fix(api-docs): output @example doc as raw markdown

The @example tag's doc field from deno doc already contains properly
formatted markdown with code blocks. Previously, the generator was
wrapping this in additional code fences, causing broken nested markdown.

Also exclude dist/ from deno check to avoid validating generated files.

Author: lambdalisue

deno.json

@@ -19,6 +19,7 @@
     "marked": "npm:marked@^15.0.12"
   },
   "exclude": [
+    "dist/",
     "probitas/"
   ],
   "lint": {

lib/api-markdown.ts

@@ -252,20 +252,13 @@ function generateFunctionMarkdown(
     lines.push("");
   }
 
-  // Examples
+  // Examples - doc field is already Markdown, output as-is
   const examples = getExamples(node);
   if (examples.length > 0) {
     lines.push("**Example:**");
     lines.push("");
     for (const example of examples) {
-      const trimmed = example.trim();
-      if (trimmed.startsWith("```")) {
-        lines.push(trimmed);
-      } else {
-        lines.push("```typescript");
-        lines.push(trimmed);
-        lines.push("```");
-      }
+      lines.push(example.trim());
       lines.push("");
     }
   }
@@ -360,20 +353,13 @@ function generateClassMarkdown(
     }
   }
 
-  // Examples
+  // Examples - doc field is already Markdown, output as-is
   const examples = getExamples(node);
   if (examples.length > 0) {
     lines.push("**Example:**");
     lines.push("");
     for (const example of examples) {
-      const trimmed = example.trim();
-      if (trimmed.startsWith("```")) {
-        lines.push(trimmed);
-      } else {
-        lines.push("```typescript");
-        lines.push(trimmed);
-        lines.push("```");
-      }
+      lines.push(example.trim());
       lines.push("");
     }
   }
@@ -446,20 +432,13 @@ function generateInterfaceMarkdown(
     }
   }
 
-  // Examples
+  // Examples - doc field is already Markdown, output as-is
   const examples = getExamples(node);
   if (examples.length > 0) {
     lines.push("**Example:**");
     lines.push("");
     for (const example of examples) {
-      const trimmed = example.trim();
-      if (trimmed.startsWith("```")) {
-        lines.push(trimmed);
-      } else {
-        lines.push("```typescript");
-        lines.push(trimmed);
-        lines.push("```");
-      }
+      lines.push(example.trim());
       lines.push("");
     }
   }