tighten the remaining voice outline review items

- One place-name key for server and tiles, so "St. Paul" and "Saint Paul"
  agree in Nominatim name checks.
- Tile street names: a lone letter is a direction only beside another name
  word ("E Street" is not "East Street"), and a trailing quadrant ("E St NW")
  may go unsaid in the ask.
- A building cut at the tile edge that is nearer the point than any whole
  one leaves the point instead of a farther neighbour standing in; an edge
  without a tile buffer counts as a cut, so a cut area never answers grounds.
- A batch building install re-judges only results that installed; a late
  timeout during caption conversion keeps the pending point drawn; a failed
  plain recaption keeps the old mark addressable.
- An interrupted Nominatim dispatch is reclaimed by the next lock owner ten
  minutes after the start its marker names; node:sqlite loads on first use
  without its experimental warning.
- PHOTON_URL accepts only https, which the page's connect-src allows.
- Shared OpenFreeMap tiles decode each layer when a consumer first selects
  it; outline selection reuses the shared ring area and simplification, and
  ground probes the shared ring centroid; the grounds word list lives once.

build/vite.js

@@ -25,7 +25,11 @@ export function escapeFsDenyPath(path) {
 
 const REPO_ROOT_GLOB = escapeFsDenyPath(REPO_ROOT);
 
-/** Browser-safe form of the optional Photon endpoint build input. */
+/**
+ * Browser-safe form of the optional Photon endpoint build input. Only https
+ * is accepted: the page's connect-src allows no plain-http origin, so an
+ * http endpoint would only fail later, silently, in the browser.
+ */
 function photonEndpointSetting(value) {
   if (value === undefined) return undefined;
   const text = String(value ?? '').trim();
@@ -34,7 +38,7 @@ function photonEndpointSetting(value) {
   try {
     const url = new URL(text);
     if (
-      !['http:', 'https:'].includes(url.protocol) ||
+      url.protocol !== 'https:' ||
       url.username ||
       url.password ||
       url.search ||