Bump actions/checkout from 4 to 6

.dockerignore

@@ -0,0 +1,12 @@
+__pycache__/
+*.py[cod]
+.pytest_cache/
+.env
+venv/
+.venv/
+.git/
+.github/
+output/
+*.db
+.DS_Store
+

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,34 @@
+---
+name: Bug report
+about: Report something that is not working as expected
+title: '[BUG] '
+labels: bug
+---
+
+## Description
+
+A clear and concise description of the bug.
+
+## Steps to Reproduce
+
+1.
+2.
+3.
+
+## Expected Behavior
+
+What you expected to happen.
+
+## Actual Behavior
+
+What actually happened. Include the full error message or stack trace if applicable.
+
+## Environment
+
+- OS:
+- Python version:
+- Project commit / version:
+
+## Additional Context
+
+Any other context, screenshots, or sample inputs.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,22 @@
+---
+name: Feature request
+about: Suggest an idea or improvement
+title: '[FEATURE] '
+labels: enhancement
+---
+
+## Problem
+
+What problem does this solve? Who would benefit?
+
+## Proposed Solution
+
+How could it work?
+
+## Alternatives Considered
+
+Any other approaches you considered.
+
+## Additional Context
+
+Mockups, references, or related issues.

.github/dependabot.yml

@@ -0,0 +1,17 @@
+version: 2
+updates:
+  - package-ecosystem: "pip"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    open-pull-requests-limit: 5
+    labels:
+      - "dependencies"
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+    labels:
+      - "dependencies"
+      - "ci"

.github/pull_request_template.md

@@ -0,0 +1,23 @@
+## Summary
+
+<!-- Brief description of what this PR does and why. -->
+
+## Changes
+
+<!-- Bullet list of changes. -->
+-
+-
+
+## Testing
+
+- [ ] All existing tests pass (`pytest -v`)
+- [ ] Added or updated tests for new behavior
+- [ ] Manually verified end-to-end pipeline
+
+## Screenshots (if UI / report changes)
+
+<!-- Drag images here if relevant. -->
+
+## Related Issues
+
+<!-- Closes #N -->

.github/workflows/tests.yml

@@ -0,0 +1,30 @@
+name: Tests
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.10", "3.11", "3.12"]
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+
+      - name: Run tests
+        run: pytest -v

.gitignore

@@ -21,3 +21,10 @@ Thumbs.db
 
 # Output
 output/
+
+# ML artifacts
+*.pkl
+*.joblib
+*.h5
+*.parquet
+*.npy

CONTRIBUTING.md

@@ -0,0 +1,42 @@
+# Contributing
+
+Thanks for your interest! This is primarily a personal portfolio project, but contributions are welcome.
+
+## Getting Started
+
+1. Fork the repository and clone your fork.
+2. Create and activate a virtual environment:
+   ```bash
+   python3 -m venv venv
+   source venv/bin/activate
+   ```
+3. Install dependencies:
+   ```bash
+   pip install -r requirements.txt
+   ```
+4. Run the test suite to confirm your environment is set up:
+   ```bash
+   pytest -v
+   ```
+5. Try a demo run:
+   ```bash
+   python main.py
+   ```
+
+## Submitting Changes
+
+1. Create a feature branch from `main`:
+   ```bash
+   git checkout -b feature/your-feature
+   ```
+2. Make focused, well-described commits.
+3. Make sure the test suite passes locally before pushing.
+4. Open a pull request against `main` with a clear description of what you changed and why. Reference any related issues.
+
+## Code Style
+
+- Follow PEP 8 for Python code.
+- Add tests for any new behavior — especially in the model training and evaluation pipeline.
+- Do not commit pickled models, large datasets, or generated reports.
+- Update the README if user-facing behavior changes.
+- Keep changes focused — one PR, one concern.

Dockerfile

@@ -0,0 +1,12 @@
+FROM python:3.11-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+EXPOSE 8501
+
+CMD ["streamlit", "run", "app.py", "--server.address", "0.0.0.0", "--server.port", "8501"]

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2026
+Copyright (c) 2026 Eugen Goebel
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -2,6 +2,24 @@
 
 An automated machine learning pipeline that profiles datasets, preprocesses data, selects features, trains and compares multiple models, and generates a professional evaluation report — all without requiring an API key.
 
+![CI](https://github.com/eugen-goebel/predictive-analytics-agent/actions/workflows/tests.yml/badge.svg)
+![Python](https://img.shields.io/badge/Python-3.10+-blue)
+![Tests](https://img.shields.io/badge/Tests-35_passed-brightgreen)
+![scikit--learn](https://img.shields.io/badge/scikit--learn-1.5+-f7931e)
+![Streamlit](https://img.shields.io/badge/Streamlit-1.40+-red)
+![License](https://img.shields.io/badge/License-MIT-green)
+
+## Screenshots
+
+**Data Analysis** — auto-detected target column, task type, and preprocessing pipeline
+![Data Analysis](docs/screenshots/01-data-analysis.png)
+
+**Model Comparison** — cross-validated accuracy, standard deviation, and training time across 4 models
+![Model Comparison](docs/screenshots/02-model-comparison.png)
+
+**Evaluation Results** — test/train scores, overfitting detection, and accuracy comparison chart
+![Evaluation](docs/screenshots/03-evaluation.png)
+
 ## Features
 
 - **Auto-Detection**: Automatically identifies the target column and task type (classification or regression)

SECURITY.md

@@ -0,0 +1,15 @@
+# Security Policy
+
+## Reporting a Vulnerability
+
+If you discover a security vulnerability in this project, please report it privately by emailing **eugen-goebel@hotmail.de**.
+
+Please do not file public GitHub issues for security vulnerabilities, as this could expose users to risk before a fix is available.
+
+## Response Time
+
+I aim to acknowledge reports within 7 days and provide an initial assessment within 14 days.
+
+## Supported Versions
+
+This is a portfolio project; only the latest commit on `main` is supported.