refactor: add xai plugin-sdk boundary canary (#61548)

* docs: plan real plugin-sdk workspace rollout

* build: add xai plugin-sdk boundary canary

* build: generate plugin-sdk package types

* build: hide plugin-sdk core export

* build: alias scoped plugin-sdk runtime imports

* build: repair plugin-sdk boundary drift

* fix(plugins): remove duplicated plugin-sdk entrypoints

* test(plugins): make tsc boundary canary portable

---------

Co-authored-by: Vincent Koc <vincentkoc@ieee.org>

packages/plugin-sdk/tsconfig.json

@@ -0,0 +1,19 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "declaration": true,
+    "declarationMap": false,
+    "emitDeclarationOnly": true,
+    "ignoreDeprecations": "6.0",
+    "noEmit": false,
+    "noEmitOnError": false,
+    "outDir": "dist",
+    "rootDir": "../.."
+  },
+  "include": [
+    "src/**/*.ts",
+    "../../src/types/**/*.d.ts",
+    "../../packages/memory-host-sdk/src/**/*.ts"
+  ],
+  "exclude": ["node_modules", "dist", "../../src/**/*.test.ts"]
+}