feat: refresh pipeline, reorganize draft generation, polish public pages

Pipeline refresh:
- Extract ideas from 46 remaining drafts (844 total ideas now)
- Clear stale llm_cache entries blocking re-extraction
- Re-run gap analysis with expanded corpus: 10 gaps (was 12), fresh IDs #1-#10
- Re-link 3 proposals to new gap IDs
- Add scripts/pipeline-refresh.sh for reproducible runs

Draft generation moved from gaps to proposals:
- Remove "Generate Internet-Draft" section from gap detail page
- Add it to proposal detail page instead (proposals → generate I-D flow)
- New route POST /proposals/<id>/generate with richer context
  (proposal title + description + linked gap topics)
- Remove misleading "Search related drafts" link from gap page
  (related drafts already shown inline)

Public page polish:
- Overview: update subtitle to mention all 6 standards bodies
- About: describe multi-source scope (IETF, ISO, ITU-T, ETSI, NIST, W3C)
- About: add guiding question ("Where is the AI agent standards race heading?")
- Obsidian export button hidden in production mode (prior commit)

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

src/webui/templates/about.html

@@ -10,14 +10,21 @@
     <div class="bg-slate-900 rounded-xl border border-slate-800 p-6 mb-6">
         <h2 class="text-lg font-semibold text-white mb-3">What is this?</h2>
         <p class="text-sm text-slate-400 leading-relaxed mb-4">
-            A tool for tracking, categorizing, rating, and mapping IETF Internet-Drafts
-            focused on AI and agent-related topics. It uses Claude for analysis and rating,
-            Ollama for embeddings, and SQLite for storage.
+            A research tool for tracking, categorizing, rating, and mapping standardization
+            documents on AI and agent-related topics across six standards bodies:
+            <span class="text-slate-200">IETF</span>,
+            <span class="text-slate-200">ISO/IEC</span>,
+            <span class="text-slate-200">ITU-T</span>,
+            <span class="text-slate-200">ETSI</span>,
+            <span class="text-slate-200">NIST</span>, and
+            <span class="text-slate-200">W3C</span>.
+            It uses Claude for analysis and rating, Ollama for embeddings, and SQLite for storage.
         </p>
         <p class="text-sm text-slate-400 leading-relaxed">
-            The dashboard provides interactive visualizations of the draft landscape,
+            The dashboard provides interactive visualizations of the standardization landscape,
             including category breakdowns, rating distributions, author networks,
-            extracted ideas, and gap analysis.
+            extracted ideas, and gap analysis — answering the question:
+            <em class="text-slate-300">Where is the AI agent standards race heading, and what's missing?</em>
         </p>
     </div>
 
@@ -54,10 +61,12 @@
     <div class="bg-slate-900 rounded-xl border border-slate-800 p-6 mb-6">
         <h2 class="text-lg font-semibold text-white mb-3">Data Collection Methodology</h2>
         <p class="text-sm text-slate-400 leading-relaxed mb-4">
-            Drafts are discovered by searching the
+            IETF drafts are discovered via the
             <a href="https://datatracker.ietf.org" class="text-blue-400 hover:text-blue-300 transition">IETF Datatracker API</a>
-            for documents whose abstract contains any of the following keywords.
-            Only drafts submitted since <span class="text-slate-200 font-medium">{{ fetch_since }}</span> are included.
+            by searching abstracts for the keywords below
+            (only drafts since <span class="text-slate-200 font-medium">{{ fetch_since }}</span>).
+            ISO, ITU-T, ETSI, NIST, and W3C documents are sourced from their respective public catalogs
+            using related search terms.
         </p>
 
         <h3 class="text-sm font-semibold text-slate-300 mb-2">Search Keywords</h3>
@@ -124,7 +133,7 @@
             <li><span class="text-slate-200 font-medium">Embeddings:</span> Ollama (nomic-embed-text)</li>
             <li><span class="text-slate-200 font-medium">Storage:</span> SQLite with FTS5 full-text search</li>
             <li><span class="text-slate-200 font-medium">Dashboard:</span> Flask, Tailwind CSS, Plotly.js</li>
-            <li><span class="text-slate-200 font-medium">Data source:</span> IETF Datatracker API</li>
+            <li><span class="text-slate-200 font-medium">Data sources:</span> IETF Datatracker, ISO, ITU-T, ETSI, NIST, W3C</li>
         </ul>
     </div>
 </div>