feat(yomitan): add read-only external profile support for shared dictionaries (#18)

src/main/runtime/yomitan-profile-policy.ts

@@ -0,0 +1,25 @@
+import {
+  getCharacterDictionaryDisabledReason,
+  isCharacterDictionaryRuntimeEnabled,
+} from './character-dictionary-availability';
+
+export function createYomitanProfilePolicy(options: {
+  externalProfilePath: string;
+  logInfo: (message: string) => void;
+}) {
+  const externalProfilePath = options.externalProfilePath.trim();
+
+  return {
+    externalProfilePath,
+    isExternalReadOnlyMode: (): boolean => externalProfilePath.length > 0,
+    isCharacterDictionaryEnabled: (): boolean =>
+      isCharacterDictionaryRuntimeEnabled(externalProfilePath),
+    getCharacterDictionaryDisabledReason: (): string | null =>
+      getCharacterDictionaryDisabledReason(externalProfilePath),
+    logSkippedWrite: (action: string): void => {
+      options.logInfo(
+        `[yomitan] skipping ${action}: yomitan.externalProfilePath is configured; external profile mode is read-only`,
+      );
+    },
+  };
+}