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/extension.bundle.cjs

@@ -1,4 +1,4 @@
-// WRN editor extension source hash: 42ceb9645e98cbc79abd3104e8426da535affc52327fb9e42ce658888d1b9941
+// WRN editor extension source hash: 0da6296bd5dd1b84aece4ad5aed742c81deefefc4189ead29706be24c22d1cf9
 // WRN editor extension generator hash: 456d1d614e44e5fb1f19b784176c09cf2ade9b64ef73a17934c2698150b62728
 "use strict";
 var __commonJS = (cb, mod) => () => (mod || cb((mod = { exports: {} }).exports, mod), mod.exports);