feat(05-04): route strings (10 keys en+ms) + @araharah/routing workspace dep (GREEN)

- 10 ShellStrings keys per the binding UI-SPEC copy table (routeRegister,
  routeDiffFastest/Slower templates, pending card quartet, ctaSearchAgain,
  ariaRouteAlternatives/Chip templates) — verbatim en + ms
- copy gate: COPY1 floor 40 + route-key pins, COPY5 scans web/src/route,
  COPY7 pins the verbatim pending/CTA/template copy
- web depends on @araharah/routing (lockfile settled)

package-lock.json

@@ -3980,6 +3980,7 @@
     "web": {
       "name": "@araharah/web",
       "dependencies": {
+        "@araharah/routing": "*",
         "@araharah/search": "*",
         "@araharah/theme": "*",
         "maplibre-gl": "^6.15.0"