fix: use PascalCase schema names and add comparison tests

- Change getSchemaName to use PascalCase (ProgressTokenSchema) to match
  existing types.ts convention
- Add test/generated/spec.schemas.compare.test.ts with 79 tests verifying
  generated schemas match manual types.ts schemas
- Document known limitation: ts-to-zod generates `z.any()` for `typeof`
  expressions (e.g., JSONRPC_VERSION), while manual schemas use literals

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Author: ochafik

scripts/generate-schemas.ts

@@ -60,9 +60,9 @@ async function main() {
         sourceText,
         keepComments: true,
         skipParseJSDoc: false,
-        // Keep camelCase naming for backward compatibility
-        // e.g., ProgressToken → progressTokenSchema
-        getSchemaName: (typeName: string) => `${typeName.charAt(0).toLowerCase()}${typeName.slice(1)}Schema`,
+        // Use PascalCase naming to match existing types.ts convention
+        // e.g., ProgressToken → ProgressTokenSchema
+        getSchemaName: (typeName: string) => `${typeName}Schema`,
     });
 
     if (result.errors.length > 0) {