fix: finish 2.9.0 plugin moves and get every check green

vitest.config.ts

@@ -1,24 +1,68 @@
+import fs from "fs";
 import path from "path";
-import { defineConfig } from "vitest/config";
+import { defineConfig, type Plugin } from "vitest/config";
+
+/**
+ * The built plugin bundles the boot tests load (dist/plugins) still reach
+ * compiled core by relative path for a few plugins. Point those imports at
+ * core's source, so the bundle shares the one database and the singletons the
+ * test booted instead of loading a second, uninitialized copy of core.
+ */
+function builtPluginCoreImports(): Plugin {
+  return {
+    name: "built-plugin-core-imports",
+    enforce: "pre",
+    resolveId(source, importer) {
+      if (!importer || !source.startsWith(".")) return null;
+      if (!importer.replace(/\\/g, "/").includes("/dist/plugins/")) return null;
+      const target = path
+        .resolve(path.dirname(importer), source)
+        .replace(/\\/g, "/");
+      const match = /\/dist\/backend\/(backend|types)\/(.*)\.js$/.exec(target);
+      if (!match) return null;
+      const base = path.resolve(__dirname, "src", match[1], match[2]);
+      for (const candidate of [`${base}.ts`, `${base}.tsx`]) {
+        if (fs.existsSync(candidate)) return candidate;
+      }
+      return null;
+    },
+  };
+}
 
 export default defineConfig({
+  plugins: [builtPluginCoreImports()],
   resolve: {
-    alias: {
-      "@termix/plugin-sdk/frontend": path.resolve(
-        __dirname,
-        "./packages/plugin-sdk/src/frontend.ts",
-      ),
-      "@termix/plugin-sdk/ui": path.resolve(
-        __dirname,
-        "./src/ui/plugin-host/sdk-ui.ts",
-      ),
-      "@termix/plugin-host/testing": path.resolve(
-        __dirname,
-        "./src/ui/plugin-host/testing-host.tsx",
-      ),
-      "@/types": path.resolve(__dirname, "./src/types"),
-      "@": path.resolve(__dirname, "./src/ui"),
-    },
+    alias: [
+      {
+        find: "@termix/plugin-sdk/frontend",
+        replacement: path.resolve(
+          __dirname,
+          "./packages/plugin-sdk/src/frontend.ts",
+        ),
+      },
+      {
+        find: "@termix/plugin-sdk/ui",
+        replacement: path.resolve(__dirname, "./src/ui/plugin-host/sdk-ui.ts"),
+      },
+      {
+        find: "@termix/plugin-host/testing",
+        replacement: path.resolve(
+          __dirname,
+          "./src/ui/plugin-host/testing-host.tsx",
+        ),
+      },
+      // What built plugin frontends import instead of "@/...". D1 removes it.
+      {
+        find: /^@termix\/legacy-core\/ui\/(.*)$/,
+        replacement: path.resolve(__dirname, "./src/ui") + "/$1",
+      },
+      {
+        find: /^@termix\/legacy-core\/types(.*)$/,
+        replacement: path.resolve(__dirname, "./src/types") + "$1",
+      },
+      { find: "@/types", replacement: path.resolve(__dirname, "./src/types") },
+      { find: "@", replacement: path.resolve(__dirname, "./src/ui") },
+    ],
   },
   test: {
     globals: true,