Stand up Topaz (Azure emulator) as a cheap target for Azure CD primitives

[ChrisonSimtian]

Part of the Continuous Delivery Vision (milestone #8); tracked under the CD: Azure Cloud (Topaz) sub-milestone (#14).

Idea

Adopt Topaz (open-source Azure cloud emulator) as a local, free target so we can build and exercise Azure-specific CD primitives without real Azure spend. This is directly motivated by a real workplace need — which makes it a cheap, high-signal proving ground for Fallout's deployment/release orchestration work.

Why this is a good first Azure CD bet

• Cheap to iterate — emulated Azure means no subscription cost or teardown discipline while prototyping.
• Real demand — needed at $work, so the primitives get validated against an actual use case instead of a hypothetical one.
• Dogfoodable — integration tests for Azure CD targets can run against Topaz in CI later.

Rough scope (shape TBD — this is a tracking/scoping issue, not a spec)

• Pin the canonical Topaz project/repo + confirm which Azure services it emulates and how faithfully.
• Document running Topaz locally (container) for dev/test.
• Prototype Azure-specific CD building blocks against it (e.g. resource/group deployment, storage, app/service deploy — narrow to what $work actually needs first).
• Decide what graduates into a real Fallout CD primitive vs. stays a sample.
• Wire Topaz as an integration-test target once primitives stabilise.

Notes

• Long-horizon, no release commitment — lives under the CD vision umbrella.
• Per demand-driven scoping: start from the concrete $work use case, not a broad "emulate all of Azure" goal.