new: replace in-memory record repository with JSON-backed implementation

data/resources/src/commonMain/composeResources/files/records.example.json

@@ -0,0 +1,18 @@
+[
+  {
+    "emoji": "🙏",
+    "transcription": "An onestiz",
+    "translation": "La politesse",
+    "audio": "files/Chom_bev_01.m4a",
+    "subtitle": "files/Chom_bev_01_st_bzh.lrc",
+    "translationSubtitle": "files/Chom_bev_01_st_fr.lrc"
+  },
+  {
+    "emoji": "👋",
+    "transcription": "En em brezantiñ",
+    "translation": "Se présenter",
+    "audio": "files/Chom_bev_02.m4a",
+    "subtitle": "files/Chom_bev_02_st_bzh.lrc",
+    "translationSubtitle": "files/Chom_bev_02_st_fr.lrc"
+  }
+]