refactor(sessions): import driver via vite plugin

[ematipico]

Changes

This PR refactors how we load the driver for Astro sessions. It uses the same loading mechanism that use we for middleware, actions and renderers.

• we have a virtual module that returns the driver
• the driver is saved in the pipeline
• the render context creates AstroSession by using the driver passed by the pipeline
• to the manifest we assign a function that returns the driver
• updated the plugin-manifest to return the manifest with the new sessionDriver property

The refactor was done using Claude AI

Testing

Added a new page to the test fixture. Unfortunately it doesn't work with my current cloudflare account, and I don't know why, however it's an error regarding the binding session.

Tested that session.test.js passes.

Docs

[changeset-bot]

⚠️ No Changeset found

Latest commit: 5640fd6

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

Click here to learn what changesets are, and how to add one.

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