Set up project scaffolding: GitHub Actions workflows, issue templates, changelog, contributing guidelines, MIT license, and README

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug
+about: Report a bug
+title: '[Bug] '
+labels: bug
+assignees: ''
+---
+
+**Description**
+Briefly: what is the problem?
+
+**Steps to reproduce**
+1. …
+2. …
+
+**Expected**
+What should happen?
+
+**Actual**
+What happens instead?
+
+**Environment**
+- OS:
+- Java version:
+- Terminal (e.g. PowerShell, CMD, IDE):
+
+**Optional: code snippet**
+```java
+// minimal example
+```

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: true
+contact_links:
+  - name: Question / Discussion
+    url: https://github.com/jakubbbdev/terminal-ui/discussions
+    about: For questions and ideas without a concrete bug/feature ticket

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature
+about: Suggest an idea or enhancement
+title: ''
+labels: enhancement
+assignees: ''
+---
+
+**Problem / motivation**
+What is this about? What are you missing right now?
+
+**Proposal**
+What should be added or changed?
+
+**Alternatives**
+Have you considered other solutions?
+
+**Additional context**
+Screenshots, examples, links—feel free to attach.

.github/PULL_REQUEST_TEMPLATE.md

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+## Description
+
+<!-- Briefly: what does this PR do? -->
+
+## Type of change
+
+- [ ] Bug fix
+- [ ] New feature
+- [ ] Refactoring / docs
+- [ ] Other
+
+## Checklist
+
+- [ ] `./gradlew build` passes locally
+- [ ] Relevant tests updated or added (if applicable)

.github/dependabot.yml

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+# Dependabot: automatic PRs for dependency updates
+# https://docs.github.com/en/code-security/dependabot
+
+version: 2
+updates:
+  # Gradle dependencies (build.gradle.kts, gradle-wrapper)
+  - package-ecosystem: "gradle"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+    open-pull-requests-limit: 5
+    labels: ["dependencies"]
+    commit-message:
+      prefix: "deps"
+
+  # GitHub Actions (*.yml in .github/workflows)
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+    labels: ["dependencies", "github-actions"]
+    commit-message:
+      prefix: "ci"

.github/workflows/codeql.yml

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+# CodeQL: static security analysis (free for public repos).
+name: CodeQL
+
+on:
+  push:
+    branches: [ main, master ]
+  pull_request:
+    branches: [ main, master ]
+  schedule:
+    - cron: '0 6 * * 1'
+
+jobs:
+  analyze:
+    runs-on: ubuntu-latest
+    permissions:
+      security-events: write
+      actions: read
+      contents: read
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: java
+
+      - name: Build (for CodeQL)
+        run: |
+          chmod +x gradlew
+          ./gradlew compileJava --no-daemon
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3

.github/workflows/dependency-review.yml

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+# On PRs: checks dependency changes for known vulnerabilities.
+# Useful when Dependabot or manual dependency updates are used in PRs.
+
+name: Dependency Review
+
+on:
+  pull_request:
+    branches: [main, master]
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  review:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Dependency Review
+        uses: actions/dependency-review-action@v4

.github/workflows/release.yml

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+# On push of a version tag (e.g. v1.0.0): build, create GitHub Release, upload JARs.
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 21
+          cache: gradle
+
+      - run: chmod +x gradlew && ./gradlew build --no-daemon
+
+      - name: Create Release
+        uses: softprops/action-gh-release@v2
+        with:
+          generate_release_notes: true
+          files: build/libs/*.jar
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

CHANGELOG.md

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+# Changelog
+
+Project changes are documented here.
+
+Format: [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
+
+## [Unreleased]
+
+### Added
+- (New features go here)
+
+### Changed
+- (Changes go here)
+
+### Fixed
+- (Bug fixes go here)

CONTRIBUTING.md

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+# Contributing
+
+Contributions are welcome.
+
+## Process
+
+1. Fork the repo and create a branch (e.g. `feature/xyz` or `fix/abc`).
+2. Make your changes and test locally:
+   ```bash
+   ./gradlew build
+   ```
+3. Open a pull request against `main`/`master` (fill in the PR template).
+4. CI must pass; address review feedback as needed.
+
+## Code
+
+- Java 21; follow the existing code style.
+- Prefer adding tests in `src/test/` for new functionality.
+
+## Questions
+
+For questions and general discussion: [Discussions](https://github.com/jakubbbdev/terminal-ui/discussions).

LICENSE

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+MIT License
+
+Copyright (c) 2026 terminal-ui contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# terminal-ui
+
+Java library for terminal UI: tables, rules, colors, prompts, menus, SelectList, pager, and more. Fluent API, ANSI support, testable.
+
+[![CI](https://github.com/jakubbbdev/terminal-ui/actions/workflows/ci.yml/badge.svg)](https://github.com/jakubbbdev/terminal-ui/actions/workflows/ci.yml)
+
+## Requirements
+
+- **Java 21**
+- **Gradle 9.x** (wrapper included)
+
+## Build & Test
+
+```bash
+./gradlew build
+```
+
+Run tests:
+
+```bash
+./gradlew test
+```
+
+Demo (non-interactive):
+
+```bash
+./gradlew run
+```
+
+Interactive demo (best run in a real terminal):
+
+```bash
+./gradlew runDemo2
+```
+
+## Usage (excerpt)
+
+```java
+import dev.jakub.terminal.Terminal;
+import dev.jakub.terminal.core.Color;
+
+// Colored text
+Terminal.print("Hello").color(Color.CYAN).bold().println();
+
+// Table
+Terminal.table()
+    .header("A", "B")
+    .row("1", "2")
+    .row("3", "4")
+    .print(System.out);
+
+// Prompt
+String name = Terminal.prompt("Name: ").ask();
+
+// Menu
+String choice = Terminal.menu()
+    .title("Environment")
+    .option("Dev").option("Prod")
+    .select();
+```
+
+## License
+
+See [LICENSE](LICENSE).