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feat(resource): wire inheritance polymorphism into tool binding and auto-discovery #1197

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freemo wants to merge 1 commits from feature/resource-inheritance-wiring into master
pull from: feature/resource-inheritance-wiring
merge into: cleveragents:master
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freemo 2235fece22 feat(resource): wire inheritance polymorphism into tool binding and auto-discovery
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Refactor tool binding to use polymorphic resource type matching via
is_subtype_of() instead of exact string comparison or static parent_types
lists.  A tool declared for resource type 'code' now automatically binds
to 'code/python', 'code/rust', etc.

Resource auto-discovery gains discover_most_specific_type() to resolve
the deepest subtype in the hierarchy, and get_type_tree() enables the
new 'resource type tree' CLI command to visualise the full inheritance
hierarchy.

Plugins can now register custom resource types at runtime via
register_plugin_resource_type() on the registry service and
register_resource_types() on the plugin manager, extending the hierarchy
without code changes.

Resource metadata output includes the full inheritance chain for
debugging (inheritance_chain field in JSON/YAML output).

Key changes:
- BindingResolutionService._is_type_compatible(): delegates to
  is_subtype_of() for polymorphic matching (ADR-042)
- ResourceRegistryService: add discover_most_specific_type(),
  get_type_tree(), register_plugin_resource_type(), and
  get_resource_inheritance_metadata()
- PluginManager: add register_resource_types() extension point
- CLI: add 'resource type tree' command and inheritance_chain in
  resource metadata output
- 14 BDD scenarios covering polymorphic binding, auto-discovery,
  tree hierarchy, plugin registration, and metadata chain

ISSUES CLOSED: #942
 2026-03-30 22:17:00 +00:00