Links: Add bulk creation of links

[iLLiCiTiT]

Changelog Description

Implemented bulk creation of links to ayon api.

Additional review information

Since AYON server 1.15.8 there is an endpoint to bulk create links on server. Implemented the method using the endpoint. In case older server is available then it does create them one by one. It does validate the data of links.

Testing notes:

1. It is possible to create multiple links at once.

[Copilot]

Pull request overview

Adds a public API for bulk link creation in ayon_api, using the server’s /links/bulk endpoint when available (>= 1.15.8) and falling back to per-link creation on older servers.

Changes:

• Introduces create_links() in the public API and LinksAPI helper, with server-version fallback logic.
• Updates typing to distinguish link creation request payload (CreateLinkData) from response payload (CreateLinkResponseData).
• Exposes the new create_links helper from the package __init__.

Reviewed changes

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

File	Description
ayon_api/typing.py	Adds new link create request/response TypedDicts used by the new bulk API.
ayon_api/_api.py	Exposes a new top-level create_links() wrapper and updates create_link() return typing.
ayon_api/_api_helpers/links.py	Implements server-side bulk creation with fallback and introduces link payload validation.
ayon_api/__init__.py	Exports create_links as part of the public package API.

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[BigRoy]

Didn't test, but LGTM.

Do you need me to do a test run @iLLiCiTiT ?