#4592: docs for JasperFx command buttons in the Aspire dashboard + bump JasperFx.* 2.4.0

[jeremydmiller]

Closes #4592.

The new JasperFx.Aspire package (JasperFx/jasperfx#402, shipped in JasperFx 2.4.0) surfaces a JasperFx app's CLI verbs as clickable custom commands on each resource tile in the .NET Aspire dashboard. Marten apps inherit this for free because they build on the JasperFx command layer.

New docs page

docs/configuration/aspire-commands.md — JasperFx Commands in the Aspire Dashboard. Covers:

• The one-liner: builder.AddProject<Projects.MartenApi>(\"api\").WithJasperFxCommands();
• The four verbs that matter most for Marten users — check-env, describe, resources (schema apply/patch), projections (async rebuilds) — and which ones are mutating.
• IncludeMutatingCommands = true opt-in and the dashboard confirmation behavior for mutating verbs.
• Per-verb customization via opts.For(verb) — DisplayName, ConfirmationMessage, IconName, IsHighlighted, IsEnabled predicate.
• WithJasperFxCommand single-verb registration with fixed args (the "rebuild MyProjection only" recipe).
• Constraint notes: AppHost-layer only, child-process verb spawn picks up Aspire-injected env, requires ApplyJasperFxExtensions + RunJasperFxCommandsAsync wiring in the service's Program.cs.

Wired into the sidebar under Command Line Tooling in docs/.vitepress/config.mts. Reciprocal cross-link added at the top of docs/configuration/cli.md so anyone landing on the CLI page sees the Aspire entry-point too.

Dependency bump

Package	From	To
JasperFx	2.2.1	2.4.0
JasperFx.Events	2.2.1	2.4.0
JasperFx.Events.SourceGenerator	2.2.1	2.4.0
JasperFx.SourceGenerator	2.2.1	2.4.0

Marten core builds clean against 2.4.0 (0 errors). The JasperFx.Aspire package the docs reference ships in this same 2.4.0 train.

Lint

markdownlint --disable MD009 + cspell --config ./docs/cSpell.json both pass locally on the new page and the edited cli.md.

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