F# pre-generated code via codegen write --language fsharp; JasperFx 2.4.1 (6.3.1)

[jeremydmiller]

Completes the Wolverine-on-F# story — pre-generate Wolverine's runtime code as F# from the command line — and cuts 6.3.1.

JasperFx side (already published as 2.4.1)

JasperFx 2.4.1 (JasperFx/jasperfx#406) adds a --language flag to the codegen command:

dotnet run -- codegen write --language fsharp

Wolverine side (this PR)

• Pin JasperFx.* → 2.4.1.
• F# emit for the static HandlerRegistry (WriteTypeArrayFrame): emits F# array literals of typeof<…> via Type.FSharpName(). This frame previously threw NotSupportedException, which made codegen write --language fsharp fail for any real Wolverine app — every app generates the internal HandlerRegistry, not just user handlers. This is the "& Wolverine" half of the work.
• Made Wolverine.Behavioural.FSharpApp runnable (a Program.fs calling RunJasperFxCommands, with discovery config matching BehaviouralCodegen.Configure) so the CLI can target it.
• New CI proof (CodegenWriteFSharpCli): runs dotnet run -- codegen write --language fsharp against the F# app, asserts exit 0 (every chain — including the internal HandlerRegistry — emits F#), and that the generated handler adapter is byte-identical to the committed Generated.fs that the behavioural run-step already compiles and executes under TypeLoadMode.Static. So: the CLI produces the same F# that's proven to run. (Behavioural F# test classes serialized into one non-parallel collection — they spawn nested dotnet build/run.)
• fsharp CI step updated to cover the CLI proof.
• F# tutorial: documents the codegen write --language fsharp workflow and the ordered <Compile> includes F# requires.
• Version → 6.3.1.

Verification

• ✅ dotnet build wolverine.slnx -c Release clean against JasperFx 2.4.1.
• ✅ Behavioural F# tests (run-step + regenerate + new CLI proof) pass; locally confirmed the CLI-generated GeneratedHandlerRegistry.fs compiles.
• ✅ VitePress docs build clean.

Merge-order note

This bumps Directory.Packages.props JasperFx pins to 2.4.1, superseding the 2.4.0 bump in the still-open #2997 (docs/Aspire). Merge this after, or rebase #2997, to avoid a downgrade.

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