📚 Sync project-specs.md and package.json with current state

project-specs.md:
- Replace Prettier/ESLint/Vite/Vitest references with oxfmt/oxlint/oxc
  and TypeScript 7 / node --test
- Drop @tsconfig/strictest note; rules are inlined in tsconfig.json,
  enumerated explicitly
- Document oxlint rule disables (no-undefined, sort-keys, id-length,
  no-named-export) and test-file overrides (no-unused-expressions,
  no-empty-file, no-nodejs-modules, no-magic-numbers)
- Document Node 26 / .node-version / engines.node / CI follow
- Document allowImportingTsExtensions + rewriteRelativeImportExtensions
  for the node --strip-types quirk
- Replace Vite/vitest coverage example with c8 + node --test
- Sync scripts section: drop check:eslint, check:prettier and their
  fix:* counterparts; add check:oxlint/check:oxfmt/fix:oxlint/fix:oxfmt
- Add current source layout (index.ts, match.ts, pattern.ts, index.test.ts)
- Update VSCode integration section with actual settings.json and
  extensions.json contents
- Document the actual commit history with gitmoji prefixes
- Fix 'initilizing' typo
- Drop 'changesets is a devDep' claims (changesets is not installed)

package.json:
- Move @oxfmt/binding-* and @oxlint/binding-* from devDependencies to
  optionalDependencies so the right binding is selected per platform
  (CI on Ubuntu gnu gets the gnu binding automatically, not the
  local musl one)
- Extend check:outdated to ignore the platform-specific bindings (they
  show as 'not installed' on the current platform, which is correct
- Add cspell words: gitmoji, dbaeumer, msvc (the latter for the Windows
  binding variant). Drop the unused 'nocheck' word

README.md:
- Drop the 'changesets is available as a devDep' line; changesets
  isn't installed

package.json

@@ -34,7 +34,7 @@
         "build": "tsc -p tsconfig.build.json",
         "check": "npm run check:oxlint && npm run check:oxfmt && npm run check:tsc && npm run check:cspell && npm run check:package && npm run check:outdated",
         "check:cspell": "cspell .",
-        "check:outdated": "check-outdated",
+        "check:outdated": "check-outdated --ignore-pre-releases --ignore-packages @oxfmt/binding-darwin-arm64,@oxfmt/binding-darwin-x64,@oxfmt/binding-linux-arm64-gnu,@oxfmt/binding-linux-arm64-musl,@oxfmt/binding-linux-x64-gnu,@oxfmt/binding-linux-x64-musl,@oxfmt/binding-win32-x64-msvc,@oxlint/binding-darwin-arm64,@oxlint/binding-darwin-x64,@oxlint/binding-linux-arm64-gnu,@oxlint/binding-linux-arm64-musl,@oxlint/binding-linux-x64-gnu,@oxlint/binding-linux-x64-musl,@oxlint/binding-win32-x64-msvc",
         "check:oxfmt": "oxfmt --check src",
         "check:oxlint": "oxlint src",
         "check:package": "sort-package-json --check",
@@ -49,8 +49,6 @@
         "use:git-commit-message": "cp commit-message-template .git/COMMIT_EDITMSG || true"
     },
     "devDependencies": {
-        "@oxfmt/binding-linux-x64-musl": "^0.66.0",
-        "@oxlint/binding-linux-x64-musl": "^1.81.0",
         "@types/node": "^22.10.0",
         "c8": "^10.1.3",
         "check-outdated": "^2.13.0",
@@ -64,6 +62,22 @@
         "type-fest": "^4.40.1",
         "typescript": "^7.0.2"
     },
+    "optionalDependencies": {
+        "@oxfmt/binding-darwin-arm64": "^0.66.0",
+        "@oxfmt/binding-darwin-x64": "^0.66.0",
+        "@oxfmt/binding-linux-arm64-gnu": "^0.66.0",
+        "@oxfmt/binding-linux-arm64-musl": "^0.66.0",
+        "@oxfmt/binding-linux-x64-gnu": "^0.66.0",
+        "@oxfmt/binding-linux-x64-musl": "^0.66.0",
+        "@oxfmt/binding-win32-x64-msvc": "^0.66.0",
+        "@oxlint/binding-darwin-arm64": "^1.81.0",
+        "@oxlint/binding-darwin-x64": "^1.81.0",
+        "@oxlint/binding-linux-arm64-gnu": "^1.81.0",
+        "@oxlint/binding-linux-arm64-musl": "^1.81.0",
+        "@oxlint/binding-linux-x64-gnu": "^1.81.0",
+        "@oxlint/binding-linux-x64-musl": "^1.81.0",
+        "@oxlint/binding-win32-x64-msvc": "^1.81.0"
+    },
     "engines": {
         "node": ">=26"
     },