Added serverless API v2 (but in v1 namespace)

[Robert-Stam]

This pull request introduces a significant update to the serverless API, effectively bringing it to a "v2" level of functionality and consistency, although it remains within the v1 package namespace for now.

The primary motivation for this change is to align the serverless offering with the more mature cluster API (DatabaseApiKeyService v2), providing a more consistent developer experience and more powerful, granular access control.

Key Changes:
Rename Collection to Space: The core concept of a serverless instance has been renamed from "Collection" to "Space". This is a breaking change that affects service names (CollectionService -> SpaceService), messages, fields, and file paths across the serverless API definitions.

Granular API Key Permissions: The CollectionApiKeyService has been updated to support fine-grained access control, and has been renamed to SpaceApiKeyService

It now uses AccessRules, similar to DatabaseApiKeyService v2, allowing permissions to be set globally for the serverless space or on a per-collection basis within that space.
This replaces the previous, simpler READ_ONLY/READ_WRITE access model.

[github-actions]

PR Packages Published

Python Package:

• Version: 0.130.0.dev354+2b8c516
• Package: qdrant-cloud-public-api
• Registry: https://us-python.pkg.dev/qdrant-cloud/python/
• To update run: uv add qdrant-cloud-public-api==0.130.0.dev354+2b8c516

NPM Package:

• Version: 0.130.0-dev354.2b8c516
• Package: @qdrant/qdrant-cloud-public-api
• Registry: https://us-npm.pkg.dev/qdrant-cloud/npm/
• To update run: npm install @qdrant/qdrant-cloud-public-api@0.130.0-dev354.2b8c516

[github-actions]

The latest Buf updates on your PR. Results from workflow Pull Request / linting (pull_request).

Build	Format	Lint	Breaking	Updated (UTC)
✅ passed	✅ passed	✅ passed	⏩ skipped	May 21, 2026, 3:27 PM

[forgems]

LGTM