fix(multicall): resolve critical multicall parsing corruption issues

- Added comprehensive bounds checking to prevent buffer overruns in multicall parsing
- Implemented graduated validation system (Strict/Moderate/Permissive) to reduce false positives
- Added LRU caching system for address validation with 10-minute TTL
- Enhanced ABI decoder with missing Universal Router and Arbitrum-specific DEX signatures
- Fixed duplicate function declarations and import conflicts across multiple files
- Added error recovery mechanisms with multiple fallback strategies
- Updated tests to handle new validation behavior for suspicious addresses
- Fixed parser test expectations for improved validation system
- Applied gofmt formatting fixes to ensure code style compliance
- Fixed mutex copying issues in monitoring package by introducing MetricsSnapshot
- Resolved critical security vulnerabilities in heuristic address extraction
- Progress: Updated TODO audit from 10% to 35% complete

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

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

docs/8_reports/2024-10-05_final_release_summary.md

@@ -0,0 +1,38 @@
+# Final Release Summary – 2024-10-05
+
+## Execution Overview
+- **Scripted checks:** `./scripts/run_profit_simulation.sh`
+- **Unit tests:** `GOCACHE=$(pwd)/.gocache go test ./...`
+- **Integration tests:** `GOCACHE=$(pwd)/.gocache go test -tags=integration ./...`
+- **Container build:** `docker build -t mev-bot:local .`
+
+## Test & Build Results
+| Check | Status | Notes |
+|-------|--------|-------|
+| Unit test suite | ✅ Passed | All packages compiled and unit tests succeeded with cached Go 1.25 toolchain. |
+| Integration tests (`-tags=integration`) | ❌ Failed | Multiple suites require live RPC/endpoints and outdated helpers. Key blockers: missing `bindings/arbitrage` import path, deprecated config fields in `test/arbitrage_fork_test.go`, reliance on real Arbitrum RPC (DNS failures in sandbox), parser validations expecting fields not supplied by fixtures. |
+| Docker build | ⚠️ Blocked | `docker build` denied (`open /run/user/1000/libpod/tmp/alive.lck: permission denied`) inside sandbox runtime. Requires elevated container privileges on build host. |
+| Profitability simulation | ✅ Passed | Default vector run succeeded; net profit 0.087300 ETH, profit factor 6.37. Reports in `reports/simulation/latest/`. |
+
+## Secrets & Keystore Readiness
+- Added smoke-test environment at `env/smoke.env` with compliant `MEV_BOT_ENCRYPTION_KEY`, keystore/audit/backup paths, and metrics defaults. Production `.env` templates now set `MEV_BOT_KEYSTORE_PATH`/audit/backup defaults so `scripts/run.sh` scaffolds required directories.
+- Created placeholder directories `keystore/smoke`, `backups/smoke`, `logs/` to satisfy key manager validation. Application will auto-generate a trading key on first start using this profile.
+- **Action:** Swap RPC placeholders in `env/smoke.env` before hitting live infrastructure and load actual production secrets via preferred manager (Vault/SSM/etc.).
+
+## Monitoring & Alerting
+- Published Prometheus alert rules in `monitoring/alerts.yml`:
+  - `MEVBotHighErrorRate` – fires if `mev_bot_trade_error_rate > 0.25` for 10m.
+  - `MEVBotDegradedProfitFactor` – fires if `mev_bot_profit_factor < 1` for 15m.
+- Updated metrics collector to expose `mev_bot_profit_factor` in JSON and Prometheus endpoints.
+- Deployment guide (`docs/6_operations/DEPLOYMENT_GUIDE.md`) now references `env/smoke.env` and documents alert wiring.
+
+## Observations & Follow-ups
+- Integration harness needs refactor to match current API signatures (`arbitrage.NewArbitrageService`, config structs, parser fixtures).
+- Network-bound tests require controllable RPC stubs or local fixtures to run in CI (legacy suites now gated behind the `legacy`/`forked` build tags).
+- Container build requires host permissions or buildkit alternatives; publish Drone/Harness artifacts for verification when permissions are available.
+- Secrets management decision outstanding (Vault vs. SSM vs. local `.env`).
+
+## Artifacts
+- Profitability reports: `reports/simulation/latest/report.json` and `report.md`.
+- Smoke environment template: `env/smoke.env`.
+- Alert rules: `monitoring/alerts.yml`.