added pool rotation to chromedriver pool

.env.example

@@ -3,46 +3,38 @@
 # This file configures the behavior of the WebScraper application
 # Copy to .env and adjust values as needed
 
-# ===== ECONOMIC DATA =====
-# Start date for economic event scraping
+OPENFIGI_API_KEY=
+
+# Economic calendar start (usually the earliest available on finanzen.net)
 ECONOMIC_START_DATE=2007-02-13
 
-# How far into the future to look ahead for economic events (in months)
-ECONOMIC_LOOKAHEAD_MONTHS=3
-
-# ===== CORPORATE DATA =====
-# Start date for corporate earnings/data scraping
+# Corporate earnings & price history start
 CORPORATE_START_DATE=2010-01-01
 
-# ===== PERFORMANCE & CONCURRENCY =====
-# Maximum number of parallel ChromeDriver instances
-# Higher = more concurrent tasks, but higher resource usage
-MAX_PARALLEL_INSTANCES=3
+# How far into the future we scrape economic events (in months)
+ECONOMIC_LOOKAHEAD_MONTHS=3
 
-# Maximum tasks per ChromeDriver instance before recycling
-# 0 = unlimited (instance lives for entire application runtime)
-MAX_TASKS_PER_INSTANCE=0
+# Maximum number of parallel scraping tasks (default: 10)
+MAX_PARALLEL_TASKS=10
 
 # ===== VPN ROTATION (ProtonVPN Integration) =====
 # Enable automatic VPN rotation between sessions?
 # If false, all traffic goes through system without VPN tunneling
-ENABLE_VPN_ROTATION=false
-
-# Comma-separated list of ProtonVPN servers to rotate through
-# Examples:
-#   "US-Free#1,US-Free#2,UK-Free#1"
-#   "US,UK,JP,DE,NL"
-# NOTE: Must have ENABLE_VPN_ROTATION=true for this to take effect
-VPN_SERVERS=
+ENABLE_VPN_ROTATION=true
 
 # Number of tasks per VPN session before rotating to new server/IP
 # 0 = rotate between economic and corporate phases (one phase = one IP)
 # 5 = rotate every 5 tasks
 # NOTE: Must have ENABLE_VPN_ROTATION=true for this to take effect
-TASKS_PER_VPN_SESSION=0
+TASKS_PER_VPN_SESSION=50
 
 # ===== LOGGING =====
 # Set via RUST_LOG environment variable:
 #   RUST_LOG=info cargo run
 #   RUST_LOG=debug cargo run
 # Leave empty or unset for default logging level
+
+
+MAX_REQUESTS_PER_SESSION=25
+MIN_REQUEST_INTERVAL_MS=300
+MAX_RETRY_ATTEMPTS=3