- Remove all OLLIE_*_PATH vars (TOOLS_PATH, CFG_PATH, DATA_PATH, etc.)
Use XDG_CONFIG_HOME/ollie/* and XDG_DATA_HOME/ollie/* instead
- Replace OLLIE_<TAG>_LOG per-component logging with single OLLIE_LOG={level}
- Remove Route()/RouteRequest/RouteResult (replaced by direct backend selection)
- Update sandbox config to use XDG paths instead of OLLIE_*_PATH tokens
- Update docs accordingly
- executeElevated: use e.sessionID instead of os.Getenv (process-global
env is empty in multi-session olliesrv)
- executeElevated: merge envExtra into broker env map so session-scoped
vars are visible to elevated commands
- Replace per-turn rate limit with x/time/rate leaky bucket:
burst of 3, refills 1 token per 10s. Only denials/timeouts consume
tokens; approvals are free.