fix(opencode-plugin): drop CJS bundle to fix OpenCode plugin loader (#3883)

Integrated into release/v3.8.26 (scoped to the ESM-only loader fix)

@omniroute/opencode-plugin/package.json

@@ -3,19 +3,16 @@
   "version": "0.1.0",
   "description": "OpenCode plugin for the OmniRoute AI Gateway. Drives dynamic model discovery, /connect auth flow, and multi-instance OmniRoute providers via the official @opencode-ai/plugin contract.",
   "type": "module",
-  "main": "./dist/index.cjs",
-  "module": "./dist/index.js",
+  "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "exports": {
     ".": {
-      "import": {
-        "types": "./dist/index.d.ts",
-        "default": "./dist/index.js"
-      },
-      "require": {
-        "types": "./dist/index.d.cts",
-        "default": "./dist/index.cjs"
-      }
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js"
+    },
+    "./runtime": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js"
     }
   },
   "files": [

@omniroute/opencode-plugin/tsup.config.ts

@@ -2,7 +2,7 @@ import { defineConfig } from "tsup";
 
 export default defineConfig({
   entry: ["src/index.ts"],
-  format: ["esm", "cjs"],
+  format: ["esm"],
   dts: true,
   clean: true,
   sourcemap: false,
@@ -11,7 +11,7 @@ export default defineConfig({
   target: "node22",
   outDir: "dist",
   minify: false,
-  cjsInterop: true,
+  cjsInterop: false,
   // Bundle runtime deps so the .tgz / npm install is self-contained.
   // `zod` is required at runtime by the options schema and would otherwise
   // need a peer install when the plugin is loaded directly from a file path