refactor: move all remaining files to orig/ directory

Completed clean root directory structure:
- Root now contains only: .git, .env, docs/, orig/
- Moved all remaining files and directories to orig/:
  - Config files (.claude, .dockerignore, .drone.yml, etc.)
  - All .env variants (except active .env)
  - Git config (.gitconfig, .github, .gitignore, etc.)
  - Tool configs (.golangci.yml, .revive.toml, etc.)
  - Documentation (*.md files, @prompts)
  - Build files (Dockerfiles, Makefile, go.mod, go.sum)
  - Docker compose files
  - All source directories (scripts, tests, tools, etc.)
  - Runtime directories (logs, monitoring, reports)
  - Dependency files (node_modules, lib, cache)
  - Special files (--delete)

- Removed empty runtime directories (bin/, data/)

V2 structure is now clean:
- docs/planning/ - V2 planning documents
- orig/ - Complete V1 codebase preserved
- .env - Active environment config (not in git)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.gitignore

@@ -1,86 +0,0 @@
-# Binaries
-bin/
-mev-bot
-mev-bot-test
-ci-agent-bridge
-
-# Configuration files that might contain sensitive information
-config/local.yaml
-config/secrets.yaml
-config/providers.yaml
-config/*_production.yaml
-config/*_staging.yaml
-.env
-.env.local
-.env.production
-.env.staging
-.env.development
-.env.test
-
-# Salt file for key derivation (CRITICAL: Must not be committed)
-keystore/.salt
-
-# Go workspace and modules
-go.work
-go.work.sum
-
-# Test coverage files
-coverage.txt
-coverage.html
-coverage.out
-
-# IDE files
-.vscode/
-.idea/
-*.swp
-*.swo
-*~
-
-# OS generated files
-.DS_Store
-.DS_Store?
-._*
-.Spotlight-V100
-.Trashes
-ehthumbs.db
-Thumbs.db
-
-# Log files and backups
-*.log
-logs/*.log
-logs/*.bak
-logs/*.jsonl
-
-# Database files
-*.db
-*.sqlite
-*.sqlite3
-
-# Security and keystore files
-keystore/
-*.key
-*.pem
-*.p12
-
-# Data and temporary directories
-data/
-tmp/
-temp/
-vendor/
-backup/
-backups/
-artifacts/
-
-# Archive files
-*.tar.gz
-*.zip
-*.tar
-
-# Performance profiles
-*.prof
-*.out
-
-# Documentation builds
-docs/_build/
-.gocache/
-.gomodcache/