Closes the v111 test-infrastructure arc. Bumps semver, reconciles NOW.md and ROADMAP with honest v111 history (including the pulled CI E2E work), and appends 6 KNOWN_SHARP_EDGES entries from v111's learnings.
v111.52026-06-09
·package.json: 0.17.0 → 0.18.0
·NOW.md: v111 closed (12-row commit table), v112 opened
·ROADMAP §3: v111 LANDED with all amendment SHAs, deviation notes, audit-vs-reality section
·KNOWN_SHARP_EDGES: 6 new entries (file-level parallelism, waitForTimeout→web-first, arch-flake deferral, triple-run, CI runtime projections, pull-and-defer discipline)
·CI E2E DEFERRED honestly; v110-era CI (lint-css + typecheck) retained