Add LearnHouse Deployment Isolation Toolkit and debugging tools

- Introduced comprehensive documentation for diagnosing and fixing deployment isolation issues between DEV and LIVE instances.
- Implemented enhanced debug API endpoints for deployment verification, URL hardcoding detection, cookie isolation testing, and session configuration checks.
- Created scripts for visual demonstration of cookie isolation, enhanced debugging deployment, and verification of NextAuth cookie isolation.
- Developed a master isolation verification script to run all isolation checks in sequence and summarize results.
- Added detailed README and environment variable guidelines for proper deployment isolation.

deploy-enhanced-debug.sh

@@ -0,0 +1,67 @@
+#!/bin/bash
+
+# Script to deploy enhanced isolation debugging tools
+# This script will update the debug endpoints on both DEV and LIVE deployments
+
+echo "===================================================================="
+echo "LearnHouse Enhanced Debug Tools Deployment"
+echo "===================================================================="
+
+# ANSI color codes
+GREEN='\033[0;32m'
+RED='\033[0;31m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+# Define git branches
+DEV_BRANCH="isolation-debug"
+MAIN_BRANCH="main"
+
+# Ensure we have the latest code
+echo -e "${BLUE}Fetching latest code...${NC}"
+git fetch origin
+current_branch=$(git rev-parse --abbrev-ref HEAD)
+
+# Create a new branch for our changes
+echo -e "${BLUE}Creating branch for debug tools...${NC}"
+git checkout -b $DEV_BRANCH
+
+# Check if the debug files exist
+if [ ! -f "apps/api/src/routers/debug_enhanced.py" ]; then
+    echo -e "${RED}Error: Enhanced debug module not found! Run the setup script first.${NC}"
+    git checkout $current_branch
+    exit 1
+fi
+
+# Stage and commit our changes
+echo -e "${BLUE}Committing changes...${NC}"
+git add apps/api/src/routers/debug_enhanced.py
+git add apps/api/src/router.py
+git add verify-enhanced-isolation.sh
+git add ENHANCED_DEBUG_TOOLS.md
+git commit -m "Add enhanced debug endpoints for deployment isolation troubleshooting"
+
+# Push to origin
+echo -e "${BLUE}Pushing changes to origin...${NC}"
+if git push -u origin $DEV_BRANCH; then
+    echo -e "${GREEN}Successfully pushed changes to origin/$DEV_BRANCH${NC}"
+else
+    echo -e "${RED}Failed to push changes. Please check your git configuration.${NC}"
+    git checkout $current_branch
+    exit 1
+fi
+
+echo ""
+echo "===================================================================="
+echo -e "${GREEN}Deployment preparation completed!${NC}"
+echo ""
+echo -e "To deploy these changes:"
+echo -e "1. Create a pull request from ${BLUE}$DEV_BRANCH${NC} to ${BLUE}$MAIN_BRANCH${NC}"
+echo -e "2. After review and merge, deploy to both environments"
+echo -e "3. Use ${BLUE}./verify-enhanced-isolation.sh${NC} to check isolation"
+echo ""
+echo -e "Documentation: See ${BLUE}ENHANCED_DEBUG_TOOLS.md${NC} for endpoint usage"
+echo "===================================================================="
+
+# Return to original branch
+git checkout $current_branch