chore: add Prettier formatting with eslint-config-prettier integration

[Hector Hernandez (hectorhdzg)]

No description provided.

[Copilot]

Pull request overview

Adds Prettier to the repo and integrates eslint-config-prettier into the ESLint flat config so formatting-related ESLint rules don’t conflict with Prettier, along with repo-wide formatting normalization.

Changes:

• Add Prettier configuration/ignore files and update npm scripts to support format checking/fixing.
• Integrate eslint-config-prettier into eslint.config.mjs.
• Apply formatting-only updates across src/ and test/, and add a format check step in PR validation CI.

Reviewed changes

Copilot reviewed 25 out of 29 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
test/utils/basic.ts	Whitespace-only formatting cleanup.
test/internal/unit/traces/traceHandler.test.ts	Whitespace-only formatting cleanup.
test/internal/unit/shared/logging/diagFileConsoleLogger.test.ts	Prettier-driven reformatting of mocked stubs and whitespace cleanup.
test/internal/unit/shared/jsonConfig.test.ts	Wrap long assertions to match Prettier formatting.
test/internal/unit/metrics/metricHandler.test.ts	Whitespace-only formatting cleanup around comments.
test/internal/unit/metrics/liveMetricsFilter.test.ts	Whitespace-only formatting cleanup in imports.
test/internal/unit/metrics/liveMetrics.test.ts	Whitespace-only formatting cleanup.
test/internal/unit/main.test.ts	Whitespace-only formatting cleanup.
test/internal/unit/logs/logHandler.test.ts	Remove extra blank lines at file header.
test/internal/unit/browserSdkLoader/browserSdkLoader.test.ts	Whitespace-only formatting cleanup in test setup blocks.
src/shared/module.ts	Whitespace-only formatting cleanup.
src/shared/logging/logger.ts	Whitespace-only formatting cleanup between methods.
src/shared/logging/diagFileConsoleLogger.ts	Whitespace-only formatting cleanup; no behavior change.
src/shared/jsonConfig.ts	Prettier-driven reformatting of type assertions for readability.
src/shared/config.ts	Consolidate type import formatting.
src/metrics/quickpulse/utils.ts	Whitespace-only formatting cleanup in object literals/loops.
src/metrics/quickpulse/liveMetrics.ts	Whitespace-only formatting cleanup.
src/metrics/quickpulse/export/exporter.ts	Whitespace-only formatting cleanup.
src/metrics/handler.ts	Whitespace-only formatting cleanup.
src/logs/batchLogRecordProcessor.ts	Whitespace-only formatting cleanup.
src/index.ts	Consolidate import formatting.
src/distro/distro.ts	Whitespace-only formatting cleanup.
src/browserSdkLoader/browserSdkLoaderHelper.ts	Whitespace-only formatting cleanup.
src/browserSdkLoader/browserSdkLoader.ts	Whitespace-only formatting cleanup.
package.json	Add eslint-config-prettier, bump Prettier, adjust build/format scripts.
eslint.config.mjs	Add eslint-config-prettier to disable conflicting formatting rules.
.prettierrc.json	Add Prettier configuration defaults.
.prettierignore	Add ignore patterns for build output/generated artifacts.
.github/workflows/pr-validation.yml	Add a dedicated format-check step to PR validation workflow.

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[Radhika Gupta (rads-1996)]

Are these genuine concerns?

[Hector Hernandez (hectorhdzg)]

What you mean? the any types?, this PR is to add formatting not fixing typing :)