fix(managed): retain nested names and ReadyToRun observations

Resolve attribute display names from validated nesting and parsed member facts, admit composed names before allocation, and preserve unknown malformed chains. Keep ReadyToRun classification ahead of metadata hints while retaining each observed hint.

Fixes #6815
Fixes #6810

docs/managed-code-analysis.md

@@ -182,6 +182,9 @@ declares API compatibility across multiple .NET implementations. REA preserves
 that target in `target_frameworks` and leaves `runtime_family` as `unknown`
 unless independent markers identify a runtime family, such as a ReadyToRun
 signature.
+When ReadyToRun is observed, `runtime_family` remains `modern-dotnet` even if
+Unity or target-framework hints are also present; the separate hint evidence
+is retained in the classification evidence list.
 
 ### Resource admission
 
@@ -542,6 +545,10 @@ preserving readable member and attribute facts.
 The retained inverse indexes are admitted against the existing representation
 budget before allocation.
 
+Custom-attribute `type_name` uses `Outer+Nested` when its local TypeDef or
+TypeRef enclosing chain is readable. It remains `null` when the constructor's
+type or required enclosing facts cannot be resolved.
+
 `exported_types` reports ExportedType rows as declared. Facade assemblies such
 as .NET `System.Runtime.dll` provide their types this way: `forwarder: true`
 marks a type forwarder, and `implementation_token` names the AssemblyRef, File,