Hosting integration for Permify

[dealloc]

Closes #1068

This PR adds hosting integration for Permify as discussed in #1068.
I've added methods for setting up the HTTP API, gRPC API, database support and watch support.

One part I need help with is the setup of OTLP, from what I gather there's a .WithOtlpExporter() method which injects variables to configure the OTLP, however Permify uses it's own variables (specifically PERMIFY_TRACER_ENDPOINT and PERMIFY_METER_ENDPOINT).

AI suggested using .WithEnvironment with a callback that fetches the endpoint variable and pass it on, however then it turns out Permify expects the host + port in the endpoint variables without a scheme.
I'm looking for the recommended / idiomatic way to handle this.

PR Checklist

• Created a feature/dev branch in your fork (vs. submitting directly from a commit on main)
• Based off latest main branch of toolkit
• PR doesn't include merge commits (always rebase on top of our main, if needed)
• New integration
  • Docs are written
  • Added description of major feature to project description for NuGet package (4000 total character limit, so don't push entire description over that)
• Tests for the changes have been added (for bug fixes / features) (if applicable)
• Contains NO breaking changes
• Every new API (including internal ones) has full XML docs
• Code follows all style conventions

Other information

As described above, requires some fixes to the OTLP integration

[dealloc]

I notice my PR moved around some entries in tests.yaml, I used the script as described in the documentation.
I'm guessing some of those entries were added manually, let me know if we want to revert those