cleanup, docs

site/doc/pages/0_DValue.txt

@@ -49,10 +49,6 @@ You will encounter `DValue` throughout the runtime, especially in:
 
 All read accessors are `const` and never modify the tree; they work directly on `const DValue&` values such as `each()` callback parameters. Every `to_*` conversion takes an optional default that is returned when the value is missing or cannot be converted — see the individual pages (`2_DValue_to_string`, `2_DValue_to_s64`, `2_DValue_to_u64`, `2_DValue_to_f64`, `2_DValue_to_bool`) for the exact rules:
 
-```cpp
-String title = context.props["title"].to_string("Untitled");
-s64 page_size = context.cfg.get_by_path("app/page_size").to_s64(25);
-```
 
 `operator[]` creates missing entries, just like `std::map`. `.has()` and `.key()` are the non-mutating lookup helpers, and `.get_by_path()` is the non-creating traversal helper.
 
@@ -112,31 +108,12 @@ For non-map values, `each()` still invokes the callback once:
 - `t` is the current value
 - `key` is an empty string
 
-```cpp
-context.connection["items"].each([&](const DValue& item, String key) {
-    print(key, ": ", item.to_string(), "\n");
-});
-```
 
 ## Examples
 
-```cpp
-String theme = context.cfg.get_by_path("theme/key").to_string();
 
-u64 compiled_mtime = unit_info("test/hello.uce")["compiled_mtime"].to_u64();
-
-bool dark_mode = context.props["dark_mode"].to_bool();
-
-if(DValue* user = payload.key("user")) {
-    print(user->to_json());
-}
-
-payload.get_or_create("headers")->get_or_create("Content-Type")->set("text/plain");
-
-StringMap headers = payload["headers"].to_stringmap();
-```
-
-## Related Concepts
-
-- PHP: nested associative arrays, `stdClass`, decoded JSON trees, and helper accessors for deep array paths
-- JavaScript / Node.js: plain objects, arrays, `Map`, and JSON-shaped data passed between handlers
+:example
+DValue user;
+user["name"] = "Ada";
+user["active"] = true;
+print(user["name"].to_string(), "\n");