feat: remote PathBar Tab key triggers BrowseRequest when no suggestions

[aeroxy]

Previously, Tab in the remote address bar only completed from cached suggestions (remoteEntries). If the cache was stale or empty, Tab did nothing — unlike the local pane which always fetches fresh from /api/browse.

Added an optional onTabComplete callback to PathBar/FilePane. When Tab is pressed with no suggestions, it fires onTabComplete(inputValue). The remote pane wires this to handleRemoteNavigateTo, sending a BrowseRequest over WS so local and remote share the same Tab completion behavior.

Summary by CodeRabbit

• New Features
  • Tab-completion in the file path input now activates when no autocomplete suggestions are present, enabling quicker path entry.
  • Tab-completion/navigation is now supported from remote file panes, allowing tab-triggered completion to initiate remote navigation when connected.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: f9135936-a7b7-4d62-a92c-20ea692e58f9

📥 Commits

Reviewing files that changed from the base of the PR and between ffc4d97 and 1493b30.

📒 Files selected for processing (1)

• frontend/src/components/PathBar.tsx

🚧 Files skipped from review as they are similar to previous changes (1)

• frontend/src/components/PathBar.tsx

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📝 Walkthrough

Walkthrough

This PR threads an optional onTabComplete callback from App -> FilePane -> PathBar. PathBar invokes the callback when Tab is pressed with no suggestions, and App supplies handleRemoteNavigateTo to handle remote navigation completions.

Changes

Tab-completion callback threading

Layer / File(s)	Summary
PathBar tab-completion handler and interface frontend/src/components/PathBar.tsx	PathBarProps adds optional onTabComplete?: (input: string) => void. When Tab is pressed and suggestions list is empty, the default action is prevented and the callback is invoked with the current input value.
FilePane prop forwarding frontend/src/components/FilePane.tsx	FilePaneProps declares the optional onTabComplete prop, FilePane destructures it from props, and passes it through to the PathBar component.
App-level handler connection frontend/src/App.tsx	Remote FilePane component receives onTabComplete={handleRemoteNavigateTo} to wire the existing remote navigation handler to tab-completion events.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Poem

🐰 I hop across the code with glee,
Threading callbacks quietly,
When Tab arrives and hints are thin,
I nudge the path and then begin,
A little leap — the file's within! 🥕

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and specifically describes the main change: adding Tab key handling in the remote PathBar to trigger a BrowseRequest when no suggestions are available, directly matching the core functionality introduced across the three modified files.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

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• Create stacked PR
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🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch dev

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[gemini-code-assist]

Code Review

This pull request introduces an onTabComplete callback prop across the App, FilePane, and PathBar components to handle tab completion when no suggestions are available. The review feedback points out a redundant type intersection in the PathBar component signature, as onTabComplete is already defined in PathBarProps.