diff --git a/apps/ui/src/App.tsx b/apps/ui/src/App.tsx
index e6f9402..0aacd4d 100644
--- a/apps/ui/src/App.tsx
+++ b/apps/ui/src/App.tsx
@@ -497,7 +497,7 @@ const App = () => {
 				try {
 					await navigator.clipboard.writeText(result.token);
 					setNotice(`令牌已复制到剪贴板：${result.token}`);
-				} catch (clipboardError) {
+				} catch (_clipboardError) {
 					setNotice(`令牌: ${result.token}`);
 				}
 			} catch (error) {
diff --git a/apps/worker/src/routes/newapiChannels.ts b/apps/worker/src/routes/newapiChannels.ts
index 5ef24c4..315bf8e 100644
--- a/apps/worker/src/routes/newapiChannels.ts
+++ b/apps/worker/src/routes/newapiChannels.ts
@@ -1,14 +1,6 @@
 import { type Context, Hono } from "hono";
 import type { AppEnv } from "../env";
 import { newApiAuth } from "../middleware/newApiAuth";
-import {
-	mergeMetadata,
-	modelsToJson,
-	normalizeBaseUrlInput,
-	normalizeChannelInput,
-	toNewApiChannel,
-	withNewApiDefaults,
-} from "../services/newapi";
 import {
 	collectUniqueModelIds,
 	extractModelIds,
@@ -28,6 +20,14 @@ import {
 	fetchChannelModels,
 	updateChannelTestResult,
 } from "../services/channel-testing";
+import {
+	mergeMetadata,
+	modelsToJson,
+	normalizeBaseUrlInput,
+	normalizeChannelInput,
+	toNewApiChannel,
+	withNewApiDefaults,
+} from "../services/newapi";
 import { generateToken } from "../utils/crypto";
 import { safeJsonParse } from "../utils/json";
 import { newApiFailure, newApiSuccess } from "../utils/newapi-response";
@@ -58,7 +58,6 @@ async function handleModelsList(c: Context<AppEnv>) {
 	return newApiSuccess(c, data);
 }
 
-
 newapi.get("/", async (c) => {
 	const page = normalizePage(c.req.query("p") ?? c.req.query("page"), 1);
 	const pageSize = normalizePageSize(
@@ -291,7 +290,7 @@ newapi.post("/", async (c) => {
 		type: parsed.type ?? 1,
 		group_name: parsed.group_name ?? null,
 		priority: parsed.priority ?? 0,
-		metadata_json: parsed.metadata_json,
+		metadata_json: parsed.metadata_json ?? null,
 		created_at: now,
 		updated_at: now,
 	});
@@ -489,4 +488,3 @@ newapi.get("/:id", async (c) => {
 });
 
 export default newapi;
-
diff --git a/apps/worker/src/services/channel-repo.ts b/apps/worker/src/services/channel-repo.ts
index 44e9a13..747c753 100644
--- a/apps/worker/src/services/channel-repo.ts
+++ b/apps/worker/src/services/channel-repo.ts
@@ -67,8 +67,10 @@ export async function listChannels(
 	const statement = db.prepare(
 		`SELECT * FROM channels ${whereSql} ${orderSql} ${limitSql}`,
 	);
-	const rows = await bindIfNeeded(statement, [...bindings, ...limitBindings])
-		.all<ChannelRow>();
+	const rows = await bindIfNeeded(statement, [
+		...bindings,
+		...limitBindings,
+	]).all<ChannelRow>();
 	return rows.results ?? [];
 }
 
@@ -80,7 +82,9 @@ export async function countChannels(
 	const statement = db.prepare(
 		`SELECT COUNT(*) as count FROM channels ${whereSql}`,
 	);
-	const row = await bindIfNeeded(statement, bindings).first<{ count: number }>();
+	const row = await bindIfNeeded(statement, bindings).first<{
+		count: number;
+	}>();
 	return Number(row?.count ?? 0);
 }
 
