docs: sync README + TESTING + scrypted README with v1.4.0 reality

Drift accumulated across the review-fix, mDNS-discovery, and tooling
work:

- Discovery: the design-era "use a Node mDNS library" flow is replaced
  with what shipped — the sandbox has no such libraries; the script does
  a dependency-free legacy-unicast dgram browse (no :5353 bind), host
  dropdowns, blank-name inheritance, and auto-heal on register failure
  (matched by the new mac TXT record) instead of periodic re-browsing.
- /state example: add mac, ota_state, panel dims, tear_guard_engaged,
  temp_c, and the stream stats object; correct `configured` semantics
  (scrypted URL only) and the never-null MAC-derived name in /config.
- /config: document the 54-char name cap (mDNS label limit).
- scrypted/README: add-device + settings tables gain the discovered-host
  dropdown, Wake triggers on create, and the canonical "Viewport name"
  rename field (the Scrypted pencil doesn't propagate — by design);
  trigger-scoped subscriptions; device-wake immediate-204 semantics;
  idle=0 no longer force-slept by the safety timer; "manual IP" dropped
  from limitations; discovery section reframed with the diagnostic.ts
  probe and bridge-networking caveat.
- Source map: dedupe the doubled touch.{h,c} row, add stream_server /
  ota / chip_temp rows, fix nvs_config + endpoint-count drift.
- Build/TESTING: point iteration at `make ota` (USB stays for first
  flash); TXT expectations include mac; DHCP-renumber failure mode now
  documents the verified auto-heal path.

0 files changed, 0 insertions, 0 deletions