⬆️ Upgrade dependencies

Bump every direct dependency to the latest registry version: cspell
10.3.5, oxfmt 0.71.0, oxlint 1.86.0, oxlint-tsgolint 7.0.2003,
@types/node 26.6.3, the LSP protocol types 3.18.4 and 85 transitive
entries. oxfmt is the only range widened (^0.70.0 -> ^0.71.0), because
0.x minors are breaking under semver and `npm update` stops at the
range; the rest moved within their existing ranges.

`npm run maintain:outdated` is clean and `npm run verify` is green with
no rule or format fallout. `maintain:knip` reports one configuration
hint — the redundant `src/index.ts` entry pattern in knip.json — but
knip did not move, so the hint predates this bump and stays advisory.

package.json

@@ -88,7 +88,7 @@
         "knip": "^6.34.0",
         "lefthook": "^2.1.12",
         "mdast-util-from-markdown": "^2.0.3",
-        "oxfmt": "^0.70.0",
+        "oxfmt": "^0.71.0",
         "oxlint": "^1.83.0",
         "oxlint-tsgolint": "^7.0.2001",
         "publint": "^0.3.24",