Cherry-pick of #44301 to preview

----
## Closes #43887

## Release Notes:

### Problem
DeepSeek's reasoning mode API requires `reasoning_content` to be
included in assistant messages that precede tool calls. Without it, the
API returns a 400 error:

```
Missing `reasoning_content` field in the assistant message at message index 2
```

### Added/Fixed/Improved
- Add `reasoning_content` field to `RequestMessage::Assistant` in
`crates/deepseek/src/deepseek.rs`
- Accumulate thinking content from `MessageContent::Thinking` and attach
it to the next assistant/tool-call message
- Wire reasoning content through the language model provider in
`crates/language_models/src/provider/deepseek.rs`

### Testing
- Verified with DeepSeek Reasoner model using tool calls
- Confirmed reasoning content is properly included in API requests

Fixes tool-call errors when using DeepSeek's reasoning mode.

---------

Co-authored-by: Ben Brandt <benjamin.j.brandt@gmail.com>

Co-authored-by: Peter König <pek-github@nospam.scanea.de>
Co-authored-by: Ben Brandt <benjamin.j.brandt@gmail.com>

Cherry-pick of #44477 to preview

----
Closes https://github.com/zed-industries/zed/issues/12013

Release Notes:

- Fixed some wasm language extensions failing to spawn on windows

Co-authored-by: Lukas Wirth <lukas@zed.dev>

Cherry-pick of #44459 to preview

----
cc https://github.com/zed-industries/zed/issues/24714

Release Notes:

- N/A *or* Added/Fixed/Improved ...

Co-authored-by: Lukas Wirth <lukas@zed.dev>

Cherry-pick of #44455 to preview

----
Part of https://github.com/zed-industries/zed/issues/44370

Also log when fail to open the project item.

Release Notes:

- N/A

Co-authored-by: Kirill Bulatov <kirill@zed.dev>

Cherry-pick of #44407 to preview

----
Problem statement: When given a line that contained a lot of matches of
your hyperlink regex of choice (thanks to #40305), we would look for
matches
that intersected with currently hovered point. This is *hella*
expensive, because we would re-walk the whole alacritty grid for each
match. With the repro that Joseph shared, we had to go through 4000 such
matches on each frame render.

Problem solution: We now convert the hovered point into a range within
the line (byte-wise) in order to throw away matches that do not
intersect the
hovered range. This lets us avoid performing the unnecessary conversion
when we know it's never going to yield a match range that intersects the
hovered point.

Release Notes:

- terminal: Fixed performance regression when handling long lines.

---------

Co-authored-by: Dave Waggoner <waggoner.dave@gmail.com>

Co-authored-by: Piotr Osiewicz <24362066+osiewicz@users.noreply.github.com>
Co-authored-by: Dave Waggoner <waggoner.dave@gmail.com>

Cherry-pick of #44406 to preview

----
Closes https://github.com/zed-industries/zed/issues/44040
Closes https://github.com/zed-industries/zed/issues/44044
 
Release Notes:

- Fixed incorrect keybindings for `open folder` and `open files` actions
on windows' default keymap

Co-authored-by: Lukas Wirth <lukas@zed.dev>

Cherry-pick of #44395 to preview

----
Both windows paths use .zip, not .tar.gz

Closes #44378

Release Notes:

- acp: Fix codex-acp download path for ARM Windows targets

Co-authored-by: Ben Brandt <benjamin.j.brandt@gmail.com>

Cherry-pick of #44237 to preview

----

Co-authored-by: Bennet Bo Fenner <bennet@zed.dev>

Cherry-pick of #44222 to preview

----
Addresses a regression introduced by
https://github.com/zed-industries/zed/pull/44021 that caused @mentions
and slash commands to stop working if you set
`show_completions_on_input: false` in your settings.

In this case, we should always show these menus, otherwise the features
won't work at all.

Release Notes:

- N/A

Co-authored-by: Ben Brandt <benjamin.j.brandt@gmail.com>

Cherry-pick of #44165 to preview

----
We have seen cases (see
https://github.com/zed-industries/zed/issues/43694) where the user's
shell initialization script includes text that ends up in the output of
the commands we use to detect the platform and shell of the remote. This
solution isn't perfect, but it should address the issue in most
situations since both commands should only output one line.

Release Notes:

- remote: Improve resiliency when initialization scripts output text

Co-authored-by: Agus Zubiaga <agus@zed.dev>

Cherry-pick of #44143 to preview

----
Closes https://github.com/zed-industries/zed/issues/38653

Release Notes:

- Fixed git ignored directories appearing as empty when their content
changes on windows

Co-authored by: Smit Barmase <smit@zed.dev>

Co-authored-by: Lukas Wirth <lukas@zed.dev>

Cherry-pick of #44151 to preview

----
Closes #44148

the existing rate == 0 check inside the timer callback already handles
disabling repeat - it just drops the timer immediately. So the fix
prevents the crash while preserving correct behavior. 

