Fix web emscripten bindings, bump to 0.1.26 (#456)

Running `cd web; npm run build` against the latest main yields these
errors:

```log
+ emcc --bind -o src/xgrammar_binding.js src/xgrammar_binding.cc build/libxgrammar.a -O3 -s EXPORT_ES6=1 -s ERROR_ON_UNDEFINED_SYMBOLS=0 -s NO_DYNAMIC_EXECUTION=1 -s MODULARIZE=1 -s SINGLE_FILE=1 -s EXPORTED_RUNTIME_METHODS=FS -s ALLOW_MEMORY_GROWTH=1 -I../include -I../3rdparty/picojson -I../3rdparty/dlpack/include
src/xgrammar_binding.cc:147:34: error: use of undeclared identifier '_JSONSchemaToEBNF'
  147 |   function("_JSONSchemaToEBNF", &_JSONSchemaToEBNF);
      |                                  ^~~~~~~~~~~~~~~~~
src/xgrammar_binding.cc:169:8: error: no matching member function for call to 'function'
  165 |   class_<GrammarCompiler>("GrammarCompiler")
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  166 |       .constructor<const TokenizerInfo&, int, bool>()
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  167 |       .function("CompileJSONSchema", &GrammarCompiler::CompileJSONSchema)
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  168 |       .function("CompileBuiltinJSONGrammar", &GrammarCompiler::CompileBuiltinJSONGrammar)
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  169 |       .function("CompileGrammar", &GrammarCompiler::CompileGrammar)
      |       ~^~~~~~~~
/home/logan/emsdk/upstream/emscripten/cache/sysroot/include/emscripten/bind.h:1577:44: note: candidate template ignored: couldn't infer template argument 'Callable'
 1577 |     EMSCRIPTEN_ALWAYS_INLINE const class_& function(const char* methodName, Callable callable, Policies...) const {
      |                                            ^
src/xgrammar_binding.cc:182:56: error: no member named '_DebugAcceptString' in 'xgrammar::GrammarMatcher'
  182 |       .function("_DebugAcceptString", &GrammarMatcher::_DebugAcceptString);
      |                                                        ^~~~~~~~~~~~~~~~~~
3 errors generated.
```

It seems these were changed in #123 (_JSONSchemaToEBNF relocated), #327
(_DebugAcceptString renamed), #428 (CompileGrammar gains overload)

I've:

1. Asked Claude to update these bindings for me
2. Tested the web example app
3. Built `web-llm` using this version of `web-xgrammar` and tested chat
completions in my own app (grammar-constrained generation is much faster
thanks to #308!)

<img width="964" height="477" alt="image"
src="https://github.com/user-attachments/assets/8529375c-ab3c-454b-91fd-e18134584035"
/>

---------

Co-authored-by: Yixin Dong <[email protected]>

Author: loganzartman

web/package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@mlc-ai/web-xgrammar",
-  "version": "0.1.0",
+  "version": "0.1.26",
   "description": "",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",

web/package.json

@@ -13,6 +13,7 @@
 #include <iostream>
 #include <memory>
 
+#include "../../cpp/json_schema_converter.h"
 #include "../../cpp/testing.h"
 
 // #include "../../cpp/support/logging.h"
@@ -144,7 +145,18 @@ EMSCRIPTEN_BINDINGS(xgrammar) {
   function("vecIntToView", &vecIntToView);
 
   // Testing methods
-  function("_JSONSchemaToEBNF", &_JSONSchemaToEBNF);
+  function(
+      "_JSONSchemaToEBNF",
+      select_overload<std::string(
+          const std::string&,
+          bool,
+          std::optional<int>,
+          std::optional<std::pair<std::string, std::string>>,
+          bool,
+          std::optional<int>,
+          JSONFormat
+      )>(&JSONSchemaToEBNF)
+  );
   function("DebugGetMaskedTokensFromBitmask", &Testing_DebugGetMaskedTokensFromBitmask);
 
   class_<Grammar>("Grammar")
@@ -166,7 +178,10 @@ EMSCRIPTEN_BINDINGS(xgrammar) {
       .constructor<const TokenizerInfo&, int, bool>()
       .function("CompileJSONSchema", &GrammarCompiler::CompileJSONSchema)
       .function("CompileBuiltinJSONGrammar", &GrammarCompiler::CompileBuiltinJSONGrammar)
-      .function("CompileGrammar", &GrammarCompiler::CompileGrammar)
+      .function(
+          "CompileGrammar",
+          select_overload<CompiledGrammar(const Grammar&)>(&GrammarCompiler::CompileGrammar)
+      )
       .function("ClearCache", &GrammarCompiler::ClearCache);
 
   class_<GrammarMatcher>("GrammarMatcher")
@@ -179,5 +194,5 @@ EMSCRIPTEN_BINDINGS(xgrammar) {
       .function("Reset", &GrammarMatcher::Reset)
       .function("FindJumpForwardString", &GrammarMatcher::FindJumpForwardString)
       .function("Rollback", &GrammarMatcher::Rollback)
-      .function("_DebugAcceptString", &GrammarMatcher::_DebugAcceptString);
+      .function("AcceptString", &GrammarMatcher::AcceptString);
 }