Autoparser - complete refactoring of parser architecture (#18675)

* Autoparser - full single commit squish

* Final pre-merge changes: minor fixes, Kimi 2.5 model parser

tests/test-peg-parser.cpp

@@ -20,6 +20,7 @@ int main(int argc, char *argv[]) {
     t.test("json", test_json_parser);
     t.test("gbnf", test_gbnf_generation);
     t.test("serialization", test_json_serialization);
+    t.test("python-dict", test_python_dict_parser);
 
     return t.summary();
 }