feat: create v2-prep branch with comprehensive planning

Restructured project for V2 refactor:

**Structure Changes:**
- Moved all V1 code to orig/ folder (preserved with git mv)
- Created docs/planning/ directory
- Added orig/README_V1.md explaining V1 preservation

**Planning Documents:**
- 00_V2_MASTER_PLAN.md: Complete architecture overview
  - Executive summary of critical V1 issues
  - High-level component architecture diagrams
  - 5-phase implementation roadmap
  - Success metrics and risk mitigation

- 07_TASK_BREAKDOWN.md: Atomic task breakdown
  - 99+ hours of detailed tasks
  - Every task < 2 hours (atomic)
  - Clear dependencies and success criteria
  - Organized by implementation phase

**V2 Key Improvements:**
- Per-exchange parsers (factory pattern)
- Multi-layer strict validation
- Multi-index pool cache
- Background validation pipeline
- Comprehensive observability

**Critical Issues Addressed:**
- Zero address tokens (strict validation + cache enrichment)
- Parsing accuracy (protocol-specific parsers)
- No audit trail (background validation channel)
- Inefficient lookups (multi-index cache)
- Stats disconnection (event-driven metrics)

Next Steps:
1. Review planning documents
2. Begin Phase 1: Foundation (P1-001 through P1-010)
3. Implement parsers in Phase 2
4. Build cache system in Phase 3
5. Add validation pipeline in Phase 4
6. Migrate and test in Phase 5

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

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

scripts/mev-bot-auto-update.service

@@ -0,0 +1,27 @@
+[Unit]
+Description=MEV Bot Auto-Update Service
+After=network-online.target docker.service
+Wants=network-online.target
+
+[Service]
+Type=oneshot
+WorkingDirectory=/docker/mev-beta
+ExecStart=/docker/mev-beta/scripts/auto-update.sh
+StandardOutput=append:/docker/mev-beta/logs/auto-update.log
+StandardError=append:/docker/mev-beta/logs/auto-update.log
+
+# Environment variables (optional)
+# Environment="WEBHOOK_URL=https://your-webhook-url"
+# Environment="GIT_BRANCH=master"
+# Environment="GIT_REMOTE=origin"
+
+# Security settings
+User=root
+Group=docker
+
+# Prevent service from failing if update fails
+# This ensures the timer continues to run
+SuccessExitStatus=0 1
+
+[Install]
+WantedBy=multi-user.target