suggested improvements for the project

SUGGESTED_FEATURES.md

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+# 💡 Suggested Features
+
+This document details new functional capabilities and user-facing features proposed for future versions of **Cipher Master**.
+
+---
+
+## 1. Core Cipher & Engine Expansion
+* **New Ciphers**:
+  * **Playfair Cipher**: Digraph substitution using a 5x5 key matrix.
+  * **Enigma Machine Emulator**: Multi-rotor simulation with configurable reflector settings.
+  * **Baconian Cipher**: Steganographic binary substitution ($A/B$ character mapping).
+  * **Columnar Transposition**: Multi-stage keyed matrix transposition.
+* **Multi-Stage / Chained Encryption**: Allow users to stack multiple ciphers sequentially (e.g., Caesar Shift followed by Rail Fence).
+
+## 2. Interactive GUI & User Experience
+* **Built-in Decryption Workspace**: Interactive scratchpad inside the application window with frequency analysis charts, letter counts, and live decoding textboxes.
+* **Interactive Runes Map**: Clickable Elder Futhark keyboard/reference panel for visual translation.
+* **Custom Output Paths**: Allow users to select custom output folders instead of defaulting strictly to the Desktop directory.
+
+## 3. Game & Challenge Modes
+* **Timed Challenge Mode**: In-app countdown timer with a scoring metric based on completion speed and hint usage.
+* **Custom Quote Input**: GUI text field allowing users to input their own custom plaintext passage directly before generating files.

SUGGESTED_INTEGRATIONS.md

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+# 🔗 Suggested Integrations
+
+This document outlines proposed integrations with external services, tools, and platforms to extend the functionality and ecosystem of **Cipher Master**.
+
+---
+
+## 1. Cloud & Synchronization Services
+* **GitHub Gist Sync**: Allow users to publish generated challenges or solution sheets directly to a private/public GitHub Gist with one click.
+* **Discord Webhook Notifications**: Option to dispatch newly generated cipher challenges directly into a dedicated Discord channel for community puzzle solving.
+
+## 2. Expanded AI & Model Providers
+* **Ollama Model Selector**: Allow users to select alternate local LLM models (e.g., `mistral`, `phi3`, `gemma`) directly from the GUI settings panel.
+* **OpenAI / Anthropic API Option**: Optional fallback API key input for cloud-hosted LLM inference when local resources (Ollama) are insufficient or unavailable.
+
+## 3. Educational & Cryptanalysis Tools
+* **CyberChef Deep Link / Export**: Export cipher matrices directly to CyberChef recipes for step-by-step cryptanalysis visualization.
+* **CTF (Capture The Flag) Exporters**: Format output files into standard CTF platform formats (e.g., CTFd, HackTheBox puzzle structures).
+
+## 4. Hardware & Peripherals
+* **Custom Printed Output (Thermal Printers)**: Direct USB/Bluetooth printer integration to print cryptographic escape room physical receipts/slips.

SUGGESTED_UPGRADES.md

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+# ⚡ Suggested Upgrades
+
+This document covers architectural, performance, security, and infrastructure enhancements for **Cipher Master**.
+
+---
+
+## 1. Backend & Performance Enhancements
+* **Async IO File Generation**: Migrate file writing operations in `src-tauri/src/lib.rs` to asynchronous `tokio::fs` tasks to keep the UI fully responsive during disk operations.
+* **Non-Blocking AI Requests**: Implement async client connections for Ollama calls with configured timeout thresholds to prevent UI hangs on slow model initializations.
+
+## 2. Cryptographic & Generator Quality
+* **Secure Randomness (`rand::rngs::OsRng`)**: Upgrade standard PRNG key selection to cryptographically secure random number generators for key generation.
+* **Index & Vowels Cryptanalysis Metrics**: Expand the `cipher_hint.txt` generator to include standard Index of Coincidence ($IC$) metrics and bigram frequency counts.
+
+## 3. Quality Assurance & CI/CD
+* **Rust Unit Testing Suite**: Expand automated test coverage in `src-tauri` for each cipher engine module (verifying round-trip `encode` and `decode` results).
+* **Automated GUI Testing**: Introduce Playwright / WebDriver testing for Tauri frontend IPC commands in GitHub Actions.