Platform upgrade: semantic search, citations, readiness, tests, Docker

Major features added by 5 parallel agent teams:
- Semantic "Ask" (NL queries via FTS5 + embeddings + Claude synthesis)
- Global search across drafts, ideas, authors, gaps
- REST API expansion (14 endpoints, up from 3) with CSV/JSON export
- Citation graph visualization (D3.js, 440 nodes, 2422 edges)
- Standards readiness scoring (0-100 composite from 6 factors)
- Side-by-side draft comparison view with shared/unique analysis
- Annotation system (notes + tags per draft, DB-persisted)
- Docker deployment (Dockerfile + docker-compose with Ollama)
- Scheduled updates (cron script with log rotation)
- Pipeline health dashboard (stage progress bars, cost tracking)
- Test suite foundation (54 pytest tests covering DB, models, web data)

Fixes: compare_drafts() stubbed→working, get_authors_for_draft() bug,
source-aware analysis prompts, config env var overrides + validation,
resilient batch error handling with --retry-failed, observatory --dry-run

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

src/webui/templates/gaps.html

@@ -55,9 +55,9 @@
     </div>
 </div>
 
-<!-- Gap cards sorted by severity -->
-<div class="space-y-4">
-    {% for gap in gaps | sort(attribute='severity') %}
+<!-- Gap cards sorted by severity (critical first) -->
+<div class="space-y-4" id="gapList">
+    {% for gap in gaps %}
     <a href="/gaps/{{ gap.id }}" class="block bg-slate-900 rounded-xl border
         {% if gap.severity == 'critical' %}border-red-500/40 hover:border-red-500/60
         {% elif gap.severity == 'high' %}border-orange-500/30 hover:border-orange-500/50