V15.0.0

[Ryang-21]

• Updated stellar-base to v15.0.0 and dev-dependency version bumps

[Copilot]

Pull request overview

Updates @stellar/stellar-sdk to v15.0.0, primarily by upgrading @stellar/stellar-base (Protocol 26 / XDR changes) and refreshing related tooling dependencies to newer versions.

Changes:

• Bump package version to 15.0.0 and upgrade @stellar/stellar-base to ^15.0.0 (plus assorted dependency/devDependency bumps).
• Update the browser Vitest configuration to use the Playwright provider via @vitest/browser-playwright.
• Add a v15.0.0 entry to the changelog highlighting the breaking Protocol 26/XDR upgrade.

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated 2 comments.

File	Description
package.json	Version bump to 15.0.0 and dependency/devDependency upgrades (including @stellar/stellar-base@^15.0.0, Vitest/Playwright tooling updates).
config/vitest.config.browser.ts	Adjust Vitest browser setup to use the Playwright provider helper and apply updated formatting.
CHANGELOG.md	Document v15.0.0 breaking change note for Protocol 26 / stellar-base v15.0.0.

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[github-actions]

Size Change: +263 kB (+0.58%)

Total Size: 45.4 MB

📦 View Changed

Filename	Size	Change
dist/stellar-sdk-minimal.js	6 MB	+21.7 kB (+0.36%)
dist/stellar-sdk-minimal.min.js	5.11 MB	+28.5 kB (+0.56%)
dist/stellar-sdk-no-axios.js	6 MB	+21.7 kB (+0.36%)
dist/stellar-sdk-no-axios.min.js	5.11 MB	+28.5 kB (+0.56%)
dist/stellar-sdk-no-eventsource.js	6.27 MB	+41.8 kB (+0.67%)
dist/stellar-sdk-no-eventsource.min.js	5.33 MB	+39.4 kB (+0.74%)
dist/stellar-sdk.js	6.27 MB	+41.8 kB (+0.67%)
dist/stellar-sdk.min.js	5.33 MB	+39.4 kB (+0.74%)

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