agora(openai#19): add Community Tools section (Bortlesboat's 3 repos)

- New <section id="community-tools"> between #resources and #changelog
- Lists @Bortlesboat's three tools with factual one-line descriptions:
    parameter-golf-size-checker (16MB cap validator + submission.json drafter)
    parameter-golf-sweeps (JSON-config sweep runner with footer parsing)
    parameter-golf-runpod-starter (RunPod bootstrap scripts)
- AGORA:COMMUNITY_TOOLS_START/END sentinels wrap the card for pipeline management
- Nav link 'Community Tools' added to top nav
- Submit-your-tool invite line at bottom
- No marketing copy or lineage claims; tone is factual throughout

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: Mato

index.html

@@ -278,6 +278,7 @@ <h1>OLYMPUS: The Agora</h1>
   <a href="#community-activity" style="color:#bc8cff;">Community Impact</a>
   <a href="#contribute">Contribute</a>
   <a href="#resources">Resources</a>
+  <a href="#community-tools">Community Tools</a>
   <a href="#changelog">Changelog</a>
 </nav>
 
@@ -2832,6 +2833,32 @@ <h4 style="margin:0 0 0.5rem 0;color:var(--text-bright);"><a href="https://githu
 </div>
 </section>
 
+<!-- SECTION: COMMUNITY TOOLS -->
+<section id="community-tools">
+<h2>Community Tools</h2>
+<p style="color:var(--text-dim);margin-bottom:1rem;">Tools other community members have built that participants may find useful.</p>
+<!-- AGORA:COMMUNITY_TOOLS_START -->
+<div class="card" style="text-align:left;max-width:none;">
+<h3 style="margin-top:0;"><a href="https://github.com/Bortlesboat" style="color:var(--text-bright);">@Bortlesboat</a></h3>
+<ul style="list-style:none;padding:0;margin:0;">
+  <li style="padding:0.5rem 0;border-bottom:1px solid var(--border);">
+    <strong><a href="https://github.com/Bortlesboat/parameter-golf-size-checker">parameter-golf-size-checker</a></strong>
+    <p style="margin:0.25rem 0 0;font-size:0.88rem;color:var(--text-dim);line-height:1.5;">Validates record folders against the 16MB artifact cap and drafts a submission.json before you open a PR.</p>
+  </li>
+  <li style="padding:0.5rem 0;border-bottom:1px solid var(--border);">
+    <strong><a href="https://github.com/Bortlesboat/parameter-golf-sweeps">parameter-golf-sweeps</a></strong>
+    <p style="margin:0.25rem 0 0;font-size:0.88rem;color:var(--text-dim);line-height:1.5;">JSON-config training sweep runner with footer parsing for tracking BPB across hyperparameter grid runs.</p>
+  </li>
+  <li style="padding:0.5rem 0;">
+    <strong><a href="https://github.com/Bortlesboat/parameter-golf-runpod-starter">parameter-golf-runpod-starter</a></strong>
+    <p style="margin:0.25rem 0 0;font-size:0.88rem;color:var(--text-dim);line-height:1.5;">RunPod-first bootstrap scripts for spinning up training environments quickly.</p>
+  </li>
+</ul>
+</div>
+<!-- AGORA:COMMUNITY_TOOLS_END -->
+<p style="color:var(--text-dim);font-size:0.8rem;margin-top:0.75rem;"><a href="https://github.com/MatoTeziTanka/parameter-golf/issues/new?template=feedback.yml">Submit your tool</a> &mdash; open a feedback issue with a link and one-line description.</p>
+</section>
+
 <!-- CHANGELOG -->
 <section id="changelog">
 <h2>Changelog &amp; Roadmap</h2>