Release Notes:

- Linux (Wayland): Fixed a crash that could occur when
`characters_per_second` was zero

Co-authored-by: Rawand Ahmed Shaswar <rawandahmad698@gmail.com>

Cherry-pick of #44136 to preview

----
Closes #41521

Release Notes:

- Fixed codex web login not working on wsl remotes if no browser is
installed

Co-authored-by: Ben Brandt <benjamin.j.brandt@gmail.com>

Co-authored-by: Lukas Wirth <lukas@zed.dev>
Co-authored-by: Ben Brandt <benjamin.j.brandt@gmail.com>

Cherry-pick of #44109 to preview

----
Fixes a deadlock in the background scanner that occurs on single-core
Linux devices. This happens because the background scanner would `block`
on a background thread waiting for a future, but on single-core Linux
devices there would be no other thread to pick it up. This mostly
affects SSH remoting use cases where it's common for servers to have 1
vCPU.

Closes #43884 
Closes #43809

Release Notes:

- Fix SSH remoting hang when connecting to 1 vCPU servers

Co-authored-by: Agus Zubiaga <agus@zed.dev>

Cherry-pick of #44110 to preview

----
Related to https://github.com/zed-industries/zed/pull/44109,
https://github.com/zed-industries/zed/issues/43884,
https://github.com/zed-industries/zed/issues/43809.

In the Linux dispatcher, we create one background thread per CPU, but
when a single core is available, having a single background thread
significantly hinders the perceived performance of Zed. This is
particularly helpful when SSH remoting to low-resource servers.

We may want to bump this to more than two threads actually, but I wanted
to be conservative, and this seems to make a big difference already.

Release Notes:

- N/A

Co-authored-by: Agus Zubiaga <agus@zed.dev>

Cherry-pick of #44135 to preview

----
In project search UI code we were seeing an issue where "Go to next
match" would act up and behave weirdly. It would not wrap at times.
Stuff would be weird, yo. It turned out that match ranges reported by
core project search were sometimes out of sync with the state of the
multi-buffer. As in, the sort order of
`search::ProjectSearch::match_ranges` would not match up with
multi-buffer's sort order. This is ~because multi-buffers maintain their
own sort order.

What happened within project search is that we were skipping straight
from stage 1 (filtering paths) to stage 3 via an internal channel and in
the process we've dropped the channel used to maintain result sorting.
This made is so that, given 2 files to scan:
- project/file1.rs <- not open, has to go through stage2 (FS scan)
- project/file2.rs <- open, goes straight from stage1 (path filtering)
  to stage3 (finding all matches) We would report matches for
  project/file2.rs first, because we would notice that there's an
  existing language::Buffer for it. However, we should wait for
  project/file1.rs status to be reported first before we kick off
  project/file2.rs

The fix is to use the sorting channel instead of an internal one, as
that keeps the sorting worker "in the loop" about the state of the
world.

Closes #43672

Co-authored-by: Smit Barmase <heysmitbarmase@gmail.com>

Release Notes:

- Fixed "Select next match" in project search results misbehaving when
some of the buffers within the search results were open before search
was ran.
- Fixed project search results being scrolled to the last file active
prior to running the search.

---------

Co-authored-by: Smit Barmase <heysmitbarmase@gmail.com>
Co-authored-by: Smit <smit@zed.dev>

Co-authored-by: Piotr Osiewicz <24362066+osiewicz@users.noreply.github.com>
Co-authored-by: Smit Barmase <heysmitbarmase@gmail.com>
Co-authored-by: Smit <smit@zed.dev>

Cherry-pick of #44130 to preview

----
Closes https://github.com/zed-industries/zed/issues/44127

Release Notes:

- Fixed brackets not re-colorizing on theme change

Co-authored-by: Kirill Bulatov <kirill@zed.dev>

This seems sensible to do - it already was the case prior but
indirectly, lets rather be explicit about this.

Release Notes:

- N/A

Co-authored-by: Agus Zubiaga <agus@zed.dev>

Release Notes:

- Fixed scope tab tooltip to tab content only

Signed-off-by: Xiaobo Liu <cppcoffee@gmail.com>

Release Notes:

- N/A

Co-authored-by: Agus Zubiaga <agus@zed.dev>

Release Notes:

- N/A

Co-authored-by: MrSubidubi <dev@bahn.sh>

Release Notes:

- N/A

Closes:
#38727 (Python autocompletion being sorted alphabetically)
<img
src="https://github.com/user-attachments/assets/8208d511-f4a4-41f9-8550-3b24370bf776"
width="400">

<img
src="https://github.com/user-attachments/assets/e7c99d7a-b61e-463b-b0f1-36cd279b3887"
width="400">


Release Notes:
- Improve sort order of pyright/basedpyright code completions

Fixes ZED-1VR

Release Notes:

- N/A *or* Added/Fixed/Improved ...

Uses the latest version of the SDK + schema crate. A bit painful because
we needed to move to `#[non_exhaustive]` on all of these structs/enums,
but will be much easier going forward.

Also, since we depend on unstable features, I am pinning the version so
we don't accidentally introduce compilation errors from other update
cycles.

