feat(app): add open project button to directory dialog

[arifszn]

Summary

This PR adds a feature to the "Open Project" dialog that allows users to explicitly open a directory path if it's not found in the search results.

Motivation

The current project search functionality has limitations where it only indexes files up to a specific nested level. This makes it impossible to find and open projects that are deeply nested or outside the scanned depth, effectively making them inaccessible via the UI search.

This change provides a fallback mechanism: if a user explicitly types a valid path (Unix or Windows style), they can open it directly even if the search indexer hasn't found it.

Changes

• Adds logic to detect if the search query looks like a path (contains /, \ or starts with ~).
• Displays an "Open [path]" button when no search results are found but a valid path is entered.
• Updates List component to support custom empty messages.
• Ensures the project is added to the sidebar when a new session is started.

Verification

• Verified that typing a path like ~/Dev/my-project or C:\Dev\my-project displays an "Open" button when no results are found.
• Verified that clicking the button opens the project.
• Verified type safety with bun typecheck.

Partially fixes#7577
Partially fixes#7111

[github-actions]

Thanks for your contribution!

This PR doesn't have a linked issue. All PRs must reference an existing issue.

Please:

1. Open an issue describing the bug/feature (if one doesn't exist)
2. Add Fixes #<number> or Closes #<number> to this PR description

See CONTRIBUTING.md for details.

[github-actions]

The following comment was made by an LLM, it may be inaccurate:

Based on my search, I found a highly related PR:

Potential duplicate:

• PR fix(web): support absolute paths in Open Project dialog #9796: fix(web): support absolute paths in Open Project dialog
  • This PR directly addresses supporting absolute paths in the Open Project dialog, which is closely related to PR feat(app): add open project button to directory dialog #10364's feature of detecting path patterns and allowing explicit directory opening.

Related PRs (addressing similar functionality):

• PR feat: improve directory search with path completion and subdirectory listing #6940: feat: improve directory search with path completion and subdirectory listing
  • Improves directory search functionality in project dialogs
• PR fix(app): allow browsing absolute paths on Windows #6624: fix(app): allow browsing absolute paths on Windows
  • Addresses path handling in the app for Windows systems

The PR #9796 seems most relevant as it directly addresses supporting absolute paths in the Open Project dialog, which overlaps with the current PR's goal. You may want to review that PR to ensure no duplicate effort.

[github-actions]

Closing this pull request because it has had no updates for more than 60 days. If you plan to continue working on it, feel free to reopen or open a new PR.