docs: add README, LICENSE, and configure automated license headers

README.md

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+# Episteme Reader
+
+A native Android document reader application built with Kotlin and Jetpack Compose.
+
+![Episteme Reader](docs/feature_graphic.png)
+
+## Overview
+
+Episteme Reader is an offline-first application designed for reading various document formats. It leverages native Android technologies and C++ libraries to provide a performant reading experience with customization capabilities.
+
+## Features
+
+### Supported Formats
+*   **Documents:** PDF
+*   **E-books:** EPUB, MOBI, AZW3
+*   **Text:** MD, TXT, HTML
+
+### PDF Features
+*   **Viewing Modes:** Vertical Scroll and Paginated view.
+*   **Ink Annotations:** Draw directly on pages using Pen, Highlighter, and Eraser tools.
+*   **Text Annotations:** Add text notes anywhere on the page using system or custom fonts.
+
+### E-Book Features
+*   **Parsing:** Native parsing for MOBI/AZW3 via `libmobi` and EPUB via `Jsoup`.
+*   **Customization:** Adjust font size, line spacing, and margins.
+*   **Custom Fonts:** Support for importing user-provided font files (`.ttf`, `.otf`).
+
+### General
+*   **Text-to-Speech (TTS):** Read documents aloud using the system TTS engine.
+*   **File Management:** Built-in file browser and library organization.
+
+## Architecture
+
+*   **UI:** 100% Jetpack Compose (Material3).
+*   **Architecture:** MVVM with Unidirectional Data Flow.
+*   **Database:** Room (SQLite) for metadata and annotations.
+*   **PDF Engine:** `pdfium-android` (Native PDFium bindings).
+*   **Mobi Engine:** Custom JNI bindings to `libmobi`.
+
+## Building from Source
+
+1.  **Clone the repository:**
+    ```bash
+    git clone https://github.com/your-username/episteme-oss.git
+    cd episteme-oss
+    ```
+
+2.  **Build:**
+    Open in Android Studio and run the `ossDebug` variant.
+    ```bash
+    ./gradlew assembleOssDebug
+    ```
+
+## Open Source Libraries
+
+This project uses the following open-source libraries:
+
+*   [pdfium-android](https://github.com/barteksc/PdfiumAndroid)
+*   [libmobi](https://github.com/bfabiszewski/libmobi)
+*   [Coil](https://coil-kt.github.io/coil/)
+*   [Jsoup](https://jsoup.org/)
+*   [Flexmark](https://github.com/vsch/flexmark-java)
+
+## License
+
+This project is licensed under the **GNU Affero General Public License v3.0 (AGPL-3.0)**. See the [LICENSE](LICENSE) file for details.