Resolves#37192
Separating generic endpoint_utils middleware logic from domain-specific
business logic. New bounded contexts would share the generic logic and
implement their own domain-specific logic. The two approaches used in
this PR are:
- Use common `platform` types
- Use interfaces
In the next PR we will move `endpointer_utils`, `authzcheck` and
`ratelimit` into `platform` directory.
# Checklist for submitter
- [x] Added changes file
## Testing
- [x] Added/updated tests
- [x] QA'd all new/changed functionality manually
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Refactor**
* Restructured internal error handling and context management to support
bounded context architecture.
* Improved error context collection and telemetry observability through
a provider-based mechanism.
* Decoupled licensing and authentication concerns into interfaces for
better modularity.
* **Chores**
* Updated internal package dependencies to align with new architectural
boundaries.
<sub>✏️ Tip: You can customize this high-level summary in your review
settings.</sub>
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