Delivered: Paid down the v1.x backend backlog — excised the fs-finder fork, triaged Dependabot alerts, and verified the influx stats fix live in production. 4/4 requirements across Phases 15-17.

Key accomplishments:
- REFACTOR-06/07: fs-finder removed; native lib/thinx/finder.js helper
- SEC-DEP-03: 3 surgical overrides; runtime tree 0 high/0 moderate
- OPS-EXEC-03: influx fix verified live (discrepancy branch)

Audit tech_debt: Phases 15/16 await operator push/CI/deploy follow-on.
See .planning/MILESTONES.md for full details.