chore(deps): update dependency prettier to v3.9.5

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
prettier (source)	3.8.5 → 3.9.5

---

Release Notes

prettier/prettier (prettier)

v3.9.5

Compare Source

diff

Markdown: Cap ordered list mark at 999,999,999 (#​19351 by @​tats-u)

CommonMark parsers only support ordered list item numbers up to 999,999,999.

With this change, Prettier now caps the ordered list item number at 999,999,999 to ensure that the output is correctly parsed as an ordered list by CommonMark parsers. Numbers larger than 999,999,999 are not parsed as list item numbers and are left unchanged in the output:

<!-- Input -->
999999998. text
999999998. text
999999998. text
999999998. text

1234567890123456789012) text

<!-- Prettier 3.9.4 -->
999999998. text
999999999. text
1000000000. text
1000000001. text

1234567890123456789012) text

<!-- Prettier 3.9.5 -->
999999998. text
999999999. text
999999999. text
999999999. text

1234567890123456789012) text

Markdown: Avoid corrupting empty link with title (#​19487 by @​andersk)

Do not remove <> from an inline link or image with an empty URL and a title, as this removal would change its interpretation.

<!-- Input -->
[link](<> "title")

<!-- Prettier 3.9.4 -->
[link]( "title")

<!-- Prettier 3.9.5 -->
[link](<> "title")

Less: Remove extra spaces after [ in map lookups (#​19503 by @​kovsu)

// Input
.foo {
  color: #theme[ primary];
  color: #theme[@​name];
  color: #theme[@​@​name];
}

// Prettier 3.9.4
.foo {
  color: #theme[ primary];
  color: #theme[ @​name];
  color: #theme[ @​@​name];
}

// Prettier 3.9.5
.foo {
  color: #theme[primary];
  color: #theme[@​name];
  color: #theme[@​@​name];
}

CSS: Prevent addition space in type() with + (#​19516 by @​bigandy)

This fixes the addition space before + in CSS type() declaration. For example type(<number>+) was being converted into type(<number> +) which is invalid CSS and does not work.

/* Input */
div {
  border-radius: attr(br type(<length>+));
}

/* Prettier 3.9.4 */
div {
  border-radius: attr(br type(<length> +));
}

/* Prettier 3.9.5 */
div {
  border-radius: attr(br type(<length>+));
}

Less: Remove spaces between merge markers and colons (#​19517 by @​kovsu)

// Input
a {
  box-shadow  +  : 0 0 1px #​000;
}

// Prettier 3.9.4
a {
  box-shadow+  : 0 0 1px #​000;
}

// Prettier 3.9.5
a {
  box-shadow+: 0 0 1px #​000;
}

Markdown: Preserve wiki links with aliases (#​19527 by @​kovsu)

<!-- Input -->
[[Foo:Bar]]

<!-- Prettier 3.9.4 -->
[[Foo]]

<!-- Prettier 3.9.5 -->
[[Foo:Bar]]

TypeScript: Fix comments being dropped on shorthand type import/export specifiers (#​19565 by @​kirkwaiblinger)

// Input
export { type /* comment */ T } from "foo";
import { type /* comment */ T } from "foo";

// Prettier 3.9.4
Error: Comment "comment" was not printed. Please report this error!

// Prettier 3.9.5
export { type /* comment */ T } from "foo";
import { type /* comment */ T } from "foo";

Miscellaneous: Preserving comments' placement property (#​19567 by @​Janther)

Prettier@​3.9.0 deleted an undocumented property on comments, which was already used by plugins, comment.placement is now available again after comment attach.

Flow: Stop enforcing empty module declaration to break (#​19568 by @​fisker)

// Input
declare module "foo" {}

// Prettier 3.9.4
declare module "foo" {
}

// Prettier 3.9.5
declare module "foo" {}

Angular: Support expression for exhaustive typechecking (#​19571 by @​fisker)

<!-- Input -->
@&#8203;switch (state.mode) {
  @&#8203;default never(state);
}

<!-- Prettier 3.9.4 -->
@&#8203;switch (state.mode) {
  @&#8203;default never;
}

<!-- Prettier 3.9.5 -->
@&#8203;switch (state.mode) {
  @&#8203;default never(state);
}

TypeScript: Ignore comments inside mapped type when checking type parameter comments (#​19572 by @​fisker)

