fix(@angular/cli): correct boolean parsing in MCP example front matter

This commit fixes a bug in the `parseFrontmatter` utility where boolean values (true/false) were being incorrectly parsed as strings.

The Zod schema validator for the `experimental` flag would reject these string values, causing the example database generation to fail.

The parser has been updated to explicitly check for "true" and "false" strings and convert them to their corresponding boolean types, ensuring that the front matter is parsed correctly. This fix is applied to both the build-time database generator and the runtime tool.

Author: clydin

packages/angular/cli/src/commands/mcp/tools/examples.ts

@@ -404,7 +404,14 @@ function parseFrontmatter(content: string): Record<string, unknown> {
       isArray = value.trim() === '';
 
       if (!isArray) {
-        data[currentKey] = value.trim();
+        const trimmedValue = value.trim();
+        if (trimmedValue === 'true') {
+          data[currentKey] = true;
+        } else if (trimmedValue === 'false') {
+          data[currentKey] = false;
+        } else {
+          data[currentKey] = trimmedValue;
+        }
       }
     } else {
       const arrayItemMatch = line.match(/^\s*-\s*(.*)/);

tools/example_db_generator.js

@@ -48,7 +48,14 @@ function parseFrontmatter(content) {
       isArray = value.trim() === '';
 
       if (!isArray) {
-        data[currentKey] = value.trim();
+        const trimmedValue = value.trim();
+        if (trimmedValue === 'true') {
+          data[currentKey] = true;
+        } else if (trimmedValue === 'false') {
+          data[currentKey] = false;
+        } else {
+          data[currentKey] = trimmedValue;
+        }
       }
     } else {
       const arrayItemMatch = line.match(/^\s*-\s*(.*)/);