docs(knowledge): 扩展知识库描述长度限制到 500 字符

- 修改命令行参数文档，将 --description 长度限制由 200 字符增加到 500 字符
- 更新代码校验逻辑，支持描述长度最大 500 字符
- 调整相关提示信息，反映新的长度限制
- 修改测试用例，支持 501 字符的描述参数触发用法错误
- 更新 CLI 参考文档中描述字段的长度说明

docs/knowledge/kb.md

@@ -136,7 +136,7 @@ bl knowledge create --name <text> --description <text> (--doc-id <id> | --catego
 | 参数                        | 类型   | 必填 | 说明                                                     |
 | --------------------------- | ------ | ---- | -------------------------------------------------------- |
 | `--name <text>`             | string | 是   | 知识库名称（1-20 字符，工作区内唯一）                    |
-| `--description <text>`      | string | 是   | 知识库装了什么内容、给谁用（1-200 字符）                 |
+| `--description <text>`      | string | 是   | 知识库装了什么内容、给谁用（1-500 字符）                 |
 | `--doc-id <id>`             | array  | 否¹  | 数据中心文件 ID（可重复）；与 `--category-id` 互斥       |
 | `--category-id <id>`        | array  | 否¹  | 按分类导入该分类下所有文件（可重复）；与 `--doc-id` 互斥 |
 | `--embedding-model <name>`  | string | 否   | 向量模型名称（默认：`text-embedding-v4`）                |
@@ -149,7 +149,7 @@ bl knowledge create --name <text> --description <text> (--doc-id <id> | --catego
 **参数约束**
 
 - `--name` 长度 1-20 字符
-- `--description` 长度 1-200 字符，缺失或超长会在本地被拦截
+- `--description` 长度 1-500 字符，缺失或超长会在本地被拦截
 - `--doc-id` 和 `--category-id` 互斥，必须提供其一
 
 **输出**

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

@@ -34,8 +34,8 @@ const KB_CREATE_FLAGS = {
     valueHint: "<text>",
     description: {
       "en-US":
-        "What this knowledge base holds and what it is for — tells bases apart in the workspace list (1-200 chars)",
-      "zh-CN": "知识库装了什么内容、给谁用，用于在 Workspace 列表中区分同类知识库（1–200 个字符）",
+        "What this knowledge base holds and what it is for — tells bases apart in the workspace list (1-500 chars)",
+      "zh-CN": "知识库装了什么内容、给谁用，用于在 Workspace 列表中区分同类知识库（1–500 个字符）",
     },
     required: true,
   },
@@ -147,8 +147,8 @@ export default defineCommand({
   ],
   validate(flags) {
     if (flags.name.length < 1 || flags.name.length > 20) return "--name must be 1-20 characters";
-    if (flags.description.length < 1 || flags.description.length > 200) {
-      return "--description must be 1-200 characters";
+    if (flags.description.length < 1 || flags.description.length > 500) {
+      return "--description must be 1-500 characters";
     }
     const hasDocIds = !!flags.docId?.length;
     const hasCategoryIds = !!flags.categoryId?.length;
@@ -166,8 +166,8 @@ export default defineCommand({
     // Note: the public docs' example uses sinkType DEFAULT, but BUILT_IN is what works against the live API.
     const body = {
       name: flags.name,
-      // The server enforces description as a required 1-200 char field (the public
-      // API docs still list it as absent from CreateIndexV2Request.required).
+      // description is a required field; length limit is 1-500 (the public API docs
+      // still list it as absent from CreateIndexV2Request.required).
       description: flags.description,
       structureType: "unstructured",
       sinkType: "BUILT_IN",

packages/commands/tests/e2e/knowledge/knowledge-kb-create.e2e.test.ts

@@ -61,14 +61,14 @@ describe("e2e: knowledge kb create", () => {
     expect(exitCode).toBe(2);
   });
 
-  test("--description 201 字符报 USAGE (2)", async () => {
+  test("--description 501 字符报 USAGE (2)", async () => {
     const { exitCode } = await runCommandE2e(KNOWLEDGE_KB_CREATE_ROUTES, [
       "knowledge",
       "create",
       "--name",
       "demo",
       "--description",
-      "x".repeat(201),
+      "x".repeat(501),
       "--doc-id",
       "file_test",
       "--workspace-id",

skills/bailian-cli/reference/knowledge.md

@@ -432,7 +432,7 @@ bl knowledge collection get --name my-collection
 | Flag                        | Type   | Required | Description                                                                                               |
 | --------------------------- | ------ | -------- | --------------------------------------------------------------------------------------------------------- |
 | `--name <text>`             | string | yes      | Knowledge base name (1-20 chars, unique in workspace)                                                     |
-| `--description <text>`      | string | yes      | What this knowledge base holds and what it is for — tells bases apart in the workspace list (1-200 chars) |
+| `--description <text>`      | string | yes      | What this knowledge base holds and what it is for — tells bases apart in the workspace list (1-500 chars) |
 | `--doc-id <id>`             | array  | no       | Data-center file id to import (repeatable); mutually exclusive with --category-id                         |
 | `--category-id <id>`        | array  | no       | Import every file under this category (repeatable); mutually exclusive with --doc-id                      |
 | `--embedding-model <name>`  | string | no       | Embedding model name (default: text-embedding-v4)                                                         |