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docs/workflow.md

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+# Workflow
+
+## Branching Model
+
+Follow `BRANCHING.md`:
+
+- Long-lived: `main`, `staging`, `dev`
+- Task branches: `todo/*`, `refactor/*`, `code/*`
+
+## Promotion Path
+
+1. Task branch -> `dev`
+2. `dev` -> `staging`
+3. `staging` -> `main`
+
+## Quality Gates
+
+- `bun run lint`
+- `bun run typecheck`
+- `bun run test`
+- `bun run test:e2e --list`
+
+## Changelog
+
+- Conventional commits required (see `CONTRIBUTING.md`)
+- Generate changelog with:
+
+```bash
+bun run changelog:release
+```