feat(compiler): support the three api render-binding forms

- Parse api="name", api="name()", and api="name({ ... })" render bindings
  for apis {} (mode "any") blocks, mirroring @click="fn()" syntax.
- Render-bind by calling Task 4's generated server `api` object directly
  (api.<name>(args)) rather than re-implementing the fetch/response
  transport, spliced into the SSR template via the existing loop/expression
  sentinel mechanism so the call runs inside the async render function with
  await support.
- A block that is both render-bound and called from code runs twice by
  design (no dedup); pinned with a test.
- Fix packages/syntax's attribute-value lexer (readQuoted) to honor
  backslash-escaped quotes, needed so an api="..." call expression can
  itself contain a quoted string/object literal.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

editors/vscode/src/language-server.cjs

@@ -1,5 +1,5 @@
 #!/usr/bin/env node
-// WRN editor language server source hash: d42dc4f557c0cb990f1d164708ca5d9ed8ddeabca3270f1b99f175b1f342572e
+// WRN editor language server source hash: 9614834cb7909e77f707aa31a8cc87ec6193ad642a81ee52870fd6872785fa4e
 // WRN editor language server generator hash: f593a44aaf05495b789ce7a3086bee1eebb951b884d41c0e017bbcfe5f547e72
 // @bun @bun-cjs
 (function(exports, require, module, __filename, __dirname) {var __create = Object.create;
@@ -172082,12 +172082,18 @@ function parseHtmlView(src, pos) {
     if (quote !== '"' && quote !== "'")
       return fail("Expected a quoted attribute value");
     i++;
-    const start = i;
-    while (i < src.length && src[i] !== quote)
+    let value = "";
+    while (i < src.length && src[i] !== quote) {
+      if (src[i] === "\\" && i + 1 < src.length) {
+        value += src[i + 1];
+        i += 2;
+        continue;
+      }
+      value += src[i];
       i++;
+    }
     if (i >= src.length)
       return fail("Unterminated attribute value");
-    const value = src.slice(start, i);
     i++;
     return value;
   };