Add Claude agents and review-and-commit skill

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.claude/agents/taskfile-not-make.md

@@ -0,0 +1,13 @@
+---
+description: Use go-task (Taskfile) instead of Make for task automation
+alwaysApply: true
+---
+
+# Use Taskfile, not Make
+
+This project uses [go-task](https://taskfile.dev/) (`Taskfile.yaml`) for task automation. **Do not** use Makefiles.
+
+- Task definitions go in `Taskfile.yaml` at the repo root.
+- Use `task <name>` to run tasks (e.g. `task test`, `task db`).
+- Use colon-separated namespacing for related tasks (e.g. `task db:stop`).
+- When adding new automation, add a task to `Taskfile.yaml` rather than creating a Makefile or shell script.