chore: update TypeScript 5→6, migrate moduleResolution to bundler

TypeScript 6 deprecates moduleResolution "node" (node10).
Updated tsconfig.json to use "bundler" which is appropriate
for projects using unbuild.

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

Author: yamatatsu

package.json

@@ -53,7 +53,7 @@
     "concurrently": "^9.2.1",
     "husky": "^9.0.11",
     "prettier": "^3.2.5",
-    "typescript": "^5.4.3",
+    "typescript": "^6.0.2",
     "unbuild": "^3.6.1",
     "vite": "^8.0.3",
     "vitest": "^4.1.2"

pnpm-lock.yaml

@@ -28,7 +28,7 @@
     /* Modules */
     "module": "esnext" /* Specify what module code is generated. */,
     // "rootDir": "./",                                  /* Specify the root folder within your source files. */
-    "moduleResolution": "node" /* Specify how TypeScript looks up a file from a given module specifier. */,
+    "moduleResolution": "bundler" /* Specify how TypeScript looks up a file from a given module specifier. */,
     // "baseUrl": "./",                                  /* Specify the base directory to resolve non-relative module names. */
     // "paths": {},                                      /* Specify a set of entries that re-map imports to additional lookup locations. */
     // "rootDirs": [],                                   /* Allow multiple folders to be treated as one when resolving modules. */