Flatten repo structure: move crawler/ to root, remove vqa/ and immoweb/

The crawler subdirectory was the only active project. Moving it to the
repo root simplifies paths and removes the unnecessary nesting. The
vqa/ and immoweb/ directories were legacy/unused and have been removed.

Updated .drone.yml, .gitignore, .claude/ docs, and skills to reflect
the new flat structure.

frontend/start.sh

@@ -0,0 +1,77 @@
+#!/usr/bin/env bash
+
+# This script is used to start the npm dev server along with a caddy proxy running a self signed TLS cert
+# This is needed as the app uses external auth that requires running on https
+
+# Usage:
+# 1. Set $dev_hostname to the hostname of your dev server (e.g. devvm.viktorbarzin.lan) in /ets/hosts (or external dns to resolve to)
+# 2. Run the script
+# 3. Start npm server in a different tab: npm run dev -- --host
+# 4. Open a browser and navigate to https://$dev_hostname:443
+
+# Now your app would be accessible via https
+# App requests to the backend API can be done via https://$dev_hostname/api
+
+set -eux
+
+# Kill any existing caddy servers
+sudo pkill -f 'caddy'
+
+# Fail if caddy is not installed
+if ! command -v caddy &> /dev/null; then
+  echo "Error: caddy is not installed. Please install caddy and try again"
+   exit 1
+fi
+
+pwd=$PWD
+
+caddy_dir="$pwd/caddy_dev"
+dev_crt_path="$caddy_dir/certs/dev.crt"
+dev_key_path="$caddy_dir/certs/dev.key"
+
+# throw if .env does not exist
+if [ ! -f "$pwd/.env" ]; then
+  echo "Error: .env file not found. Please use the sample env file to populate the .env file" 
+  exit 1
+fi
+source "$pwd/.env" # get env for dev host
+dev_hostname=$DEV_HOST
+frontend_service="$FRONTEND_SERVICE" 
+backend_service="$BACKEND_SERVICE" 
+
+# Create self signed certs if they don't exist already
+if [ ! -f "$caddy_dir/certs/dev.crt" ] || [ ! -f "$caddy_dir/certs/dev.key" ]; then
+  echo
+  echo "Creating self-signed certificates..."
+  mkdir -p $caddy_dir/certs
+  openssl req -x509 -newkey rsa:4096 -keyout $dev_key_path -out $dev_crt_path -days 365 -nodes -subj "/CN=$dev_hostname"
+  echo "Certificates created."
+fi
+
+# Create a caddyfile for the dev environment if it doesn't exist
+if [ ! -f "$caddy_dir/Caddyfile" ]; then
+  echo "Creating a caddyfile for the dev environment..."
+cat <<-EOF > $caddy_dir/Caddyfile
+# We need https for the frontend to enable auth with external oidc
+https://$dev_hostname:443 {
+    tls "$dev_crt_path" "$dev_key_path"
+    reverse_proxy http://$frontend_service
+}
+
+# We need https for the backend so that the frontend can send secure requests to the backend
+https://$dev_hostname:443/api/* {
+    tls "$dev_crt_path" "$dev_key_path"
+    reverse_proxy http://$backend_service
+}
+EOF
+
+  echo "Caddyfile created."
+else
+    echo "Caddyfile already exists. Skipping creation."
+fi
+
+# Start the caddy proxy with the self signed certs
+sudo caddy start --config "$caddy_dir/Caddyfile" # caddy run for interactive session
+# Start the npm dev server
+npm run dev -- --host
+