Apply Roslyn/dotnet-format fixes across NeonSprawl.Server and
NeonSprawl.Server.Tests: collection expressions, concrete helper
return types, record XML docs, logging guards, quest store refactors,
and removal of redundant usings via GlobalUsings.cs. Extend
csharp-style.md with the recurring patterns.
Replace .ToArray() with collection spread, simplify single-statement
await using blocks, use Lock for Postgres schema gates, and document
IDE0063/IDE0305/IDE0330/CA1859 conventions in csharp-style.md.
Split HTTP verification reads into Assert in C# API and integration tests.
Add # Arrange/# Act/# Assert to GdUnit suites and keep Act free of assertions
where casts and busy guards are under test.
Ship a server-owned hotbar loadout API with Postgres-or-memory persistence so slot bindings survive reconnects in configured environments. Wire client boot hydration and add tests/docs/manual QA to keep the prototype contract and policy explicit.