lib/cli: allow specifying query for kanji/word

lib/cli/commands/query_kanji.dart

@@ -14,6 +14,12 @@ class QueryKanji extends Command {
   QueryKanji() {
     addLibsqliteArg(argParser);
     addJadbArg(argParser);
+    argParser.addOption(
+      'kanji',
+      abbr: 'k',
+      help: 'The kanji to search for.',
+      valueHelp: 'KANJI',
+    );
   }
 
   Future<void> run() async {
@@ -29,7 +35,9 @@ class QueryKanji extends Command {
     );
 
     final time = Stopwatch()..start();
-    final result = await JaDBConnection(db).searchKanji('漢');
+    final result = await JaDBConnection(db).searchKanji(
+      argResults!.option('kanji') ?? '漢',
+    );
     time.stop();
 
     if (result == null) {

lib/cli/commands/query_word.dart

@@ -13,6 +13,12 @@ class QueryWord extends Command {
   QueryWord() {
     addLibsqliteArg(argParser);
     addJadbArg(argParser);
+    argParser.addOption(
+      'word',
+      abbr: 'w',
+      help: 'The word to search for.',
+      valueHelp: 'WORD',
+    );
   }
 
   Future<void> run() async {
@@ -27,7 +33,7 @@ class QueryWord extends Command {
       libsqlitePath: argResults!.option('libsqlite')!,
     );
 
-    final String searchWord = 'かな';
+    final String searchWord = argResults!.option('word') ?? 'かな';
 
     final time = Stopwatch()..start();
     final count = await JaDBConnection(db).searchWordCount(searchWord);