refactor: give the asset classes that will leave the framework their dependencies

[ogorzalka]

Step 1 of pollora/assets (plan: .claude/plans/assets-package.md): the classes that will move into the package no longer reach for Laravel.

What changed

• New ports in Asset/Domain/Contracts: ViteManagerFactory (builds the Vite resolver of a container), RuntimeContext (command line or not), PublicPath.
• Their Laravel implementations live in Asset/Infrastructure/Laravel/ (they stay in the framework): LaravelViteManagerFactory, LaravelRuntimeContext, LaravelPublicPath, LaravelAssetFileResolver.
• AssetEnqueuer: takes AssetManager, Action, Filter, the factory, the runtime and a PSR-3 logger instead of Application, resolve(), Log and new ViteManager. Its enqueue still happens in __destruct.
• AssetFile: a static resolver (AssetFile::resolveUsing()) set by the provider, since it is built with new wherever a theme names a file.
• AssetManager: gets a PublicPath (default hot file of a container without one) and an enqueuer factory. AssetContainer, MissingBuilds (PSR-3) and MissingBuildNotice (project root passed in) no longer call public_path(), Log or base_path().
• AssetServiceProvider binds all of it. ViteManager (Laravel's Vite) and RootAssetManager are untouched and stay in the framework.

How it was checked

• Contract test of test: pin the URLs each asset container resolves, in build and hot #484: unchanged in what it pins, passes.
• Full suite: 1912 passed (2 new tests: useVite() asks the factory for the resolver, and says so when none is set).
• Rendered HTML of pollora-test compared with the golden captures taken before the refactor, in build and in hot (theme :5173, plugin :5174, module :5175 at once): identical, 12 pages each. That comparison caught a bug the unit tests did not (a global instanceof ViteManager replace had turned my own instanceof ViteManagerFactory into a class that does not exist: every useVite() threw, 500 on the whole site).
• Three existing tests needed the bindings the provider now supplies: AssetEnqueuerTest (RuntimeContext), ViteManagerTest (MissingBuildNotice with the project root), and the contract test (AssetFile resolver and factory).

Known and unrelated: AssetEnqueuerTest run alone ends with a fatal at shutdown (destructors after the container is gone), the same on the base.