Enhance PR agent configuration with review settings and workflow updates

- Added new review settings in .pr_agent.toml to enable auto-approval and define review effort requirements.
- Updated the PR agent workflow to include additional environment variables for auto review, auto describe, and auto improve functionalities.

Author: manhinhang

.github/workflows/pr-agent.yml

@@ -30,6 +30,10 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           OPENROUTER_API_KEY: ${{ secrets.OPENROUTE_API_KEY }}
           OPENROUTER_BASE_URL: https://openrouter.ai/api/v1
+          github_action_config.auto_review: "true" # enable\disable auto review
+          github_action_config.auto_describe: "true" # enable\disable auto describe
+          github_action_config.auto_improve: "true" # enable\disable auto improve
+          github_action_config.pr_actions: '["opened", "reopened", "ready_for_review", "review_requested"]'
         # with:
         #   args: |
         #     --mode=review

.pr_agent.toml

@@ -1,3 +1,12 @@
 [config]
 model="openrouter/deepseek/deepseek-r1-0528-qwen3-8b:free"
 fallback_models=["openrouter/deepseek/deepseek-r1-0528:free"]
+
+
+[pr_reviewer]
+extra_instructions = ""
+enable_review_labels_security = false
+enable_review_labels_effort = false
+require_can_be_split_review = true
+enable_auto_approval = true
+maximal_review_effort = 1