Switch from venv to conda for environment management

- start.bat and start.sh now create conda env (paperdash, Python 3.11)
- README updated with conda setup instructions
- Fixes pyhwinfo installation issues on Python 3.12+

server/start.bat

@@ -1,20 +1,20 @@
 @echo off
 REM PaperDash Server Startup Script
-REM Creates venv if needed, installs dependencies, and starts the server
+REM Creates conda env if needed, installs dependencies, and starts the server
 
 setlocal
 
 cd /d "%~dp0"
 
-REM Create venv if it doesn't exist
-if not exist "venv" (
-    echo Creating virtual environment...
-    python -m venv venv
+REM Check if conda env exists
+if not exist "conda_env" (
+    echo Creating conda environment...
+    conda create -y -n paperdash python=3.11
+    call conda activate paperdash
+) else (
+    call conda activate paperdash
 )
 
-REM Activate venv
-call venv\Scripts\activate.bat
-
 REM Install dependencies
 echo Installing dependencies...
 pip install --upgrade pip

server/start.sh

@@ -1,20 +1,20 @@
 #!/bin/bash
 # PaperDash Server Startup Script
-# Creates venv if needed, installs dependencies, and starts the server
+# Creates conda env if needed, installs dependencies, and starts the server
 
 set -e
 
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 cd "$SCRIPT_DIR"
 
-# Create venv if it doesn't exist
-if [ ! -d "venv" ]; then
-    echo "Creating virtual environment..."
-    python3 -m venv venv
+# Check if conda env exists
+if ! conda env list | grep -q "paperdash"; then
+    echo "Creating conda environment..."
+    conda create -y -n paperdash python=3.11
 fi
 
-# Activate venv
-source venv/bin/activate
+# Activate conda env
+conda activate paperdash
 
 # Install dependencies
 echo "Installing dependencies..."