feat: Add models setup script for ASR, TTS, and MT with system dependencies check

scripts/models_setup.sh

@@ -0,0 +1,78 @@
+#!/bin/bash
+
+# Exit on error
+set -e
+
+echo "🏗️  Creating directory structure..."
+PROJECT_ROOT=$(pwd)
+mkdir -p ./models/asr ./models/tts ./models/mt
+
+# --- 1. WHISPER.CPP SETUP (ASR) ---
+echo "📥 Setting up Whisper.cpp (ASR)..."
+cd "$PROJECT_ROOT/models/asr"
+
+if [ ! -d "whisper.cpp" ]; then
+    git clone https://github.com/ggerganov/whisper.cpp.git
+fi
+
+cd whisper.cpp
+# Download the tiny model using their helper script
+bash ./models/download-ggml-model.sh tiny
+
+echo "🛠️  Building whisper.cpp..."
+cmake -B build
+cmake --build build -j --config Release
+
+# Verify build
+if [ -f "./build/bin/whisper-cli" ]; then
+    echo "✅ Whisper.cpp built successfully."
+else
+    echo "❌ Whisper.cpp build failed."
+    exit 1
+fi
+
+# --- 2. PIPER VOICES (TTS) ---
+echo "📥 Downloading Piper Voice models (TTS)..."
+cd "$PROJECT_ROOT/models/tts"
+
+# French Voice (Siwis Medium)
+curl -L https://huggingface.co/rhasspy/piper-voices/resolve/main/fr/fr_FR/siwis/medium/fr_FR-siwis-medium.onnx -o fr_FR-siwis-medium.onnx
+curl -L https://huggingface.co/rhasspy/piper-voices/resolve/main/fr/fr_FR/siwis/medium/fr_FR-siwis-medium.onnx.json -o fr_FR-siwis-medium.onnx.json
+
+# English Voice (Bryce Medium)
+curl -L https://huggingface.co/rhasspy/piper-voices/resolve/main/en/en_US/bryce/medium/en_US-bryce-medium.onnx -o en_US-bryce-medium.onnx
+curl -L https://huggingface.co/rhasspy/piper-voices/resolve/main/en/en_US/bryce/medium/en_US-bryce-medium.onnx.json -o en_US-bryce-medium.onnx.json
+
+# --- 3. ARGOS TRANSLATE (MT) ---
+echo "🤖 Installing Argos Language Packs (MT)..."
+# Ensure we are in the backend venv if it exists
+if [ -d "$PROJECT_ROOT/backend/venv" ]; then
+    source "$PROJECT_ROOT/backend/venv/bin/activate"
+fi
+
+pip install argostranslate
+
+python3 << EOF
+import argostranslate.package
+print("Updating Argos package index...")
+argostranslate.package.update_package_index()
+available = argostranslate.package.get_available_packages()
+
+pairs = [("en", "fr"), ("fr", "en")]
+for f, t in pairs:
+    print(f"Installing {f} -> {t}...")
+    pkg = next(filter(lambda x: x.from_code == f and x.to_code == t, available))
+    argostranslate.package.install_from_path(pkg.download())
+EOF
+
+# --- 4. SYSTEM DEPENDENCIES CHECK ---
+echo "🔍 Checking system dependencies..."
+if ! command -v ffmpeg &> /dev/null; then
+    echo "⚠️  WARNING: FFmpeg not found. Please install it: sudo apt install ffmpeg"
+else
+    echo "✅ FFmpeg is installed."
+fi
+
+echo "-----------------------------------------------"
+echo "✅ Setup Complete! All models prepared."
+echo "🚀 You can now start the backend and frontend."