chore: update repo to 0.6 alpha, add redis and dynamodb to mediator

[TimoGlastra]

WIP WIP WIP

[TimoGlastra]

@genaris @jamshale I've been working on the 0.6 branch, and adding a standardized way to load one of multiple options, with a strictly validated startup config.

It uses zod-config to allow both JSON and Env provided config. and I added support for these options:

• cache: redis or in-memory
• storage: askar or drizzle (native SQLite or PostgreSQL)
• message pickup: postgres plugin, drizzle storage, or native Credo using record (which becomes a more viable option with Drizzle).

If you have some time, maybe you can take a look? The readme contains some explanation and example configuration. There's also a samples directry with example configurations.