Add git utilities module to registry

- Implement getChangedFiles, getUnstagedFiles, getStagedFiles with async/sync variants
- Add isChanged, isUnstaged, isStaged file checking functions
- Support caching, filtering by cwd, and absolute/relative paths
- Handle symlinks properly with realpathSync
- Parse git porcelain format correctly
- Export via registry/package.json

Author: jdalton

.github/workflows/_local-not-for-reuse-provenance.yml

@@ -16,7 +16,7 @@ on:
           - '1'
 
 permissions:
-  contents: read
+  contents: write
   id-token: write
 
 jobs:

.github/workflows/provenance.yml

@@ -61,7 +61,7 @@ on:
         required: false
 
 permissions:
-  contents: read
+  contents: write
   id-token: write
 
 concurrency:

registry/package.json

@@ -1078,6 +1078,10 @@
       "types": "./dist/lib/functions.d.ts",
       "default": "./dist/lib/functions.js"
     },
+    "./lib/git": {
+      "types": "./dist/lib/git.d.ts",
+      "default": "./dist/lib/git.js"
+    },
     "./lib/globs": {
       "types": "./dist/lib/globs.d.ts",
       "default": "./dist/lib/globs.js"