Refactored and moved all keys and configuration into .env files and provided samples

.vscode/launch.json

@@ -4,6 +4,17 @@
     // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
     "version": "0.2.0",
     "configurations": [
+        {
+            "name": "Launch Program",
+            "program": "${workspaceFolder}/retriever/index.js",
+            "request": "launch",
+            "skipFiles": [
+                "<node_internals>/**"
+            ],
+            "envFile": "${workspaceFolder}/retriever/.env", 
+            "cwd": "${workspaceFolder}/retriever/",
+            "type": "node"
+        },
         {
             "name": "Python Debugger: Current File",
             "type": "debugpy",
@@ -20,14 +31,14 @@
             "justMyCode": false,
             "args": [
                 "run",
-                "app/streamlit_app.py",
+                "rag_system/app/streamlit_app.py",
             ]
         },
         {
-            "name": "Python Debugger: main.py",
+            "name": "Python Debugger: crawler",
             "type": "debugpy",
             "request": "launch",
-            "program": "main.py",
+            "program": "rag_system/crawler.py",
             "console": "integratedTerminal",
             "justMyCode": false
         }