refactor: rename eslint-config + typescript-config to core-eslint + core-typescript

Aligns tooling packages with the core-* naming convention used by all
other foundation packages (core-shared, core-cms, core-api, core-trpc,
core-ui). Updates ~50 files: package.json names, devDependencies,
tsconfig extends, eslint.config imports, vitest.config imports, AGENTS.md
references, and the boundaries plugin patterns to match the new paths.

The tooling-specific patterns in boundaries/elements are now ordered BEFORE
the broader core-* pattern to ensure correct first-match-wins behavior.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packages/core-eslint/package.json

@@ -0,0 +1,21 @@
+{
+  "name": "@repo/core-eslint",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "exports": {
+    "./base": "./base.js",
+    "./next": "./next.js",
+    "./react-internal": "./react-internal.js"
+  },
+  "devDependencies": {
+    "@eslint/js": "^9.20.0",
+    "@typescript-eslint/eslint-plugin": "^8.25.0",
+    "@typescript-eslint/parser": "^8.25.0",
+    "eslint": "^9.20.0",
+    "eslint-config-prettier": "^10.1.0",
+    "eslint-plugin-boundaries": "^4.2.2",
+    "eslint-plugin-turbo": "^2.4.0",
+    "typescript-eslint": "^8.25.0"
+  }
+}