refactor(i18n): route remaining Obsidian UI text through the message catalogue

Continues the source-key migration inside the application boundary introduced
in 1.0.0, where LiveSync owns its catalogue and consumes Commonlib as a
published package.

- Replace hardcoded user-visible strings in the Obsidian UI (Setup Wizard
  dialogues, P2P panes, Customisation Sync panes, Global History, the JSON
  conflict pane and the remote-configuration menu) with `$msg` calls, keeping
  the English source string as the key.
- Wire up strings whose translations already existed in the catalogue but were
  still rendered as literals, for example the whole Intro dialogue.
- Add the new entries to `src/common/messagesYAML/en.yaml` and `es.yaml`, then
  regenerate `messagesJson/` and `combinedMessages.prod.ts` through the
  documented `i18n:bake` pipeline.
- No Commonlib gitlink or catalogue is involved; every change is
  LiveSync-owned.

Regenerating the catalogue also normalises three pre-existing entries each in
`ko.json` and `zh.json`, where the committed JSON kept a trailing space before
a newline that YAML cannot represent.

Verified with tsc-check, tsc-check:apps, svelte-check and lint.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

src/modules/services/LiveSyncUI/dialogues/DialogueToCopy.svelte

@@ -7,6 +7,7 @@
     import Decision from "@/modules/services/LiveSyncUI/components/Decision.svelte";
     import UserDecisions from "@/modules/services/LiveSyncUI/components/UserDecisions.svelte";
     import InfoNote from "@/modules/services/LiveSyncUI/components/InfoNote.svelte";
+    import { $msg as translateMessage } from "@/common/translation";
     const TYPE_OK = "ok";
     type ResultType = typeof TYPE_OK;
     type Options = {
@@ -38,7 +39,7 @@
 
 <DialogHeader title="Your {title || 'Data'} is ready to be copied" />
 <Instruction>
-    <InputRow label={title || "Data to Copy"}>
+    <InputRow label={title || translateMessage("Data to Copy")}>
         <textarea readonly rows="4">{dataToCopy}</textarea>
         <button onclick={() => copyToClipboard()}
             >{#if !copied}📋{:else}✔️{/if}