refactor: remove core-trpc from main (scaffoldable via gen core-package trpc)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

packages/core-trpc/package.json

@@ -1,37 +0,0 @@
-{
-  "name": "@repo/core-trpc",
-  "private": true,
-  "version": "0.0.0",
-  "type": "module",
-  "exports": {
-    ".": "./src/index.ts",
-    "./next": "./src/providers/next-provider.tsx",
-    "./tanstack": "./src/providers/tanstack-provider.tsx"
-  },
-  "scripts": {
-    "build": "tsc --noEmit",
-    "lint": "eslint .",
-    "typecheck": "tsc --noEmit",
-    "test": "vitest run --passWithNoTests"
-  },
-  "dependencies": {
-    "@repo/core-api": "workspace:*",
-    "@trpc/client": "^11.0.0",
-    "@trpc/react-query": "^11.0.0",
-    "@trpc/server": "^11.0.0",
-    "@trpc/tanstack-react-query": "^11.1.0",
-    "@tanstack/react-query": "^5.66.0",
-    "react": "^19.0.0",
-    "superjson": "^2.2.1"
-  },
-  "devDependencies": {
-    "@repo/core-eslint": "workspace:*",
-    "@repo/core-testing": "workspace:*",
-    "@repo/core-typescript": "workspace:*",
-    "@testing-library/jest-dom": "^6.5.0",
-    "@testing-library/react": "^16.0.0",
-    "@types/react": "^19.0.0",
-    "jsdom": "^25.0.0",
-    "vitest": "^3.0.0"
-  }
-}