Store and display full provenance including effect_url

- record-run now stores effect_url, effects_commit, infrastructure in provenance
- Asset detail uses stored effect_url (with fallback for older records)
- Shows effects commit hash under effect button
- Shows infrastructure info (software/hardware) if available

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.env.example

@@ -6,6 +6,12 @@ ARTDAG_DOMAIN=artdag.rose-ash.com
 # JWT secret for token signing (generate with: openssl rand -hex 32)
 JWT_SECRET=your-secret-here-generate-with-openssl-rand-hex-32
 
+# L1 server URL for fetching content (images/videos)
+L1_PUBLIC_URL=https://celery-artdag.rose-ash.com
+
+# Effects repository URL for linking to effect source code
+EFFECTS_REPO_URL=https://git.rose-ash.com/art-dag/effects
+
 # Notes:
 # - ARTDAG_USER removed - now multi-actor, each registered user is their own actor
-# - ARTDAG_L1 removed - L1 server URL is sent with each request
+# - L1 URL can also come from provenance data per-asset