Fix npm run eslintfix and enable ESLint caching

Running eslintfix via Bazel (safe_bazelisk run
//polygerrit-ui/app:lint_bin) failed with ESLint 9 because passing
absolute target paths outside Bazel's runfiles directory was
rejected as ignored, and Bazel runfiles are read-only.

Update eslintfix and eslintfix:modified to execute eslint directly.
Also add --cache to eslintfix and lint script definitions in
package.json and add /.eslintcache to .gitignore.

This reduces execution time for eslintfix and lint from ~25s down
to ~0.8s (~30x speedup).

Release-Notes: skip
Change-Id: I39e9a8f391697e70b5deb1b029ed01ed0a16a371

.gitignore

diff --git a/.gitignore b/.gitignore
index 2d146c8..cc71eb5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,6 +13,7 @@
 /.aspect/
 /.apt_generated
 /.apt_generated_tests
+/.eslintcache
 /.bazel_path
 /.classpath
 /.factorypath

MODULE.bazel.lock

diff --git a/MODULE.bazel.lock b/MODULE.bazel.lock
index 7ea3e69..fe7c2be 100644
--- a/MODULE.bazel.lock
+++ b/MODULE.bazel.lock
@@ -318,7 +318,7 @@
         "recordedInputs": [
           "REPO_MAPPING:aspect_rules_ts+,aspect_rules_ts aspect_rules_ts+",
           "REPO_MAPPING:aspect_rules_ts+,bazel_tools bazel_tools",
-          "FILE:@@//package.json f230bdb8c76c59a925ec0727a1decc727388d47d4b20d95b4e5bcf328edc0c79"
+          "FILE:@@//package.json 582559a124fbee5740e1c3a5b4167aa579a1deb338e413bd82f358940feae420"
         ],
         "generatedRepoSpecs": {
           "npm_typescript": {

package.json

diff --git a/package.json b/package.json
index 97acc45..75a1a9f 100644
--- a/package.json
+++ b/package.json
@@ -66,11 +66,11 @@
     "test:single:coverage": "yarn --cwd=polygerrit-ui test:single:coverage",
     "safe_bazelisk": "if which bazelisk >/dev/null; then bazel_bin=bazelisk; else bazel_bin=bazel; fi && $bazel_bin",
     "eslint": "npm run safe_bazelisk test polygerrit-ui/app:lint_test",
-    "eslintfix": "npm run safe_bazelisk run polygerrit-ui/app:lint_bin -- -- --fix $(pwd)/polygerrit-ui/app",
-    "eslintfix:modified": "git diff --name-only --diff-filter=d | grep -E 'polygerrit-ui/app/.*\\.(js|ts)$' | sed 's|^polygerrit-ui/app/||' | xargs -r npm run safe_bazelisk run polygerrit-ui/app:lint_bin -- -- --fix",
+    "eslintfix": "eslint -c polygerrit-ui/app/eslint-bazel.config.js polygerrit-ui/app --fix --cache",
+    "eslintfix:modified": "git diff --name-only --diff-filter=d | grep -E 'polygerrit-ui/app/.*\\.(js|ts)$' | xargs -r eslint -c polygerrit-ui/app/eslint-bazel.config.js --fix",
     "litlint": "npm run safe_bazelisk run polygerrit-ui/app:lit_analysis",
     "litlintforCI": "lit-analyzer --strict --rules.no-unknown-property off --rules.no-unknown-tag-name off --rules.no-incompatible-type-binding off --rules.no-incompatible-property-type off --rules.no-invalid-tag-name off --rules.no-property-visibility-mismatch off --rules.no-unknown-attribute off **/elements/**/*.ts",
-    "lint": "eslint -c polygerrit-ui/app/eslint-bazel.config.js polygerrit-ui/app",
+    "lint": "eslint -c polygerrit-ui/app/eslint-bazel.config.js polygerrit-ui/app --cache",
     "gjf": "./tools/gjf.sh run"
   },
   "repository": {