docs(claude): record how to build and test core-services-cloud locally

The repo documents its own build and test commands, but assumes Windows and
PowerShell. This captures only the deltas that make them run on this machine:
dotnet from nixpkgs, artifactory credentials sourced per command because shell
state does not persist between tool calls, and a curl check that distinguishes
an auth failure from a code failure, since a rejected token surfaces as a
NuGet error that reads like a network fault.

Also records the two Docker Desktop leftovers that break the component test
environment, and the unleash registration a component test canary needs.

home/claude/memory/MEMORY.md

@@ -14,3 +14,4 @@
 - [Sandbox prompts](feedback_sandbox_prompts.md) — don't prompt for sandbox-disable or routine read-only shell ops; broaden permissions instead
 - [Dev clusters disposable](dev_clusters_disposable.md) — Lyra's dev clusters are recreatable; mutate/break freely, no confirmation needed
 - [Nix shell tooling](nix_shell_tooling.md) — any nixpkgs tool runs ad hoc via `nix run`/`nix shell nixpkgs#<pkg>`; a missing command is never a dead end
+- [WSP local build and test](wsp_local_build_and_test.md) — core-services-cloud on this box: dotnet via nix, artifactory creds from `~/.artifactoryenv` sourced per command, how to tell auth failure from a code failure