chore: add React Doctor maintenance workflow

Adds a React Doctor batching script for targeted diagnostics cleanup
Adds OpenCode commands for cleanup and review follow-up workflows
Ignores generated local React Doctor reports

.opencode/commands/rd-follow-up.md

@@ -0,0 +1,56 @@
+---
+description: Follow up on a React Doctor PR by addressing Greptile review feedback
+agent: build
+---
+
+You are working in the OpenChamber repository.
+
+Goal: follow up on an existing React Doctor maintenance PR, address Greptile/review bot feedback, and clean up the local batch handoff files when done.
+
+Inspect local React Doctor batch handoff files:
+
+`find .tmp/react-doctor/runs -maxdepth 2 -name batch.json -print 2>/dev/null || true`
+
+Workflow:
+- Read the available `.tmp/react-doctor/runs/*/batch.json` files.
+- Find the most recent batch that has `branchName`, `batchName`, and `prTitle`.
+- Read its `Run ID`, `Batch name`, `Branch name`, `PR title`, and selected files.
+- Use `gh` to find the open PR for that branch or title.
+- If no open PR exists for the batch, stop and report that there is no PR to follow up.
+- Switch to the batch branch using the exact `branchName`.
+- Pull or update the branch from remote if needed.
+- Use `gh` to inspect PR review comments, PR issue comments, review threads if available, and check run summaries if relevant.
+- Focus specifically on Greptile/review bot feedback and actionable reviewer comments.
+- Address actionable comments with minimal follow-up fixes.
+- Keep changes within the original selected files whenever possible.
+- If a review comment requires changes outside the selected files, make only the minimal required supporting change.
+- Do not perform unrelated cleanup.
+- Do not rewrite the original PR.
+- Do not force-push.
+
+After fixes, run:
+
+`bun run doctor -- check-batch --run <run-id>`
+
+`bun run type-check`
+
+`bun run lint`
+
+Delivery:
+- Commit follow-up fixes with a concise message.
+- Push the branch.
+- Reply to addressed review comments using `gh`.
+- For each specific review comment you addressed, reply with what was changed and the follow-up commit hash.
+- If the feedback was a general PR comment, add one general PR comment summarizing what was addressed, commit hashes, and validation results.
+- If a comment is intentionally not addressed, reply with a concise reason.
+- After successful push and replies, delete only the completed batch handoff directory: `.tmp/react-doctor/runs/<run-id>/`.
+- After the follow-up is complete, switch back to `main` and pull the latest remote changes.
+
+Constraints:
+- Work on exactly one React Doctor batch PR.
+- Prefer the most recent batch with an open PR.
+- Do not auto-merge.
+- Do not close the PR.
+- Do not delete handoff files until comments are addressed, validation passes, and follow-up commits are pushed.
+- Do not delete unrelated `.tmp/react-doctor/runs/*` directories.
+- If validation fails and cannot be fixed safely within scope, do not delete the handoff directory.