Add bilingual manual and localized docs routes

doc/manual/source/language/expression/import.md

@@ -0,0 +1,14 @@
+# Import Expression
+
+An import expression returns a DCDL module or structured value resolved by the host.
+
+```dcdl
+import "./config.dcdl"
+```
+
+The specifier is a string literal. The host defines its interpretation as a path, resource name, or another identifier.
+See [Modules and Imports](../modules-and-imports.md) for details.
+
+## Evaluation
+
+Imported values are evaluated lazily, and unreferenced fields are not evaluated.