feat(sidebar): add Fixed project sort order and expose sort in Settings

[aimen08]

Problem

The sidebar's default (and only meaningful) sort was Recent Activity, which floats the active project to the top. So selecting or switching a project reshuffled the whole list on every focus — the order was never stable.

Fix

• Add a Fixed sort order that keeps projects in the order they were added — nothing floats on activity or selection — and make it the new default.
• Expose the sort as a picker in Settings › Interface, kept in sync with the sidebar's existing sort menu.
• Recent Activity and Name remain available.

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Project	Deployment	Actions	Updated (UTC)
landing	Ready	Preview, Comment	Jul 18, 2026 5:22pm

[jiweiyuan]

Thanks for this @aimen08 — the problem writeup is spot on. Recent Activity floating the active project on every focus was a real annoyance and killed any spatial memory of the list.

After thinking it through I'm going to go a slightly simpler route: just change the default sort from Recent Activity to Name (#16), rather than adding a new Fixed mode. Two reasons:

• Fixed sorts by the persisted projects array order, but our worktree/discovery reconciliation can reorder that array on focus/git changes — so Fixed could quietly reshuffle again, and Project has no createdAt to anchor it. Name is stable with zero new state.
• Name is also more predictable — you can find a project by first letter.

The idea you're really reaching for — a stable, user-controlled order — is worth doing properly later as an explicit per-project order index + drag-to-reorder (the Xcode/Finder/Dock model), which I'd rather build as its own change than approximate with insertion order.

So I'll close this in favor of #16, but genuinely appreciate you surfacing the issue and the clean PR — hope you'll send more. 🙏

[aimen08]

@jiweiyuan No, I totally understand and I agree. I'd rather have something planned like you mentioned than rush for something that only patches the current issue. And don't worry, I'll send more PRs.