add tool-page renderer and wire route rendering

Render tool-page entries by content type so new tools pages are usable, and fix the RAG calculator over-budget example to match expected output.

Made-with: Cursor

Author: aistripes

content/tools/rag-context-window-calculator.json

@@ -80,9 +80,9 @@
           "reserved_tokens": 6000,
           "chunk_size_tokens": 2000,
           "chunk_overlap_percent": 30,
-          "top_k": 16
+          "top_k": 20
         },
-        "expected_output": "{\"retrieval_tokens\":22400,\"fits_context\":false,\"overflow_tokens\":-6400,\"note\":\"Reduce top_k or chunk size.\"}"
+        "expected_output": "{\"retrieval_tokens\":28000,\"fits_context\":false,\"overflow_tokens\":2000,\"note\":\"Reduce top_k or chunk size.\"}"
       }
     ],
     "how_it_works": "The tool estimates effective tokens per chunk after overlap, multiplies by top_k, and compares the total against available context after reserved prompt budget. It highlights headroom or overflow so you can tune chunk size and top_k before indexing large corpora.",

src/pages/[prefix]/[slug].astro

@@ -6,11 +6,13 @@ import ResourceArticleRenderer from '../../renderers/ResourceArticle';
 import ChecklistRenderer from '../../renderers/Checklist';
 import ComparisonRenderer from '../../renderers/Comparison';
 import GuideRenderer from '../../renderers/Guide';
+import ToolPageRenderer from '../../renderers/ToolPage';
 import DirectoryRenderer from '../../renderers/Directory';
 import type { ResourceArticle } from '../../../schemas/resource-article';
 import type { Checklist } from '../../../schemas/checklist';
 import type { Comparison } from '../../../schemas/comparison';
 import type { Guide } from '../../../schemas/guide';
+import type { ToolPage } from '../../../schemas/tool-page';
 import type { Directory } from '../../../schemas/directory';
 
 export function getStaticPaths() {
@@ -47,6 +49,9 @@ const contentType = content.meta.content_type;
   {contentType === 'guide' && (
     <GuideRenderer client:load content={content as Guide} />
   )}
+  {contentType === 'tool-page' && (
+    <ToolPageRenderer client:load content={content as ToolPage} />
+  )}
   {contentType === 'directory' && (
     <DirectoryRenderer client:load content={content as Directory} />
   )}