feat(angular): implement link_component for native Rust linker

[Brooooooklyn]

Implement ɵɵngDeclareComponent → ɵɵdefineComponent linking in the Rust
linker, eliminating the Babel fallback for component declarations. This
was the last missing declaration type, so the linker now handles all
Angular partial declarations natively.

Changes:

• Add compile_template_for_linker() and compile_host_bindings_for_linker()
  in component/transform.rs for template and host binding compilation
• Implement link_component() with full support for: template compilation,
  selectors, inputs/outputs, queries (content + view), host attrs/bindings,
  features, dependencies, styles, encapsulation, change detection, and
  animations
• Add helper functions: extract_host_metadata_input, extract_dependency_types,
  build_queries, build_features, get_array_property
• Remove Babel fallback from Vite plugin and use async linkAngularPackage
• Add tests for component linking including host bindings validation

Co-Authored-By: Claude Opus 4.6 noreply@anthropic.com

---

Note

High Risk
Large change to Angular linking/codegen by adding template compilation and component metadata emission, which can affect runtime correctness across many libraries. Also changes HMR update behavior and linker plugin integration, increasing the chance of subtle regressions in dev/build flows.

Overview
Enables the Rust linker to convert ɵɵngDeclareComponent into ɵɵdefineComponent by compiling component templates and host bindings and emitting the needed declarations/metadata (e.g. decls, vars, consts, ngContentSelectors).

Extends linking to cover more component metadata (dependencies, queries, features, styles/encapsulation, change detection, animations) and fixes directive/component inputs handling by converting partial-declaration input shapes into definition format.

Improves dev tooling: HMR update module now conditionally restores inputs from inputConfig to avoid double-processing, the Vite linker plugin switches to async linkAngularPackage and injects Angular defines for optimizeDeps, and e2e coverage is expanded with a new input-based component plus HMR tests (and minor CSS HMR stabilization).

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[Brooooooklyn]

• feat(angular): implement link_component for native Rust linker #24 👈 (View in Graphite)
• main

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