feat(desktop): default markdown files to preview view

[Kitenite]

Summary

• Bump markdownPreviewView priority from option to default so markdown files open in the rendered preview by default instead of raw source.
• Per-pane viewId is already persisted, so anyone who toggles to raw stays on raw for that pane; only fresh pane opens are affected.

Test plan

• Open a .md file from the v2 file tree → renders in preview by default
• Toggle to raw view → stays on raw across re-focus and tab switching for that pane
• Open a different .md file → also defaults to preview
• Non-markdown text files still open in CodeView

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Summary by cubic

Markdown files now open in the rendered Preview by default. We set the markdownPreviewView priority to default; per-pane view choice persists, so switching to Raw keeps Raw for that pane while new panes still default to Preview.

^{Written for commit e5d1b59. Summary will update on new commits. Review in cubic}

Summary by CodeRabbit

• Improvements
  • Markdown preview is now the default view when opening markdown files, streamlining file viewing workflow.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 8b1e75aa-33a2-481d-b8f7-bb69fe633252

📥 Commits

Reviewing files that changed from the base of the PR and between 6cb2099 and e5d1b59.

📒 Files selected for processing (1)

• apps/desktop/src/renderer/routes/_authenticated/_dashboard/v2-workspace/$workspaceId/hooks/usePaneRegistry/components/FilePane/registry/views/MarkdownPreviewView/index.ts

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📝 Walkthrough

Walkthrough

The markdown preview view's priority setting is elevated from "option" to "default" in the file pane registry, adjusting its selection hierarchy among available file views within the dashboard workspace interface.

Changes

Cohort / File(s)	Summary
Markdown Preview View Configuration apps/desktop/src/renderer/routes/_authenticated/_dashboard/v2-workspace/$workspaceId/hooks/usePaneRegistry/components/FilePane/registry/views/MarkdownPreviewView/index.ts	Updated markdownPreviewView pane priority from "option" to "default", modifying its prioritization relative to other file views.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 A markdown view hops to the fore,
From option to default, evermore!
The pane registry dances with glee,
Priority's set where it ought to be! ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the main change: setting markdown files to default to preview view instead of raw source.
Description check	✅ Passed	The description covers the summary, test plan, and includes auto-generated summary; however, it lacks the structured template sections like 'Related Issues', 'Type of Change', and 'Additional Notes'.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch default-file-preview

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[greptile-apps]

Greptile Summary

This PR bumps markdownPreviewView.priority from "option" to "default", making .md files open in the rendered preview by default. The change is correct: the PRIORITY_RANK map scores default at 4 vs builtin at 3 (used by codeView), so resolveViews will now sort the preview view first and pickDefaultView returns it as the initial selection.

Confidence Score: 5/5

Safe to merge — the single-line change is correct and consistent with how other views (e.g., BinaryWarningView) already use "default" priority.

The change is minimal and mechanically correct: "default" (rank 4) > "builtin" (rank 3), so resolveViews will place markdownPreviewView first for .md files. Per-pane viewId persistence means existing raw-view preferences are unaffected. No logic issues or edge cases were found.

No files require special attention.

Important Files Changed

Filename	Overview
apps/desktop/src/renderer/routes/_authenticated/_dashboard/v2-workspace/$workspaceId/hooks/usePaneRegistry/components/FilePane/registry/views/MarkdownPreviewView/index.ts	One-line priority bump from "option" (rank 1) to "default" (rank 4), correctly making the preview view sort above codeView (rank 3) for markdown files

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[Open .md file] --> B{resolveViews}
    B --> C[Filter matching views]
    C --> D{Any exclusive?}
    D -- Yes --> E[Return exclusives only]
    D -- No --> F[Sort by PRIORITY_RANK desc]
    F --> G["markdownPreviewView\n(default = 4)"]
    F --> H["codeView\n(builtin = 3)"]
    G --> I[pickDefaultView → index 0]
    I --> J{Per-pane viewId persisted?}
    J -- Yes --> K[Use persisted viewId]
    J -- No --> L[Open in Preview ← NEW default]

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_{Reviews (1): Last reviewed commit: "feat(desktop): default markdown files to..." | Re-trigger Greptile}

[github-actions]

🧹 Preview Cleanup Complete

The following preview resources have been cleaned up:

• ⚠️ Neon database branch

Thank you for your contribution! 🎉