…vely` (#9587)

## Summary

- Allow `includeDependenciesRecursively` on individual `codeSplitting.groups`, overriding the global value
- When omitted on a group, inherits `codeSplitting.includeDependenciesRecursively` (default `true`)
- Extends `preserveEntrySignatures` validation to check both global and per-group values

Closes #9467

Built on the exploration in #9488 — thank you @aminpaks for the thorough investigation and initial implementation! 🙏

## Changes

| Layer | File | Change |
|-------|------|--------|
| Rust types | `manual_code_splitting_options.rs` | Add `include_dependencies_recursively: Option<bool>` to `MatchGroup` |
| NAPI binding | `binding_manual_code_splitting_options.rs` | Add field to `BindingMatchGroup` |
| Binding conversion | `normalize_binding_options.rs` | Map new field |
| Chunk logic | `manual_code_splitting.rs` | Per-group fallback: group → global → `true` |
| Validation | `prepare_build_context.rs` | `has_non_recursive_dependency_capture()` helper, 2 callsites |
| TS types | `output-options.ts` | Add to `CodeSplittingGroup` with JSDoc |
| TS validator | `validator.ts` | Add to group schema |

## Example

```js
output: {
  codeSplitting: {
    includeDependenciesRecursively: true,
    groups: [
      {
        name: 'route-alpha',
        test: /routes\/alpha\//,
        includeDependenciesRecursively: false, // route-only, no sibling deps
      },
      {
        name: 'shared',
        test: /shared\//,
        // inherits global (true)
      },
    ],
  },
}
```

## Test plan

- [x] Chunking behavior test: group with `false` excludes transitive deps, group without inherits global
- [x] Validation test: per-group `false` + `preserveEntrySignatures: 'strict'` → error
- [x] All existing `advanced-chunks` tests pass
- [x] Full build (`just build-rolldown`) passes