ci: add reusable OpenCodeReview PR workflow

.github/workflows/nightly.yml

@@ -23,7 +23,7 @@ jobs:
     timeout-minutes: 45
     env:
       OPENCODE_API_KEY: ${{ secrets.OPENCODE_API_KEY }}
-      C4O_LIVE_MODEL: ${{ inputs.model || vars.E2E_LIVE_MODEL || 'muse-spark-1.3-contributor-free' }}
+      C4O_LIVE_MODEL: ${{ inputs.model || vars.OPENCODE_MODEL || 'opencode/muse-spark-1.3-contributor' }}
     steps:
       - name: Check for a provider key
         id: key

.github/workflows/ocr.yml

@@ -0,0 +1,41 @@
+name: OpenCodeReview
+
+concurrency:
+  group: >-
+    ${{
+      (
+        github.event_name == 'pull_request_target'
+        || (
+          github.event_name == 'issue_comment'
+          && github.event.issue.pull_request
+          && github.event.comment.user.type != 'Bot'
+          && (
+            github.event.comment.author_association == 'MEMBER'
+            || github.event.comment.author_association == 'OWNER'
+            || github.event.comment.author_association == 'COLLABORATOR'
+          )
+          && (
+            startsWith(github.event.comment.body, '/open-code-review')
+            || startsWith(github.event.comment.body, '@open-code-review')
+          )
+        )
+      )
+      && format('ocr-{0}', github.event.pull_request.number || github.event.issue.number)
+      || format('noop-{0}', github.run_id)
+    }}
+  cancel-in-progress: true
+
+on:
+  pull_request_target:
+    types: [opened, synchronize, reopened]
+  issue_comment:
+    types: [created]
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  review:
+    uses: Heretek-AI/.github/.github/workflows/ocr-review.yml@cfc9918e58a4dc93d59157748dd08ec0bdfddb59 # main
+    secrets: inherit