Show tag names in git blame tooltips (#60757)

Fetch tag names for commits included in blame data and pass them through
the blame rendering path. Render tag names as chips in the blame hover
tooltip and expanded blame popover. Tag lookup is best-effort, so blame
still renders if tag lookup fails.

> Note: Tag names are currently only fetched for local repositories. For
remote projects (SSH) and collab sessions, blame data travels over the
`BlameBufferResponse` proto message, which doesn't carry tag names yet.

  ## Testing

- `cargo test -p git
test_parse_tag_names_for_lightweight_and_annotated_tags`
  - `cargo check -p git_ui`
  - `cargo check -p editor`
  - `cargo check -p project`

  Manual testing:
  - Opened `git: blame` on a file with a tagged commit.
- Verified tag chips are shown in the blame hover tooltip and expanded
popover.

  ## Self-Review Checklist:

  - [x] I've reviewed my own diff for quality, security, and reliability
  - [x] Unsafe blocks (if any) have justifying comments
- [x] The content adheres to Zed's UI standards
([UX/UI](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
and [icon]

(https://github.com/zed-industries/zed/blob/main/crates/icons/README.md)
guidelines)
  - [x] Tests cover the new/changed behavior
  - [x] Performance impact has been considered and is acceptable

  ## Showcase

Before:
<img width="1655" height="660" alt="before"
src="https://github.com/user-attachments/assets/dbefd729-f8df-48a9-8249-83c93518fe76"
/>

After:
<img width="1655" height="660" alt="after"
src="https://github.com/user-attachments/assets/2c1097de-b268-45d9-9d13-0f3e06058603"
/>

---

Release Notes:

- Git: Made tags visible in Git blame tooltips.

---------

Co-authored-by: Danilo Leal <daniloleal09@gmail.com>

crates/git_ui/src/commit_tooltip.rs

@@ -14,7 +14,7 @@ use settings::Settings;
 use std::hash::Hash;
 use theme_settings::ThemeSettings;
 use time::{OffsetDateTime, UtcOffset};
-use ui::{Avatar, CopyButton, Divider, prelude::*, tooltip_container};
+use ui::{Avatar, Chip, CopyButton, Divider, Tooltip, prelude::*, tooltip_container};
 use workspace::Workspace;
 
 #[derive(Clone, Debug)]
@@ -24,6 +24,51 @@ pub struct CommitDetails {
     pub author_email: SharedString,
     pub commit_time: OffsetDateTime,
     pub message: Option<ParsedCommitMessage>,
+    pub tag_names: Vec<SharedString>,
+}
+
+const MAX_COMMIT_TOOLTIP_TAG_CHIPS: usize = 2;
+
+pub(crate) fn commit_tag_chips(tag_names: &[SharedString]) -> Option<impl IntoElement> {
+    if tag_names.is_empty() {
+        return None;
+    }
+
+    let (visible_tags, hidden_tags) =
+        tag_names.split_at(tag_names.len().min(MAX_COMMIT_TOOLTIP_TAG_CHIPS));
+
+    Some(
+        h_flex().max_w(relative(0.6)).gap_1().child(
+            h_flex()
+                .gap_1()
+                .min_w_0()
+                .children(
+                    visible_tags
+                        .iter()
+                        .map(|tag_name| Chip::new(tag_name.clone()).truncate()),
+                )
+                .when(!hidden_tags.is_empty(), |this| {
+                    let hidden_tags = hidden_tags.to_vec();
+                    this.child(Chip::new(format!("+{}", hidden_tags.len())).tooltip(
+                        Tooltip::element(move |_window, cx| {
+                            v_flex()
+                                .gap_1()
+                                .children(itertools::Itertools::intersperse_with(
+                                    hidden_tags.iter().map(|tag_name| {
+                                        Label::new(tag_name.clone())
+                                            .size(LabelSize::Small)
+                                            .buffer_font(cx)
+                                            .into_any_element()
+                                    }),
+                                    || Divider::horizontal().into_any_element(),
+                                ))
+                                .into_any_element()
+                        }),
+                    ))
+                })
+                .child(Divider::vertical()),
+        ),
+    )
 }
 
 pub struct CommitAvatar<'a> {
@@ -172,6 +217,7 @@ impl CommitTooltip {
     pub fn blame_entry(
         blame: &BlameEntry,
         details: Option<ParsedCommitMessage>,
+        tag_names: Vec<SharedString>,
         repository: Entity<Repository>,
         workspace: WeakEntity<Workspace>,
         cx: &mut Context<Self>,
@@ -192,6 +238,7 @@ impl CommitTooltip {
                     .into(),
                 author_email: blame.author_mail.clone().unwrap_or("".to_string()).into(),
                 message: details,
+                tag_names,
             },
             repository,
             workspace,
@@ -270,6 +317,7 @@ impl Render for CommitTooltip {
             .message
             .as_ref()
             .and_then(|details| details.pull_request.clone());
+        let tag_names = self.commit.tag_names.clone();
 
         let ui_font_size = ThemeSettings::get_global(cx).ui_font_size(cx);
         let message_max_height = window.line_height() * 12 + (ui_font_size / 0.4);
@@ -336,12 +384,16 @@ impl Render for CommitTooltip {
                                 .w_full()
                                 .justify_between()
                                 .pt_1()
+                                .gap_1()
+                                .flex_wrap()
                                 .border_t_1()
                                 .border_color(cx.theme().colors().border_variant)
                                 .child(absolute_timestamp)
                                 .child(
                                     h_flex()
                                         .gap_1()
+                                        .min_w_0()
+                                        .children(commit_tag_chips(&tag_names))
                                         .when_some(pull_request, |this, pr| {
                                             this.child(
                                                 Button::new(