fix(commands): use ?? instead of || for numeric flag defaults

|| treats 0 as falsy, silently replacing explicit zero values with defaults.
--max-tokens 0 became 4096, --speed 0 vanished entirely. Affects 5 commands.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: 2 people

src/commands/image/generate.ts

@@ -50,7 +50,7 @@ export default defineCommand({
       model: 'image-01',
       prompt,
       aspect_ratio: (flags.aspectRatio as string) || undefined,
-      n: (flags.n as number) || 1,
+      n: (flags.n as number) ?? 1,
     };
 
     if (flags.subjectRef) {

src/commands/music/generate.ts

@@ -123,8 +123,8 @@ export default defineCommand({
       lyrics,
       audio_setting: {
         format: (flags.format as string) || 'mp3',
-        sample_rate: (flags.sampleRate as number) || 44100,
-        bitrate: (flags.bitrate as number) || 256000,
+        sample_rate: (flags.sampleRate as number) ?? 44100,
+        bitrate: (flags.bitrate as number) ?? 256000,
       },
       output_format: outFormat,
       stream: flags.stream === true,

src/commands/speech/synthesize.ts

@@ -65,15 +65,15 @@ export default defineCommand({
       text,
       voice_setting: {
         voice_id: voice,
-        speed: (flags.speed as number) || undefined,
-        vol: (flags.volume as number) || undefined,
-        pitch: (flags.pitch as number) || undefined,
+        speed: (flags.speed as number) ?? undefined,
+        vol: (flags.volume as number) ?? undefined,
+        pitch: (flags.pitch as number) ?? undefined,
       },
       audio_setting: {
         format: (flags.format as string) || 'mp3',
-        sample_rate: (flags.sampleRate as number) || 32000,
-        bitrate: (flags.bitrate as number) || 128000,
-        channel: (flags.channels as number) || 1,
+        sample_rate: (flags.sampleRate as number) ?? 32000,
+        bitrate: (flags.bitrate as number) ?? 128000,
+        channel: (flags.channels as number) ?? 1,
       },
       output_format: outFormat,
       stream: flags.stream === true,

src/commands/text/chat.ts

@@ -123,7 +123,7 @@ export default defineCommand({
     const body: ChatRequest = {
       model,
       messages,
-      max_tokens: (flags.maxTokens as number) || 4096,
+      max_tokens: (flags.maxTokens as number) ?? 4096,
       stream: shouldStream,
     };
 

src/commands/video/generate.ts

@@ -100,7 +100,7 @@ export default defineCommand({
     }
 
     // Default: poll until completion
-    const pollInterval = (flags.pollInterval as number) || 5;
+    const pollInterval = (flags.pollInterval as number) ?? 5;
     const taskUrl = videoTaskEndpoint(config.baseUrl, taskId);
 
     const result = await poll<VideoTaskResponse>(config, {