feat(editor): persist and restore the editor window bounds

[My-Denia]

Summary

The editor always opened maximized at a default size, forgetting any resize/reposition from the previous session.

• The editor window now persists its normal bounds and maximized flag (to editor-window.json in the user-data directory) on move, resize, and close, and restores them on the next open.
• Restored bounds are clamped to the work area of the display they were saved on (via screen.getDisplayMatching), so a window saved on a since-disconnected or rearranged monitor cannot come back off-screen.
• A corrupt or hand-edited state file falls back to the default maximized 1200x800 window instead of throwing.
• The export bench window is deliberately excluded — it measures a fixed-size maximized window on purpose and must not load or save this state.

Related issue

Part of #362 — this covers remembering the window size, position, and maximized state. Full-screen mode (which the issue also asks to remember) is intentionally not persisted here: restoring straight into full-screen has platform-specific behavior (notably macOS Spaces) that deserves its own change rather than riding along in this one.

Type of change

• Feature

Release impact

• Minor

Desktop impact

• Not platform-specific

Screenshots / video

Not a visual change beyond the window opening where it was left; no screenshots.

Testing

• npx vitest run electron/editorWindowState.test.ts at this branch's head: 6 passed — save/load round-trip, missing file, corrupted file, garbage fields, off-screen clamping onto the work area, and the default/bench creation path (bench never loads or saves).
• npx tsc --noEmit and npx tsc -p tsconfig.test.json --noEmit at this branch's head: clean.

Manual verification on Windows 11: resize and move the editor, close it, finish another recording — the editor reopens with the same bounds; maximize before closing and it reopens maximized. Verified on a build whose electron/windows.ts and electron/editorWindowState.ts are byte-identical to this branch.

Notes:

• On Linux, window managers that do not deliver move/resize events reliably are still covered by the close-time save.
• The 800x600 minimum exists both as the BrowserWindow min options and as a clamp floor in the state module; deduplicating those constants is left as-is to keep this change small.

Summary by CodeRabbit

• New Features

  • Editor windows now restore their previous size, position, and maximized state when reopened.
  • Restored windows are automatically kept within the available display area.
  • Standard editor window changes are saved for future sessions.

• Bug Fixes

  • Prevented temporary bench windows from affecting or restoring saved editor window settings.
  • Added safeguards for invalid or corrupted saved window data, including unusable dimensions and invalid maximized states.

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ℹ️ Recent review info

⚙️ Run configuration

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Run ID: 37e788d8-fd87-4932-9fd5-f5bc7bd020bd

📥 Commits

Reviewing files that changed from the base of the PR and between b6ca4ea and 4eacada.

📒 Files selected for processing (2)

• electron/editorWindowState.test.ts
• electron/editorWindowState.ts

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📝 Walkthrough

Walkthrough

The editor now validates persisted window state, restores and clamps saved bounds, conditionally maximizes windows, and persists non-bench window changes during movement, resizing, and close events.

Changes

Editor window state

Layer / File(s)	Summary
State validation and persistence electron/editorWindowState.ts, electron/editorWindowState.test.ts	Persisted records must have positive dimensions and a boolean maximized field. Tests cover missing, corrupted, invalid, and round-trip state files.
Editor creation and lifecycle integration electron/windows.ts	Editor creation restores clamped state, handles bench windows separately, applies conditional maximization, and saves non-bench state on window lifecycle events.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Merge Risk: ⚪ Minimal · up to 4eaca

The editor now restores validated window bounds and maximization state while safely falling back for invalid data and excluding the export bench; no actionable merge-blocking risk remains after normal checks.

Sequence Diagram(s)

sequenceDiagram
  participant windows.ts
  participant app
  participant editorWindowState
  participant FileSystem
  windows.ts->>app: getPath("userData")
  windows.ts->>editorWindowState: loadEditorWindowState(userData)
  editorWindowState->>FileSystem: read editor-window.json
  windows.ts->>editorWindowState: clampRectToWorkArea(saved, workArea)
  windows.ts->>editorWindowState: resolveEditorCreation(isBench, saved)
  windows.ts->>editorWindowState: saveEditorWindowState(userData, state)
  editorWindowState->>FileSystem: write editor-window.json

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Suggested reviewers: etiennelescot

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 10.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 10 functions across 3 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the primary change: persisting and restoring editor window bounds.
Description check	✅ Passed	The description includes all required template sections. It explains the change, related issue, feature and release classifications, platform impact, screenshot rationale, testing commands, and manual…
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.

Full details: Description check

Explanation

The description includes all required template sections. It explains the change, related issue, feature and release classifications, platform impact, screenshot rationale, testing commands, and manual verification.

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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

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Inline comments:
In `@electron/editorWindowState.ts`:
- Around line 41-53: Update the editor window-state validation to require
strictly positive width and height values and to accept maximized only when it
is a boolean, preserving valid-state parsing. Add regression cases covering zero
dimensions and non-boolean maximized values, ensuring both are rejected so the
documented defaults are used.

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Fix all unresolved CodeRabbit comments on this PR:

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 63193c74-b767-4b49-9cce-e00cdbc152c0

📥 Commits

Reviewing files that changed from the base of the PR and between 059f4e8 and b6ca4ea.

📒 Files selected for processing (3)

• electron/editorWindowState.test.ts
• electron/editorWindowState.ts
• electron/windows.ts

Included review availability: Your plan provides up to 8 included reviews per hour; 5 remain after this review.

[My-Denia]

Fixed in 4eacada: the parser now rejects zero or negative dimensions and any non-boolean maximized outright, so a hand-edited state file falls back to the documented default maximized window instead of restoring a clamped-up rect. Regression tests cover zero/negative dimensions and string/number/null/missing maximized.