Improve dev startup: model download script, loading state in health check, faster polling

Agent-Logs-Url: https://github.com/JezzWTF/vibepod/sessions/3c05c740-b0a3-497d-88f1-dfa63121424d

Co-authored-by: LyAhn <27559362+LyAhn@users.noreply.github.com>

podcast-forge/server/start.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+# VibePod TTS server startup script
+# Usage: ./start.sh [uvicorn options]
+#
+# Downloads the model on first run, then starts the FastAPI server.
+# Set HF_TOKEN env var if a HuggingFace access token is required.
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+cd "$SCRIPT_DIR"
+
+echo "================================================"
+echo "  VibePod TTS Server"
+echo "================================================"
+
+# 1. Ensure Python deps are available
+if ! python -c "import fastapi" &>/dev/null; then
+  echo "Installing Python dependencies..."
+  pip install -r requirements.txt
+fi
+
+# 2. Download model if not already cached
+echo ""
+echo "--> Checking model cache..."
+python download_model.py
+
+# 3. Start the server
+echo ""
+echo "--> Starting uvicorn on http://0.0.0.0:8000"
+exec uvicorn vibevoice_server:app \
+  --host 0.0.0.0 \
+  --port 8000 \
+  --log-level info \
+  "$@"