docs: reorganize project structure and update root README

Project Organization:
- Moved configuration files to project-config/ directory
- Moved documentation files to documentation/ directory
- Moved security reports to security/ directory
- Moved backup files to backup-config/ directory
- Created PROJECT_ORGANIZATION_SUMMARY.md documenting changes
- Updated all script references to new file locations

Root README Simplification:
- Replaced 715-line detailed README with 95-line structure guide

project-config/.gitignore

@@ -0,0 +1,335 @@
+# AITBC Monorepo ignore rules
+# Updated: 2026-03-18 - Security fixes for hardcoded passwords
+# Development files organized into dev/ subdirectories
+
+# ===================
+# Python
+# ===================
+__pycache__/
+*.pyc
+*.pyo
+*.pyd
+*.so
+.venv/
+*/.venv/
+venv/
+env/
+*.egg-info/
+*.egg
+.eggs/
+pip-wheel-metadata/
+.pytest_cache/
+.coverage
+htmlcov/
+.tox/
+.mypy_cache/
+.ruff_cache/
+
+# ===================
+# Environment Files (SECRETS - NEVER COMMIT)
+# ===================
+*.env
+.env.*
+!.env.example
+.env.local
+.env.*.local
+
+# ===================
+# Database & Data
+# ===================
+*.db
+*.sqlite
+*.sqlite3
+*.db-wal
+*.db-shm
+data/
+apps/blockchain-node/data/
+
+# ===================
+# Runtime Directories (System Standard)
+# ===================
+/var/lib/aitbc/
+/etc/aitbc/
+/var/log/aitbc/
+
+# ===================
+# Logs & Runtime
+# ===================
+*.log
+logs/
+*.pid
+*.seed
+
+# ===================
+# Secrets & Credentials
+# ===================
+*.pem
+*.key
+*.crt
+*.p12
+secrets/
+credentials/
+.secrets
+.gitea_token.sh
+keystore/
+
+# ===================
+# IDE & Editor
+# ===================
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# ===================
+# OS Files
+# ===================
+.DS_Store
+.DS_Store?
+._*
+Thumbs.db
+ehthumbs.db
+Desktop.ini
+
+# ===================
+# Build & Compiled
+# ===================
+build/
+dist/
+target/
+*.o
+*.a
+*.lib
+*.dll
+*.dylib
+
+# ===================
+# Secrets & Credentials (CRITICAL SECURITY)
+# ===================
+# ===================
+node_modules/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Password files (NEVER commit these)
+*.password
+*.pass
+.password.*
+keystore/.password
+keystore/.password.*
+
+# Private keys and sensitive files
+*_private_key.txt
+*_private_key.json
+private_key.*
+*.private
+
+# ===================
+# Backup Files (organized)
+# ===================
+backup/**/*.tmp
+backup/**/*.temp
+backup/**/.DS_Store
+backup/updates/*.log
+
+# Large backup files (exceed GitHub size limits)
+backup/updates/*.tar.gz
+backup/updates/*.zip
+backup/updates/*.tar.bz2
+
+# Application backup archives
+backup/explorer_backup_*.tar.gz
+backup/*_backup_*.tar.gz
+backup/*_backup_*.zip
+
+# Backup documentation and indexes
+backup/BACKUP_INDEX.md
+backup/*.md
+backup/README.md
+
+# ===================
+# Temporary Files
+# ===================
+tmp/
+temp/
+*.tmp
+*.temp
+*.bak
+*.backup
+
+# ===================
+# Windsurf IDE
+# ===================
+.snapshots/
+
+# ===================
+# Wallet Files (contain private keys)
+# ===================
+# Specific wallet and private key JSON files (contain private keys)
+# ===================
+# Project Specific
+# ===================
+# Coordinator database
+apps/coordinator-api/src/*.db
+
+# Blockchain node data
+apps/blockchain-node/data/
+
+# Explorer build artifacts
+apps/explorer-web/dist/
+
+# Solidity build artifacts
+packages/solidity/aitbc-token/typechain-types/
+packages/solidity/aitbc-token/artifacts/
+packages/solidity/aitbc-token/cache/
+
+# Local test fixtures and E2E testing
+tests/e2e/fixtures/home/**/.aitbc/cache/
+tests/e2e/fixtures/home/**/.aitbc/logs/
+tests/e2e/fixtures/home/**/.aitbc/tmp/
+tests/e2e/fixtures/home/**/.aitbc/*.log
+tests/e2e/fixtures/home/**/.aitbc/*.pid
+tests/e2e/fixtures/home/**/.aitbc/*.sock
+
+# Keep fixture structure but exclude generated content
+!tests/e2e/fixtures/home/
+!tests/e2e/fixtures/home/**/
+!tests/e2e/fixtures/home/**/.aitbc/
+!tests/e2e/fixtures/home/**/.aitbc/wallets/
+!tests/e2e/fixtures/home/**/.aitbc/config/
+
+# Local test data
+tests/fixtures/generated/
+
+# GPU miner local configs
+scripts/gpu/*.local.py
+
+# Deployment secrets (CRITICAL SECURITY)
+scripts/deploy/*.secret.*
+infra/nginx/*.local.conf
+
+# ===================
+# Documentation
+# ===================
+# Infrastructure docs (contains sensitive network info)
+docs/infrastructure.md
+# Workflow files (personal, change frequently)
+docs/1_project/3_currenttask.md
+docs/1_project/4_currentissue.md
+
+# ===================
+# Website (local deployment details)
+# ===================
+website/README.md
+website/aitbc-proxy.conf
+
+# ===================
+# Local Config & Secrets
+# ===================
+.aitbc.yaml
+apps/coordinator-api/.env
+
+# ===================
+# Deploy Scripts (hardcoded local paths & IPs)
+# ===================
+scripts/deploy/*
+!scripts/deploy/*.example
+scripts/gpu/*
+!scripts/gpu/*.example
+scripts/service/*
+
+# ===================
+# Infra Configs (production IPs & secrets)
+# ===================
+infra/nginx/nginx-aitbc*.conf
+infra/helm/values/prod/
+infra/helm/values/prod.yaml
+
+# ===================
+# Node.js
+# ===================
+node_modules/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Build artifacts
+build/
+dist/
+target/
+
+# System files
+*.pid
+*.seed
+*.pid.lock
+
+# Coverage reports
+htmlcov/
+.coverage
+.coverage.*
+coverage.xml
+*.cover
+.hypothesis/
+.pytest_cache/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# pyenv
+.python-version
+
+# Environments
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# ===================
+# AITBC specific (CRITICAL SECURITY)
+# ===================
+data/
+logs/
+*.db
+*.sqlite
+wallet*.json
+certificates/
+
+# Guardian contract databases (contain spending limits)
+guardian_contracts/
+*.guardian.db
+
+# Multi-chain wallet data
+.wallets/
+.wallets/*
+
+# Agent protocol data
+.agent_data/
+.agent_data/*
+
+# Operational and setup files
+results/
+tools/
+data/
+*.db
+*.log
+production/data/
+production/logs/
+config/
+*.env
+api_keys.txt
+*.yaml
+!*.example
+logs/
+production/logs/
+*.log
+*.log.*
+production/data/
+production/logs/
+dev/cache/logs/
+dev/test-nodes/*/data/
+backups/*/config/
+backups/*/logs/