* feat(tooling): add noUncheckedIndexedAccess strict-ratchet lane
* fix(packages): make indexed access explicit across ratchet packages
Burns down all 65 noUncheckedIndexedAccess errors in the seven ratchet
packages with behavior-identical restructuring (iteration, charAt/slice,
regex-group guards, validated hextet tuple). net-policy invariant
violations now throw instead of failing open. Adds
@openclaw/normalization-core/expect (expectDefined/first/last) with
subpath export and tests. memory-host-sdk fixes kept but the package
stays out of the lane: it re-exports core src/** so the flag would apply
transitively to all of core.
* fix(lint): keep .oxlintrc.json strict-JSON parseable for extension lint wrappers
