docs: consolidate and update all documentation for launch readiness

- Rewrite root README.md with proper project overview, tech stack, and repo structure
- Remove duplicate CLAUDE.md files (root, onchain, ponder) — AGENTS.md is the standard
- Update HARBERG.md to reflect Stage 1 completion and Stage 2 evolution
- Delete stale onchain/testing_todos.md (all high-priority items completed)
- Update VERSION_VALIDATION.md for VERSION=2
- Trim root AGENTS.md: replace Docker duplication with docs/docker.md reference
- Trim onchain/AGENTS.md (129→71 lines): reference TECHNICAL_APPENDIX for formulas
- Trim web-app/AGENTS.md (278→55 lines): remove internal API docs, keep architecture
- Rewrite onchain/README.md: add contract table, deployment addresses, analysis links
- Trim services/ponder/README.md: remove stale subgraph comparison
- Add otterscan to docs/docker.md service topology
- Update TECHNICAL_APPENDIX.md references

Net: -388 lines across documentation.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

TECHNICAL_APPENDIX.md

@@ -1,6 +1,6 @@
 # Technical Appendix
 
-This document provides detailed technical analysis and implementation details for the KRAIKEN protocol's core innovations. For a high-level overview, see AGENTS.md.
+This document provides detailed technical analysis and implementation details for the KRAIKEN protocol's core innovations. For a high-level overview, see [README.md](README.md).
 
 ## Asymmetric Slippage Strategy
 
@@ -152,5 +152,6 @@ The binary step avoids the AW 40-80 kill zone where intermediate parameters are
 - **Scenario Visualization**: Tools for understanding liquidity dynamics
 
 ### Related Documentation
-- **AGENTS.md**: High-level overview and development guidance
+- **README.md**: Project overview
+- **AGENTS.md**: Development and operational guidance
 - **`/onchain/analysis/README.md`**: Detailed analysis tool usage