[pull] main from microsoft:main - #1609

Classic UI leaves a 1px top border on the bottom-panel title. Floating
panels already make that border transparent, but the width still takes
layout space and shifts the 32px pills off-center (5px top / 3px bottom
instead of the editor tab bar's uniform 4px gutter).

Fixes #331013

Reset the whole border-top shorthand (none) instead of only its width so
a future width re-introduction cannot silently restore the off-center
gutter. Trim the regression test to assert only the properties this fix
owns (border width/style and the pill gutter) rather than layout values
owned by other rules.

Co-authored-by: Copilot <198982749+copilot@users.noreply.github.com>

* Remove dependency on configuration service

* Sync proxy settings to ambient agent hosts

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Include Kerberos SPN in network diagnostics

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

… non-active editor groups (#331623)

Fix hover background color for inactive tabs in active and non-active editor groups

Co-authored-by: mrleemurray <mrleemurray@users.noreply.github.com>

* fix: dispose main thread text editors

* simplify

* remove whitespace

* test: make editor listener assertion robust

* fix

* fix

* fix: missing removed editors id

* add unit test

* simplify code

* Potential fix for pull request finding

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…chilla

Improve CSS selector performance and maintainability

* Fix Workspace Trust transition promise ordering

* fix: improve focus handling after deleting trusted URI item if participant takes some time

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Co-authored-by: SteVen Batten <sbatten@microsoft.com>
Co-authored-by: Dmitriy Vasyura <dmitriv@microsoft.com>

…rkspaces that do not have a GitHub remote (#331614)

* Fix npm view --json returning array in npm 12+

npm 12 changed npm view --json to always return an array [{...}]
instead of {...}. Handle both formats by checking Array.isArray.

Fixes #327228

* Extract npm view output parsing into a testable module with tests

Move the `npm view --json` parsing out of `npmView()` into a pure
`parseNpmViewOutput()` function so the npm 12+ array-format fix can be
unit tested without the vscode API. Add a mocha suite covering object
and array output, dist-tags.latest preference and fallback, missing
fields, invalid and non-object output, and register the npm extension
in .vscode-test.js so CI runs the tests.

fix: update file icon mask properties for improved styling

Co-authored-by: mrleemurray <mrleemurray@users.noreply.github.com>

Run @vscode/markdown-editor Dependabot checks at 4:00 PM Seattle time so updates arrive ahead of the next morning Insiders build.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 117c2e66-9fff-4571-8b35-13094db9d453

Update @vscode/codicons to version 0.0.46-37 and add new icons to codiconsLibrary

Co-authored-by: mrleemurray <mrleemurray@users.noreply.github.com>

* Initial plan

* Batch agent host session notifications

Co-authored-by: benibenj <44439583+benibenj@users.noreply.github.com>

* Preserve session notification ordering

Co-authored-by: benibenj <44439583+benibenj@users.noreply.github.com>

* Use event helpers for session batching

Co-authored-by: connor4312 <2230985+connor4312@users.noreply.github.com>

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Co-authored-by: benibenj <44439583+benibenj@users.noreply.github.com>
Co-authored-by: connor4312 <2230985+connor4312@users.noreply.github.com>

* sessions: fix: lay out chat grid before reconciliation

Apply the existing outer layout to a newly created session grid before synchronous reconciliation can query adjacent views. Add coverage for opening and focusing a session whose active chat is a child chat.

Fixes #331616

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: b53c514c-a525-410f-94bc-213bc6bdaaf1

* sessions: test: verify active child layout and focus

Assert that reconciliation lays out the replacement chat view and scope the focus check to the view owner document.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: b53c514c-a525-410f-94bc-213bc6bdaaf1

* sessions: fix: guard chat grid neighbor lookup before layout

Track layout for the current session grid so initial reconciliation uses logical group order until geometric neighbor queries are safe. Preserve reconcile-before-layout ordering and cover that the transient composer receives no layout calls.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: b53c514c-a525-410f-94bc-213bc6bdaaf1

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: b53c514c-a525-410f-94bc-213bc6bdaaf1

fix: center Modern UI panel title tabs in the 32px header

* Modern UI: Add background colors for the activity bar in various themes

* Modern UI: Update inactive activity bar background color reference and add test for inheritance

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Co-authored-by: mrleemurray <mrleemurray@users.noreply.github.com>

)

* feat: preserve user-defined casing for File Explorer workspace titles

* feat: add support for preserving merged workspace name casing in File Explorer

* test: cover the Explorer workspace name casing decision

Extract the untitled-vs-named workspace decision into a testable helper and
assert the resulting header transforms for untitled, named and single folder
workspaces instead of only asserting on hand written CSS classes.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

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Co-authored-by: mrleemurray <mrleemurray@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>