chore(extension): wire lint-ignore and version-sync for the extension

oxlint/prettier ignore the vendored snapshot-extractor copy and the
generated wasm output; check-version-sync gains a check that the
extension manifest tracks the workspace version.

packages/.oxlintrc.json

@@ -5,5 +5,13 @@
     "perf": "warn"
   },
   "plugins": ["react", "typescript", "import", "unicorn"],
-  "ignorePatterns": ["node_modules", "out", "dist", "**/routeTree.gen.ts", "**/*.gen.*"]
+  "ignorePatterns": [
+    "node_modules",
+    "out",
+    "dist",
+    "**/routeTree.gen.ts",
+    "**/*.gen.*",
+    "op-chrome-extension/vendor/**",
+    "op-chrome-extension/wasm/**"
+  ]
 }

packages/.prettierignore

@@ -0,0 +1,12 @@
+# Read by `oxfmt` (it honours .gitignore and .prettierignore in this directory).
+#
+# The Chrome extension ships a byte-identical copy of the Rust DOM extractor
+# (`crates/op-html/assets/snapshot-extractor.js`). Formatting it here would
+# break `op-chrome-extension/scripts/check-extractor-sync.sh` — the copy is
+# only ever refreshed from the canonical asset.
+op-chrome-extension/vendor/
+
+# wasm-bindgen output for the extension's Rust logic core, regenerated by
+# `op-chrome-extension/scripts/build-wasm.sh`. Generated code is never edited,
+# so formatting it would only produce churn.
+op-chrome-extension/wasm/

tools/check-version-sync.sh

@@ -344,6 +344,15 @@ validate_package_versions() {
     fi
 }
 
+validate_chrome_extension_manifest_version() {
+    manifest=packages/op-chrome-extension/manifest.json
+    manifest_version=$(jq -r '.version' "$manifest")
+    if [[ "$manifest_version" != "$current_version" ]]; then
+        report_missing "$manifest" \
+            "Chrome extension manifest version ${manifest_version} must match Cargo workspace version ${current_version}; edit the \"version\" field (scripts/sync-version.sh does not rewrite this file — see packages/op-chrome-extension/README.md)"
+    fi
+}
+
 validate_release_tag() {
     tag_name=
     if [[ "${GITHUB_REF:-}" == refs/tags/v* ]]; then
@@ -411,6 +420,7 @@ validate_rust_product_version_producers() {
 
 validate_workspace_package_versions
 validate_package_versions
+validate_chrome_extension_manifest_version
 validate_release_tag
 validate_cli_bundle_version_template
 validate_rust_product_version_producers