Add auto-heal pipeline command and fix multi-source draft processing

- Add `ietf auto` command: fetches, analyzes, embeds, extracts ideas,
  and refreshes gaps across all sources with cost-based auto-approval
- Fix SourceDocument→Draft conversion in auto fetch step
- Fix gap_analysis method name in auto command
- Process all 270 unrated ETSI/ISO/ITU/NIST drafts (761 total, all rated)
- Update web UI templates and data layer for multi-source support

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

src/ietf_analyzer/sources/iso.py

@@ -151,10 +151,11 @@ class ISOFetcher:
                     continue
 
                 name = _iso_id_to_name(ref)
+                abstract = scope[:2000] if scope else f"ISO/IEC standard: {title}. Committee: {committee}."
                 docs.append(SourceDocument(
                     name=name,
                     title=f"{ref}: {title}",
-                    abstract=f"ISO/IEC standard: {title}. Committee: {committee}. Status: {status}.",
+                    abstract=abstract,
                     source="iso",
                     source_id=ref,
                     source_url=f"https://www.iso.org/standard/{ref.split(':')[0].replace('/', '%2F').replace(' ', '%20')}.html",