精简环境变量配置

apps/backend/src/config/env-overrides.ts

@@ -9,7 +9,6 @@ import {
   parseBoolean,
   parseInteger,
   parseJsonArray,
-  parseCommaSeparatedStrings,
 } from "./runtime-env.js";
 import { deepMerge } from "./runtime-merge.js";
 
@@ -305,17 +304,6 @@ function adminUsersJsonEnv(
   };
 }
 
-function stringArrayEnv(
-  env: string,
-  configPath: RuntimeConfigPath
-): EnvOverride {
-  return {
-    env,
-    path: configPath,
-    read: parseCommaSeparatedStrings,
-  };
-}
-
 function corsOriginsEnv(
   env: string,
   configPath: RuntimeConfigPath

apps/backend/src/config/runtime-env.ts

@@ -96,18 +96,3 @@ export function parseJsonArray<T = unknown>(rawValue: unknown): T[] | null {
     return null;
   }
 }
-
-export function parseCommaSeparatedStrings(rawValue: unknown): string[] | null {
-  const normalized = String(rawValue || "").trim();
-
-  if (!normalized) {
-    return null;
-  }
-
-  const items = normalized
-    .split(",")
-    .map((item) => item.trim())
-    .filter((item) => item.length > 0);
-
-  return items.length > 0 ? items : null;
-}