Add ARCCHR0006 for reactors that return commands without a replay decision

[woksin]

Arc for TypeScript 0.36.0 adds ARCCHR0006, the counterpart of the Arc for .NET analyzer that warns when a reactor executes a command without a replay decision. npm publication remains disabled.

Added

• ARCCHR0006 in @cratis/eslint-plugin-arc-core's recommended-type-checked preset. It reports a Chronicle @reactor() event handler that returns an Arc @command() without a replay decision: @onceOnly() on the reactor or handler, or a @replay() handler for the same event. Replaying the reactor would otherwise execute the command again.
  • It follows async handlers, returned arrays and tuples, and helpers in the same class whose result the handler returns, including class-expression reactors.
  • It does not follow inherited or external helpers, handlers whose event parameter isn't typed as the event class, decorated classes that only come from .d.ts files, or commands executed manually through an Arc server. The ARCCHR0006 page lists these limits.

Changed

• Projects that use recommended-type-checked can see new ARCCHR0006 diagnostics on reactors that return commands without @onceOnly() or @replay().
• The code-analysis navigation lists the ARCCHR0003, ARCCHR0006, ARCCHR0007, ARCCHR0009, and ARCCHR0010 pages.

Refs #74