Add 3 deferred virtual resource types (remote, submodule, symlink) with
equivalence metadata for physical-to-virtual resource linking.
Depends on: #662 (child_types reference types introduced by #662)
- Type definitions extracted to _resource_registry_virtual_deferred.py
for consistency with _resource_registry_virtual.py (#329)
- YAML configs with equivalence criteria per spec, spec reference comments
- Bootstrap registration via BUILTIN_TYPES spread, hidden from
resource add scaffolding (user_addable: false)
- Equivalence structural validation in ResourceTypeSpec model validator:
criteria must be a non-empty list of non-empty strings; virtual types
must have sandbox_strategy=none, user_addable=false, handler=None,
all capabilities false
- Behave tests (52 scenarios), Robot tests (7), ASV benchmarks
- DB roundtrip tests verifying virtual types survive bootstrap persistence
- Negative tests: missing equivalence/name/kind, manual add rejection
for all 3 virtual types (register_resource guard), invalid criteria
elements (non-string, empty string)
ISSUES CLOSED: #331
hamza.khyari