Support prototype-named component store keys

[OskarEichler]

Problem

The component Store keeps five public component-name/ID registries in ordinary objects. Names such as toString and __proto__ therefore resolve inherited values: lazy registration can be skipped, unregistered props/instances/wrapped components appear present, and normal store/retrieve operations return incorrect data.

Fix

Initialize all five key registries without Object prototypes. This preserves the existing string-key API and constant-time lookups while making every public component name and ID an independent own key.

Breaking changes

None. Previously broken names now behave like ordinary component names and IDs.

Test plan

• Added parameterized toString and __proto__ regressions covering initial absence and normal store/retrieve behavior for props, component providers, instances, and wrapped components.
• Exact baseline fails both parameterized cases; fixed focused suite passes 17/17.
• Full yarn test-js passes: 38 suites, 397 tests; 11 suites/59 tests remain intentionally skipped.
• Bob module/type builds and git diff --check pass.
• Focused ESLint has no errors; its one no-shadow warning is pre-existing in an unchanged callback test.