feat(train): a recording follows a route, its turns told (ADR 0030, D45)

The Record sheet offers the routes with a way planned; the recorder's
service follows the one chosen offline (RouteGuide.kt): turns told 50 m
before them (100 m on a bike) after a tone, off the route past 40 m for
10 s a cue with the way back, told again on rejoining, the end told.
The recording file keeps the route and the guidance; the recording
screen shows the next turn or the way back, and swipes to a map of the
route, the track and the position, north or the heading up.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>

apps/train/halkyon_train_flutter/lib/l10n/app_de.arb

@@ -416,5 +416,40 @@
   "routeDelete": "Löschen",
   "routeDeleteTitle": "Diese Route löschen?",
   "routeDeleteMessage": "Sie wird auf all deinen Geräten gelöscht.",
-  "routeDeleted": "Route gelöscht"
+  "routeDeleted": "Route gelöscht",
+  "turnStraight": "Geradeaus",
+  "turnLeft": "Links abbiegen",
+  "turnSlightLeft": "Leicht links",
+  "turnSharpLeft": "Scharf links",
+  "turnRight": "Rechts abbiegen",
+  "turnSlightRight": "Leicht rechts",
+  "turnSharpRight": "Scharf rechts",
+  "turnKeepLeft": "Links halten",
+  "turnKeepRight": "Rechts halten",
+  "turnAround": "Wenden",
+  "turnRoundabout": "Im Kreisverkehr die {exit}. Ausfahrt nehmen",
+  "turnExitLeft": "Die Ausfahrt links nehmen",
+  "turnExitRight": "Die Ausfahrt rechts nehmen",
+  "routeSayIn": "In {metres} Metern: {turn}",
+  "routeSayOff": "Abseits der Route. Sie liegt {metres} Meter {direction}.",
+  "routeSayOn": "Zurück auf der Route",
+  "routeSayArrived": "Ende der Route",
+  "directionNorth": "nördlich",
+  "directionNorthEast": "nordöstlich",
+  "directionEast": "östlich",
+  "directionSouthEast": "südöstlich",
+  "directionSouth": "südlich",
+  "directionSouthWest": "südwestlich",
+  "directionWest": "westlich",
+  "directionNorthWest": "nordwestlich",
+  "recordRoute": "Route",
+  "recordNoRoute": "Keine",
+  "recordingNextTurn": "In {distance}",
+  "recordingOffRoute": "Abseits der Route: {distance} {direction}",
+  "recordingRouteEnd": "Ende der Route",
+  "recordingFollowRoute": "Route: {name}",
+  "recordingMapHint": "Wischen für die Karte",
+  "recordingFiguresHint": "Zurückwischen für die Werte",
+  "recordingNorthUp": "Norden oben",
+  "recordingHeadingUp": "Bewegungsrichtung oben"
 }