@@ -220,9 +224,6 @@ export async function updateChannel(
 		.run();
 }
 
-export async function deleteChannel(
-	db: D1Database,
-	id: string,
-): Promise<void> {
+export async function deleteChannel(db: D1Database, id: string): Promise<void> {
 	await db.prepare("DELETE FROM channels WHERE id = ?").bind(id).run();
 }
diff --git a/apps/worker/src/services/channel-testing.ts b/apps/worker/src/services/channel-testing.ts
index 7621983..343adf0 100644
--- a/apps/worker/src/services/channel-testing.ts
+++ b/apps/worker/src/services/channel-testing.ts
@@ -1,7 +1,7 @@
 import type { D1Database } from "@cloudflare/workers-types";
 import { nowIso } from "../utils/time";
 import { normalizeBaseUrl } from "../utils/url";
-import { normalizeModelsInput, modelsToJson } from "./channel-models";
+import { modelsToJson, normalizeModelsInput } from "./channel-models";
 
 export type ChannelTestResult = {
 	ok: boolean;
@@ -52,14 +52,17 @@ export async function updateChannelTestResult(
 	const now = Math.floor(Date.now() / 1000);
 	const status = result.ok ? "active" : "error";
 	const modelsJson =
-		result.modelsJson ?? (result.models ? modelsToJson(result.models) : undefined);
+		result.modelsJson ??
+		(result.models ? modelsToJson(result.models) : undefined);
 	const sql = modelsJson
 		? "UPDATE channels SET status = ?, models_json = ?, test_time = ?, response_time_ms = ?, updated_at = ? WHERE id = ?"
 		: "UPDATE channels SET status = ?, test_time = ?, response_time_ms = ?, updated_at = ? WHERE id = ?";
 
 	const stmt = db.prepare(sql);
 	if (modelsJson) {
-		await stmt.bind(status, modelsJson, now, result.elapsed, nowIso(), id).run();
+		await stmt
+			.bind(status, modelsJson, now, result.elapsed, nowIso(), id)
+			.run();
 	} else {
 		await stmt.bind(status, now, result.elapsed, nowIso(), id).run();
 	}
diff --git a/apps/worker/src/services/channels.ts b/apps/worker/src/services/channels.ts
index f095b54..37837c7 100644
--- a/apps/worker/src/services/channels.ts
+++ b/apps/worker/src/services/channels.ts
@@ -1,8 +1,8 @@
-import type { ChannelRecord } from "./channel-types";
 import { extractModels } from "./channel-models";
+import type { ChannelRecord } from "./channel-types";
 
-export type { ChannelRecord } from "./channel-types";
 export type { ModelEntry } from "./channel-models";
+export type { ChannelRecord } from "./channel-types";
 export { extractModels };
 
 /**
diff --git a/apps/worker/src/services/newapi.ts b/apps/worker/src/services/newapi.ts
index b94a4f6..e2b92e0 100644
--- a/apps/worker/src/services/newapi.ts
+++ b/apps/worker/src/services/newapi.ts
@@ -1,12 +1,12 @@
 import { safeJsonParse } from "../utils/json";
 import { normalizeBaseUrl } from "../utils/url";
-import type { ChannelRow } from "./channel-types";
 import {
 	extractModelIds,
 	modelsToJson,
 	normalizeModelsInput,
 } from "./channel-models";
 import { toInternalStatus, toNewApiStatus } from "./channel-status";
+import type { ChannelRow } from "./channel-types";
 
 export { extractModelIds, modelsToJson, normalizeModelsInput };
 export { toInternalStatus, toNewApiStatus };
diff --git a/helloagents/CHANGELOG.md b/helloagents/CHANGELOG.md
index dc3b715..ee2b9b3 100644
--- a/helloagents/CHANGELOG.md
+++ b/helloagents/CHANGELOG.md
@@ -3,6 +3,12 @@
 ## [Unreleased]
 
 ### 微调
+- **[admin-ui]**: 处理剪贴板异常时忽略未使用的错误变量
+  - 类型: 微调（无方案包）
+  - 文件: apps/ui/src/App.tsx:500
+- **[worker]**: 创建渠道时 metadata_json 为空则写入 null 以满足类型约束
+  - 类型: 微调（无方案包）
+  - 文件: apps/worker/src/routes/newapiChannels.ts:293
 - **[admin-ui]**: 令牌查看自动复制并提示
   - 类型: 微调（无方案包）
   - 文件: apps/ui/src/App.tsx:440-455