docs: update documentation with security enhancements

Updated CLAUDE.md and README.md to document security features:

**CLAUDE.md updates:**
- Expanded Traefik section with security architecture details
- Added Security Configuration section with detailed guides
- Documented HTTP Basic Auth setup and credential management
- Added security testing commands and procedures
- Included TLS/header configuration instructions

**README.md updates:**
- Enhanced PROTOCOLS & SECURITY section
- Added TLS 1.2+ and cipher suite information
- Listed security headers (HSTS, X-Frame-Options, etc.)
- Documented HTTP Basic Auth and rate limiting
- Updated access control list

Documentation now reflects all security hardening applied to
Traefik reverse proxy and service authentication.

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

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

CLAUDE.md

@@ -31,7 +31,7 @@ Configuration is centralized in `arty.yml`:
 
 Sensitive values (passwords, secrets) live in `.env` and override arty.yml defaults.
 
-### Traefik Routing Architecture
+### Traefik Routing & Security Architecture
 Services expose themselves via Docker labels:
 - HTTP → HTTPS redirect on `web` entrypoint (port 80)
 - SSL termination on `web-secure` entrypoint (port 443)
@@ -40,6 +40,13 @@ Services expose themselves via Docker labels:
 - Compression middleware applied via labels
 - All routers scoped to `$NETWORK_NAME` network
 
+**Security Features:**
+- **TLS Security**: Minimum TLS 1.2, strong cipher suites (ECDHE, AES-GCM, ChaCha20), SNI strict mode
+- **Security Headers**: HSTS (1-year), X-Frame-Options, X-XSS-Protection, Content-Type-Options, Referrer-Policy, Permissions-Policy
+- **Dynamic Configuration**: Security settings in `proxy/dynamic/security.yaml` with auto-reload
+- **Rate Limiting**: Available middlewares (100 req/s general, 30 req/s API)
+- **HTTP Basic Auth**: Scrapyd protected with username/password authentication
+
 ### Database Initialization
 `core/postgres/init/01-init-databases.sh` runs on first PostgreSQL startup:
 - Creates `directus` database for Sexy CMS
@@ -142,12 +149,15 @@ Next.js app with embedded SQLite:
 Web scraping cluster with three services:
 - **scrapyd**: Scrapyd daemon exposed at `scrapy.pivoine.art:6800`
   - Web interface for deploying and managing spiders
+  - Protected by HTTP Basic Auth (credentials in `.env`)
   - Data persisted in `scrapyd_data` volume
 - **scrapy**: Development container for running Scrapy commands
   - Shared `scrapy_code` volume for spider projects
 - **scrapyrt**: Scrapyd Real-Time API on port 9080
   - Run spiders via HTTP API without scheduling
 
+**Authentication**: Access requires username/password (stored as `SCRAPY_AUTH_USERS` in `.env` using htpasswd format)
+
 ### n8n (n8n/compose.yaml)
 Workflow automation platform:
 - **n8n**: n8n application exposed at `n8n.pivoine.art:5678`
@@ -195,6 +205,53 @@ docker volume ls | grep falcon
 docker volume inspect <volume_name>
 ```
 
+## Security Configuration
+
+### HTTP Basic Authentication
+Scrapyd is protected with HTTP Basic Auth via Traefik middleware:
+- Credentials stored in `.env` as `SCRAPY_AUTH_USERS`
+- Format: `username:$apr1$hash` (Apache htpasswd format)
+- Generate new hash: `openssl passwd -apr1 'your_password'`
+- Remember to escape `$` signs with `$$` in `.env` files
+
+**To update credentials:**
+```bash
+# Generate hash
+echo "username:$(openssl passwd -apr1 'new_password')"
+
+# Update .env
+SCRAPY_AUTH_USERS=username:$$apr1$$hash$$here
+
+# Sync to VPS
+rsync -avzhe ssh .env root@vps:~/Projects/docker-compose/
+
+# Restart services
+ssh -A root@vps "cd ~/Projects/docker-compose && arty restart"
+```
+
+### Security Headers & TLS
+Global security settings applied via `proxy/dynamic/security.yaml`:
+- **TLS**: Minimum TLS 1.2, strong ciphers only, SNI strict mode
+- **Headers**: HSTS, X-Frame-Options, CSP, Referrer-Policy, etc.
+- **Rate Limiting**: Available middlewares for DDoS protection
+
+Test security:
+```bash
+# Check headers
+curl -I https://scrapy.pivoine.art
+
+# SSL Labs test
+# Visit: https://www.ssllabs.com/ssltest/analyze.html?d=scrapy.pivoine.art
+```
+
+### Modifying Security Settings
+Edit `proxy/dynamic/security.yaml` to customize:
+- TLS versions and cipher suites
+- Security header values
+- Rate limiting thresholds
+
+Traefik automatically reloads changes (no restart needed).
+
 ## Troubleshooting
 
 ### Services won't start

README.md

@@ -202,14 +202,23 @@ THE FALCON (falcon_network)
 🔐 ENCRYPTION STANDARD
 ├─ All transmissions encrypted via HTTPS
 ├─ Let's Encrypt quantum certificates
-├─ Traefik middleware compression active
-└─ CORS shields configured per sector
+├─ TLS 1.2+ with strong cipher suites only
+├─ HSTS enabled (1-year, preload ready)
+└─ SNI strict mode enforced
 
-🛡️ ACCESS CONTROL
+🛡️ SECURITY HEADERS
+├─ X-Frame-Options: SAMEORIGIN
+├─ X-XSS-Protection enabled
+├─ Content-Type-Options: nosniff
+├─ Referrer-Policy configured
+└─ Permissions-Policy restrictions
+
+🔒 ACCESS CONTROL
 ├─ Admin credentials in .env vault
 ├─ Database authentication: scram-sha-256
-├─ VPN cloaking device enabled
-└─ Email verification for new recruits
+├─ HTTP Basic Auth on sensitive endpoints
+├─ Rate limiting available (100 req/s)
+└─ VPN cloaking device enabled
 ```
 
 ---