// Input
foo<{
  // comment
  [key in keyof Foo]: number
}>();

// Prettier 3.9.4
foo<
  {
    // comment
    [key in keyof Foo]: number;
  }
>();

// Prettier 3.9.5
foo<{
  // comment
  [key in keyof Foo]: number;
}>();

Less: Fix adjacent block comments being corrupted (#​19574 by @​kovsu)

// Input
/* a *//* b */
/* a */* {
  color: red;
}

// Prettier 3.9.4
/* a */
/* b */
/* a * {
  color: red;
}

// Prettier 3.9.5
/* a */ /* b */
/* a */
* {
  color: red;
}

JavaScript: Handle dangling comments in SwitchStatement (#​19581 by @​fisker)

// Input
switch (foo) {
 // comment
}

// Prettier 3.9.4
switch (
  foo
  // comment
) {
}

// Prettier 3.9.5
switch (foo) {
  // comment
}

TypeScript: Remove space in comment-only object type (#​19583 by @​fisker)

// Input
var foo = {
  /* comment */
};
type Foo = {
  /* comment */
};

// Prettier 3.9.4
var foo = {/* comment */};
type Foo = { /* comment */ };

// Prettier 3.9.5
var foo = {/* comment */};
type Foo = {/* comment */};

v3.9.4

Compare Source

v3.9.3

Compare Source

v3.9.2

Compare Source

v3.9.1

Compare Source

v3.9.0

Compare Source

diff

🔗 Release Notes

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[github-actions]

Renovate PR Review Results

⚖️ Safety Assessment: ✅ Safe

🔍 Release Content Analysis

3.8.5 → 3.9.5 の変更概要（バグ修正のみ、破壊的変更なし）:

• TypeScript: shorthand type import/export 内のコメント欠落バグ修正 (#19565)
• TypeScript: mapped type 内コメントによる型パラメータの不正なインデント修正 (#19572)
• TypeScript: comment-only object type への余計なスペース除去 (#19583)
• JavaScript: SwitchStatement の dangling comment 処理修正 (#19581)
• Markdown: 順序付きリストの番号上限を 999,999,999 にキャップ (#19351)
• Markdown: 空URL+タイトルのリンク破損修正 (#19487)
• Markdown: wiki links のエイリアス保持 (#19527)
• CSS: type() 内の + 前の不要スペース除去 (#19516)
• Less: map lookup の [ 後の余計なスペース除去 (#19503)
• Less: merge marker とコロン間のスペース除去 (#19517)
• Less: 隣接ブロックコメント破損修正 (#19574)
• Flow: 空モジュール宣言の強制改行停止 (#19568)
• Angular: exhaustive typechecking 用式のサポート (#19571)
• Misc: comment.placement プロパティの復元 (#19567)

全変更がバグ修正・書式改善であり、破壊的変更（breaking changes）は存在しない。

🎯 Impact Scope Investigation

• 利用箇所: package.json の format / format:check スクリプトでのみ使用（dev dependency）
• 設定ファイル: .prettierrc.json はシンプル構成（singleQuote, trailingComma, printWidth のみ）
• 対象ファイル: src/ と tools/ 配下の .ts/.tsx/.astro/.css 計 126 ファイル
• Less ファイル: 存在しない → Less 関連の変更は影響なし
• Flow ファイル: 存在しない → Flow 関連の変更は影響なし
• Angular テンプレート: 存在しない → Angular 関連の変更は影響なし
• 依存関係への影響: prettier は dev dependency のみで runtime への影響なし。他パッケージへの peer dependency 変更もなし

関連する変更（TypeScript/JS のバグ修正）について: type import のコメント処理や SwitchStatement の dangling comment など TypeScript/JS のバグ修正が存在するが、いずれも既存コードの意味を変えるものではなく、formatter の出力を正しくするものに限られる。

💡 Recommended Actions

• 追加の移行作業は不要
• マージ後に pnpm format を実行すると、修正されたバグにより一部ファイルの書式が更新される可能性があるが、これは正常な動作であり問題なし
• CI の format:check が通ればそのままマージ可能

🔗 Reference Links

• prettier 3.9.0 Release Blog
• prettier CHANGELOG
• Renovate diff: 3.8.5 → 3.9.5

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