move backend config schemas to where they belong

Signed-off-by: Fredrik Adelöw <freben@gmail.com>

packages/backend-plugin-api/config.d.ts

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2024 The Backstage Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+export interface Config {
+  backend?: {
+    /**
+     * An absolute path to a directory that can be used as a working dir, for
+     * example as scratch space for large operations.
+     *
+     * @remarks
+     *
+     * Note that this must be an absolute path.
+     *
+     * If not set, the operating system's designated temporary directory is
+     * commonly used, but that is implementation defined per plugin.
+     *
+     * Plugins are encouraged to heed this config setting if present, to allow
+     * deployment in severely locked-down or limited environments.
+     */
+    workingDirectory?: string;
+  };
+}

packages/backend-plugin-api/package.json

@@ -40,7 +40,8 @@
     }
   },
   "files": [
-    "dist"
+    "dist",
+    "config.d.ts"
   ],
   "scripts": {
     "build": "backstage-cli package build",
@@ -67,5 +68,6 @@
   "devDependencies": {
     "@backstage/backend-test-utils": "workspace:^",
     "@backstage/cli": "workspace:^"
-  }
+  },
+  "configSchema": "config.d.ts"
 }