refusedViewModel compared only the top-level type with the controller's
model. It now walks the type through pointers, slices, arrays, maps,
struct fields and the results of exported methods, and the values held
in interface-typed members, refusing the controller's model, any other
GORM model (TableName, a gorm tag, gorm.Model, gorm.DeletedAt) and
html/template's trusted content types anywhere in that structure.
- fields.yaml type: partial with a bare path name and config_list.yaml
headerPartial resolve to {ConfigDir}/_{name}.htm, parsed at boot; the
controller must implement pact.AdminPartialData
- html/template render against a curated view model, then x/net/html
ParseFragment and a tag, attribute and URL allowlist with 64 KiB, 2000-node
and depth-32 caps; the model type and trusted template types are refused
- GET .../partials/{name} with optional ?id= loaded through the form scope
- golang.org/x/net becomes a direct requirement (D-18), no new module
