## Summary
- Add `include_hidden` parameter to the `list_files` tool schema that
allows including .dyad files (normally git-ignored) in results
- Update UI components (`DyadListFiles`, `DyadMarkdownParser`) to
display "(include hidden)" indicator when the option is used
- Add E2E test to verify the new functionality works correctly

## Test plan
- [x] E2E test for `list_files` with `include_hidden=true` added
- [x] All existing tests pass
- [x] Lint and type checks pass

🤖 Generated with [Claude Code](https://claude.com/claude-code)
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<!-- This is an auto-generated description by cubic. -->
---
## Summary by cubic
Adds an include_hidden option to the list_files tool so the agent can
include .dyad files in results when needed. Updates the UI label and
consent preview, and adds an e2e test to cover the behavior.

- **New Features**
- Tool: include_hidden boolean (default false). When true, includes
.dyad files from the app root (regardless of directory filter), expands
the ignore list, dedupes/sorts results, and updates consent preview and
counts.
- UI: DyadListFiles shows “(include hidden)” when used; Markdown parser
passes the attribute through.
- Tests: Adds minimal-with-dyad fixture and e2e to verify .dyad files
appear in the list and snapshot.

<sup>Written for commit a60579274594888e75fd9cb9d4d6ce5437255b16.
Summary will update on new commits.</sup>

<!-- End of auto-generated description by cubic. -->

---------
Co-authored-by: Will Chen <willchen90@gmail.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
Co-authored-by: claude[bot] <41898282+claude[bot]@users.noreply.github.com>