Restore grouped project filtering in Sidebar V2

[shivamhwp]

Why

Sidebar V2 treats environment-scoped copies of the same repository as separate projects. Users therefore see duplicate project entries and selecting one copy hides threads belonging to the other environment.

Root cause

Sidebar V2 filters directly by one physical environment/project pair instead of using the logical-project grouping already available to the legacy sidebar.

Fix

• build logical project snapshots for Sidebar V2
• filter active and settled threads by every physical member of the selected logical project
• retain stale duplicate project references when resolving groups
• preserve the configured project order for grouped snapshots

This PR is intentionally limited to Sidebar V2 filtering. New-thread pickers, settings, and mobile behavior are split into follow-up PRs.

Verification

• vp lint on the five changed web files
• vp run --filter @t3tools/web typecheck
• vp test run apps/web/src/components/Sidebar.logic.test.ts apps/web/src/environmentGrouping.test.ts — 85 tests passed

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Note

Medium Risk
Changes how Sidebar V2 scopes visible threads and resolves project groups; incorrect membership mapping could hide or mis-attribute threads, but logic is isolated and heavily unit-tested.

Overview
Sidebar V2 now lists and filters by logical project groups (same repo across environments) instead of one physical environmentId:projectId per row, so duplicate project entries disappear and scoping a group shows threads from every member environment.

The sidebar builds grouped snapshots via buildSidebarProjectSnapshots, applies saved manual order when sidebarProjectSortOrder is manual, and sorts groups with new sortLogicalProjectsForSidebar (recent thread activity otherwise). Project filter scope keys use projectKey; active/settled thread lists match any ref in memberProjectRefs.

Grouping helpers now collect memberProjectRefs from all input projects (including stale duplicates routed into a logical group), and add buildSidebarProjectPickerEntries for one entry per logical group with a preferred-environment target—covered by tests; picker UI is left to follow-ups per the PR scope.

^{Reviewed by Cursor Bugbot for commit c0f0ff2. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Restore grouped project filtering in Sidebar V2 with logical project scoping

• Groups projects logically across environments in SidebarV2.tsx, scoping thread lists to all member project refs within a selected logical group.
• Adds sortLogicalProjectsForSidebar in Sidebar.logic.ts to order groups by thread activity (ignoring archived threads) or preserve manual order when sort is set to manual.
• Extends buildSidebarProjectSnapshots in sidebarProjectGrouping.ts to include all memberProjectRefs across environments per logical group, not just the winning representative members.
• Adds buildSidebarProjectPickerEntries to support selecting a preferred environment-specific project and surfacing it first in the picker list.
• Behavioral Change: project scope keys and UI labels now use logical group projectKey and displayName rather than individual environment-specific project identifiers.

^{Macroscope summarized c0f0ff2.}

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[macroscopeapp]

Approvability

Verdict: Needs human review

3 blocking correctness issues found. This PR introduces runtime behavior changes to sidebar project filtering and grouping. An unresolved high-severity review comment identifies a potential bug in the new buildSidebarProjectPickerEntries function where the fallback logic may target an incorrect workspace.

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[cursor]

Cursor Bugbot has reviewed your changes using high effort and found 1 potential issue.

There are 5 total unresolved issues (including 4 from previous reviews).

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^{Reviewed by Cursor Bugbot for commit d64eeae. Configure here.}