**Motivations:**
- Ajouter dates manquantes dans hash_list.txt et compléter historique
- Compléter blockTime manquants dans utxo_list.txt et compléter historique
- Récupérer frais depuis transactions d'ancrage (OP_RETURN) et les stocker
- Bouton UI pour déclencher récupération frais
- Diagnostic Bloc Rewards (pourquoi ~4700 BTC au lieu de 50 BTC)
**Root causes:**
- hash_list.txt sans date (format ancien)
- utxo_list.txt blockTime souvent vide
- Frais absents du fichier (métadonnées OP_RETURN non stockées)
- Pas de moyen de récupérer/compléter frais depuis UI
**Correctifs:**
- hash_list.txt : format étendu avec date (rétrocompatible)
- utxo_list.txt : blockTime complété automatiquement lors écritures
- fees_list.txt : nouveau fichier pour stocker frais
- updateFeesFromAnchors() : récupère frais depuis OP_RETURN ancrages
- Endpoint /api/utxo/fees/update pour déclencher récupération
- Bouton "Récupérer les frais depuis les ancrages" dans section Frais (spinner)
- Scripts batch : complete-hash-list-dates.js, complete-utxo-list-blocktime.js
- Script diagnostic : diagnose-bloc-rewards.js (subsidy, coinbase, listunspent)
**Evolutions:**
- Frais chargés depuis fees_list.txt dans getUtxoList
- Complétion automatique dates/blockTime lors écritures futures
**Pages affectées:**
- signet-dashboard/src/bitcoin-rpc.js
- signet-dashboard/src/server.js
- signet-dashboard/public/utxo-list.html
- scripts/complete-hash-list-dates.js
- scripts/complete-utxo-list-blocktime.js
- scripts/diagnose-bloc-rewards.js
- features/utxo-list-fees-update-and-historical-completion.md
**Motivations:**
- Complete documentation for dashboard, domains, ports and environment configuration
- Add new services (ClamAV API, Watermark API) to the infrastructure
- Enhance dashboard with new pages and improved functionality
- Improve deployment scripts and service configurations
**Root causes:**
- Missing comprehensive documentation for infrastructure setup
- Need for antivirus scanning service integration
- Need for watermark service integration
- Dashboard required additional pages and features
**Correctifs:**
- Added comprehensive documentation in docs/ (DASHBOARD.md, DOMAINS_AND_PORTS.md, ENVIRONMENT.md)
- Updated systemd service files with proper environment variables
- Enhanced nginx proxy configuration script
- Updated maintenance documentation
**Evolutions:**
- Added new ClamAV API service (api-clamav) for file scanning
- Added new Watermark API service (api-filigrane) for document watermarking
- Enhanced signet-dashboard with new learn.html page
- Improved dashboard UI with better styles and navigation
- Enhanced app.js with new functionality and better error handling
- Updated API documentation page with complete endpoint descriptions
- Added deployment scripts for watermark and nginx configuration
- Updated hash and UTXO lists with latest data
- Enhanced server.js with new routes and improved Bitcoin RPC integration
**Pages affectées:**
- docs/DASHBOARD.md: New comprehensive dashboard documentation
- docs/DOMAINS_AND_PORTS.md: New infrastructure domains and ports documentation
- docs/ENVIRONMENT.md: New environment variables documentation
- docs/MAINTENANCE.md: Updated maintenance procedures
- docs/README.md: Updated main documentation
- signet-dashboard/public/app.js: Enhanced with new features
- signet-dashboard/public/styles.css: Improved styling
- signet-dashboard/public/index.html: Enhanced main page
- signet-dashboard/public/learn.html: New educational page
- signet-dashboard/public/api-docs.html: Enhanced API documentation
- signet-dashboard/public/hash-list.html: Updated hash list page
- signet-dashboard/public/utxo-list.html: Updated UTXO list page
- signet-dashboard/public/join-signet.html: Updated join signet page
- signet-dashboard/src/server.js: Enhanced server with new routes
- signet-dashboard/start.sh: Updated startup script
- signet-dashboard/signet-dashboard.service: Updated systemd service
- api-anchorage/anchorage-api.service: Updated systemd service
- api-faucet/faucet-api.service: Updated systemd service
- configure-nginx-proxy.sh: Enhanced nginx configuration script
- add-watermark-certificate.sh: New watermark certificate script
- deploy-watermark-nginx.sh: New deployment script
- api-clamav/: New ClamAV API service
- api-filigrane/: New Watermark API service
- hash_list.txt, utxo_list.txt: Updated with latest data
- anchor_count.txt: Updated anchor count
**Motivations:**
- Fix insufficient UTXO amount error in anchor API
- Ensure continuous availability of usable UTXOs for anchor transactions
- Improve anchor transaction reliability and efficiency
**Root causes:**
- UTXO selection logic was too restrictive, rejecting UTXOs larger than needed
- No automatic provisioning of new usable UTXOs when existing ones were not suitable
- Algorithm prevented efficient use of available UTXOs
**Correctifs:**
- Refactored createAnchorTransaction() to provision 7 UTXOs of 2500 sats on each anchor
- Use single large UTXO to create 1 anchor output + 7 provisioning outputs + change
- Simplified UTXO selection: single large UTXO per transaction instead of multiple small ones
- Added UTXO provisioning logic in signet-dashboard
- Enhanced Bitcoin RPC methods in both api-anchorage and signet-dashboard
- Added documentation in fixKnowledge/api-anchorage-utxo-provisioning.md
**Evolutions:**
- Enhanced signet-dashboard with new pages (hash-list, utxo-list, join-signet, api-docs)
- Improved Bitcoin RPC client with better error handling and UTXO management
- Added cache files for hash and UTXO lists
- Updated api-faucet with improved server configuration
- Enhanced anchor count tracking
**Pages affectées:**
- api-anchorage/src/bitcoin-rpc.js: Complete refactor of createAnchorTransaction()
- api-anchorage/src/routes/anchor.js: Enhanced anchor route
- api-anchorage/src/server.js: Server configuration updates
- signet-dashboard/src/bitcoin-rpc.js: Added comprehensive Bitcoin RPC client
- signet-dashboard/src/server.js: Enhanced server with new routes
- signet-dashboard/public/: Added new HTML pages and updated app.js
- api-faucet/src/server.js: Server improvements
- api-faucet/README.md: Documentation updates
- fixKnowledge/api-anchorage-utxo-provisioning.md: New documentation
- anchor_count.txt, hash_list.txt, utxo_list.txt: Tracking files
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