e2e: per-test timescale speedup — FAST/CHAIN rates for pure arrival waits (v1.8.0)

- actions/hover/two-planes: FAST=10_000 for expiry fast-forwards, landing
  waits and fly-home cleanups; queue: + CHAIN=4_000 for auto-chain
  observation, refuel test at explicit 2_000 with relaxed fuel bound
- map-interactions: FAST=50_000 chain hops (~3 min -> ~15 s per direction);
  crossing leg stays at SCALE and now sets it BEFORE dispatch (a leftover
  fast rate would let the dispatch tick consume most of the leg)
- hover fleet-row test asserts flying from the fly endpoint's own snapshot
  and freezes immediately instead of speeding up then freezing mid-leg
- two-planes parallel-flight: both-grounded poll after cleanup dispatches so
  afterEach heal no longer pays the range-edge return leg at SCALE

package.json

@@ -1,6 +1,6 @@
 {
   "name": "flight-ops",
-  "version": "1.7.0",
+  "version": "1.8.0",
   "private": true,
   "scripts": {
     "dev": "next dev -p 3000",