feat(plugin-sdk): export OpenClawSchema via plugin-sdk/config-schema

Add a public export path for the root Zod config schema so external
tools can import it for validation and introspection without reaching
into internal bundle chunks.

Import path: `openclaw/plugin-sdk/config-schema`

package.json

@@ -119,6 +119,10 @@
       "types": "./dist/plugin-sdk/config-runtime.d.ts",
       "default": "./dist/plugin-sdk/config-runtime.js"
     },
+    "./plugin-sdk/config-schema": {
+      "types": "./dist/plugin-sdk/config-schema.d.ts",
+      "default": "./dist/plugin-sdk/config-schema.js"
+    },
     "./plugin-sdk/reply-runtime": {
       "types": "./dist/plugin-sdk/reply-runtime.d.ts",
       "default": "./dist/plugin-sdk/reply-runtime.js"

scripts/lib/plugin-sdk-entrypoints.json

@@ -19,6 +19,7 @@
   "approval-reply-runtime",
   "approval-runtime",
   "config-runtime",
+  "config-schema",
   "reply-runtime",
   "reply-dispatch-runtime",
   "reply-reference",

src/plugin-sdk/config-schema.ts

@@ -0,0 +1,2 @@
+/** Root OpenClaw configuration Zod schema — the full `openclaw.json` shape. */
+export { OpenClawSchema } from "../config/zod-schema.js";