feat: add format validation

[tatomyr]

What/Why/How?

Added JSON Schema format validation (2nd attempt).

Reference

Resolves #766

Related: #386

Replaces #1820

Testing

• Add an e2e test.
• Test in the browser env
• Test in Reunite (https://github.com/Redocly/redocly/pull/16740)

Screenshots (optional)

Check yourself

• Code changed? - Tested with redoc (internal)
• All new/updated code is covered with tests
• New package installed? - Tested in different environments (browser/node)

Security

• Security impact of change has been considered
• Code follows company security practices and guidelines

[changeset-bot]

🦋 Changeset detected

Latest commit: 95d3528

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 3 packages

Name	Type
@redocly/openapi-core	Minor
@redocly/cli	Minor
@redocly/respect-core	Minor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[github-actions]

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
redocly lint packages/core/src/benchmark/benches/rebilly.yaml	935.0 ± 16.7	914.1	966.0	1.00
redocly-next lint packages/core/src/benchmark/benches/rebilly.yaml	1181.9 ± 37.8	1135.0	1246.3	1.26 ± 0.05

[github-actions]

📦 A new experimental 🧪 version v0.0.0-snapshot.1752491489 of Redocly CLI has been published for testing.

Install with NPM:

npm install @redocly/[email protected]
# or
npm install @redocly/[email protected]
# or
npm install @redocly/[email protected]

⚠️ Note: This is a development build and may contain unstable features.