fix(setup): create & activate venv before installing dependencies in setupDeveloperPC.sh

Previously, setupDeveloperPC.sh for Linux/MacOS tried to install python packages
even if no virtual environment is active
It was causing to skip installation of packages leading to dependency issues

This commit
- checks if venv exists , if not than it creates it and activates it
- added .venv/ to gitignore to stop tracking it

Signed-off-by: neo-0007 <hrishikeshgohain123@gmail.com>

Author: neo-0007

.gitignore

@@ -11,5 +11,6 @@ git_hash.txt
 
 /.coverage
 venv/
+.venv/
 test.txt
 test.xml

SetupDeveloperPC.sh

@@ -21,6 +21,17 @@ ORIGINAL_DIR=$(pwd)
 # Change to the directory where the script resides
 cd "$(dirname "$0")" || exit
 
+# Create a local virtual environment if it doesn't exist
+if [ ! -d ".venv" ]; then
+    echo "Creating Python virtual environment..."
+    python3 -m venv .venv
+fi
+
+# Activate the virtual environment
+echo "Activating virtual environment..."
+# shellcheck disable=SC1091
+source .venv/bin/activate
+
 InstallDependencies() {
     echo "Updating package lists..."
     if command -v apt-get &> /dev/null; then