chore(security): enhance environment configuration, CI workflows, and wallet daemon with security improvements

- Restructure .env.example with security-focused documentation, service-specific environment file references, and AWS Secrets Manager integration
- Update CLI tests workflow to single Python 3.13 version, add pytest-mock dependency, and consolidate test execution with coverage
- Add comprehensive security validation to package publishing workflow with manual approval gates, secret scanning, and release

contracts/scripts/security-analysis.sh

@@ -44,6 +44,8 @@ if $RUN_SLITHER; then
             --json "$SLITHER_REPORT" \
             --checklist \
             --exclude-dependencies \
+            --disable-implict-optimizations \
+            --solc-args "--optimize --runs 200" \
             2>&1 | tee "$SLITHER_TEXT" || true
 
         echo ""