vars
All.hpp
Uniform.hpp
VariableSelection.hpp
NodeContext.hpp
Strategy.hpp
Bagged.hpp
ClassificationForest.hpp
ClassificationTree.hpp
Evaluation.hpp	Free-function API for evaluating trained models — variable importance, out-of-bag diagnostics, and prediction error
Forest.hpp
Model.hpp
Projector.hpp
RegressionForest.hpp
RegressionTree.hpp
TrainingSpec.hpp
Tree.hpp
TreeBranch.hpp
TreeLeaf.hpp
TreeNode.hpp
Visualization.hpp	Tree-analysis visitors and geometric utilities for rendering projection-pursuit tree decision boundaries and structure diagrams
VIVisitor.hpp
▼ serialization
ExportValidation.hpp
Json.hpp
JsonOptional.hpp	Nlohmann::json support for std::optional<T>
▼ stats
ConfusionMatrix.hpp	Confusion matrix for classification model evaluation
DataPacket.hpp
GroupPartition.hpp
Metrics.hpp	Mode-specific evaluation metric blocks
Normal.hpp
Simulation.hpp
Stats.hpp
Uniform.hpp
▼ test
MockStop.hpp
NodeContextFixture.hpp
Projectors.hpp
TestSpec.hpp	Minimal mode-correct `TrainingSpec::Ptr` for structural tests
ThrowsWith.hpp
▼ utils
Invariant.hpp
JsonReader.hpp
Macros.hpp
Map.hpp
Math.hpp
RangeVector.hpp
System.hpp	System-level utilities (process memory measurement)
Types.hpp
UserError.hpp	Exception type for user-facing input validation errors