fix(knowledge): 优化quiet和format参数的输出逻辑

- 在file-get命令中，quiet模式下仅输出fileId，避免了多余的结果格式化
- 在kb-info命令中，quiet模式仅输出id，格式化输出逻辑得到简化
- 在kb-stats命令中，去除了quiet判断，确保非"text"格式下正确输出结果
- 在service-get命令中，quiet模式下只输出agent_id，格式化部分调整为独立判断
- 统一了各命令中针对quiet和format参数的处理流程，提升代码一致性和可读性

packages/commands/src/commands/knowledge/file-get.ts

@@ -45,8 +45,12 @@ export default defineCommand({
     });
 
     const file = response.data;
-    if (settings.quiet || format !== "text") {
-      emitResult(response, format === "text" ? "json" : format);
+    if (settings.quiet) {
+      emitBare(file?.fileId ?? "");
+      return;
+    }
+    if (format !== "text") {
+      emitResult(response, format);
       return;
     }
     emitBare(`id: ${file?.fileId ?? "-"}`);

packages/commands/src/commands/knowledge/kb-info.ts

@@ -92,8 +92,12 @@ export default defineCommand({
 
     const row = await fetchIndexDetail(ctx.client, workspaceId, flags.indexId);
 
-    if (settings.quiet || format !== "text") {
-      emitResult(row, format === "text" ? "json" : format);
+    if (settings.quiet) {
+      emitBare(row.id ?? "");
+      return;
+    }
+    if (format !== "text") {
+      emitResult(row, format);
       return;
     }
 

packages/commands/src/commands/knowledge/kb-stats.ts

@@ -102,8 +102,8 @@ export default defineCommand({
       body,
     });
 
-    if (settings.quiet || format !== "text") {
-      emitResult(response, format === "text" ? "json" : format);
+    if (format !== "text") {
+      emitResult(response, format);
       return;
     }
     if (clampedEnd) {

packages/commands/src/commands/knowledge/service-get.ts

@@ -77,8 +77,12 @@ export default defineCommand({
     });
 
     const data = response.data;
-    if (settings.quiet || format !== "text") {
-      emitResult(response, format === "text" ? "json" : format);
+    if (settings.quiet) {
+      emitBare(data?.agent_id ?? "");
+      return;
+    }
+    if (format !== "text") {
+      emitResult(response, format);
       return;
     }
     emitBare("Basic:");