feat: Add initial AuthzQuerier implementation
- Adds package database/dbauthz that adds a database.Store implementation where each method goes through AuthZ checks
- Implements all database.Store methods on AuthzQuerier
- Updates and fixes unit tests where required
- Updates coderd initialization to use AuthzQuerier if codersdk.ExperimentAuthzQuerier is enabled
* chore: Optimize rego policy evaluation allocations
Manually convert to ast.Value instead of using generic
json.Marshal conversion.
* Add a unit test that prevents regressions of rego input
The optimized input is always compared to the normal json
marshal parser.
This PR adds an RBAC package for managing using permissions:
- The top-level `authz.Authorize` function is the main user-facing entrypoint to the package.
- Actual permission evaluation is handled in `policy.rego`.
- Unit tests for `authz.Authorize` are in `authz_test.go`
- Documentation for the package is in `README.md`.
Co-authored-by: Cian Johnston <cian@coder.com>