Release Notes:

- N/A

Reverts zed-industries/zed#43663

Fixes #40155

Release Notes:

- Fixed python's run module task not working on windows platforms

Co-authored by: Smit Barmase <smit@zed.dev>

Small fix for consistency between C and C++ highlighting. Related to
https://github.com/zed-industries/zed/issues/9461

Release Notes:

- Change syntax highlighting for preprocessing directive in C so it can
be configured with `keyword.directive` instead of being treated as other
`keyword`. The behavior should be like the C++ one now.

<img width="953" height="343" alt="圖片"
src="https://github.com/user-attachments/assets/6b45d2cc-323d-44ba-995f-d77996757669"
/>

Follow-up of https://github.com/zed-industries/zed/pull/43607

Release Notes:

- N/A

Add informational banners for extensions that have been integrated into
Zed core:
- Basedpyright (Python language server)
- Ruff (Python linter)
- Ty (Python language server)

These banners appear when users search for these extensions, informing
them that the functionality is now built-in and linking to relevant
documentation.

The banners trigger when:
- Users search by extension ID (e.g., 'id:ruff')
- Users search using relevant keywords (e.g., 'basedpyright', 'pyright',
'ruff', 'ty')

Supersedes #43844

Closes #43837

Release Notes:

- Added banners to the extensions page when searching for Basedpyright,
Ruff, or Ty, indicating that these features are now built-in.

---------

Co-authored-by: Marshall Bowers <git@maxdeviant.com>

This PR promotes a line comment above a variant member to a doc comment,
so that the docs show up on hover.

Release Notes:

- N/A

Release Notes:

- N/A

Closes #30353

Release Notes:

- Fixed: Hover tooltips in git commit and blame popovers now
consistently use the UI font

#42441 moved the commit message out of the multi-buffer editor into its
own header element which looks nicer, but unfortunately can make the
view become unusable when the commit message is too long since it
doesn't scroll with the diff.

This PR maintains the metadata in its own element, but moves the commit
message back to the editor so the user can scroll past it. This does
mean that we lose markdown rendering for now, but we think this is a
good solution for the moment.


https://github.com/user-attachments/assets/d67cf22e-1a79-451a-932a-cdc8a65e43de

Release Notes:

- N/A

---------

Co-authored-by: cameron <cameron.studdstreet@gmail.com>

Release Notes:

- N/A

With the merging and publishing of
https://github.com/tree-sitter/tree-sitter-bash/pull/311 , we can now go
ahead and update the version of `tree-sitter-bash` that Zed relies on to
the latest version.

Closes #42091

Release Notes:

- Improved grammar for "Shell Script"

This PR forks a new version of the `zed_extension_api` in preparation
for new changes.

We're jumping from v0.6.0 to v0.8.0 for the WIT because we released
v0.7.0 of the `zed_extension_api` without any WIT changes (it probably
should have been v0.6.1, instead).

Release Notes:

- N/A

Closes #43408

Previously, we checked the setting inside `is_completion_trigger()`,
which only affects LSP completions. This was ok because user-defined
snippets were tacked onto LSP completions. Then #42122 and #42398 made
snippet completions their own thing, similar to word completions,
surfacing #43408. This PR moves the settings check into
`open_or_update_completions_menu()` so it applies to all completions.

Release Notes:

- Fixed setting `show_completions_on_input: false` so that it affects
word and user-defined snippet completions as well as LSP completions

Closes https://github.com/zed-industries/zed/issues/43910

Release Notes:

- N/A

Closes #41582

Release Notes:

- Improves the '%' vim motion for html by moving the cursor to the
opening tag when its positioned on the `/` ( slash ) of the closing tag

Release Notes:

- N/A

Sublime Merge:

<img width="403" height="313" alt="image"
src="https://github.com/user-attachments/assets/3ebf3c20-324f-4453-88fb-ad93da546f92"
/>

Fork: 

<img width="347" height="474" alt="image"
src="https://github.com/user-attachments/assets/bcec8920-9415-4ffe-9f17-8ee3e764c5bb"
/>

Zed:

<img width="362" height="316" alt="image"
src="https://github.com/user-attachments/assets/06e577cb-f897-45e0-b4b3-59a2c28b3342"
/>


Release Notes:

- Added a "File History" option to Git Panel entry context menu

Closes https://github.com/zed-industries/zed/issues/38475

<img width="500" height="820" alt="Screenshot 2025-12-02 at 5  24@2x"
src="https://github.com/user-attachments/assets/802e4fd7-0d6d-4cc2-a77a-17df8c268fc7"
/>

Release Notes:

- N/A

Noticed we had a few typos that weren't caught by the version we were
using

Release Notes:

- N/A

cargo-about@0.8.3 doesn't seem to like our license identifiers. Pinning
to 0.8.2 for now.

Release Notes:

- N/A

Abide the LSP better and actually run commands if completion items
request those:


https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#completionItem
```
/**
   * An optional command that is executed *after* inserting this completion.
   * *Note* that additional modifications to the current document should be
   * described with the additionalTextEdits-property.
   */
   command?: [Command](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#command);
```

Release Notes:

- N/A