feat: add Cerro Torre verified container integration

Complete integration with Cerro Torre/Vörðr/Svalinn verified container
ecosystem. Adds cryptographic provenance, threshold signing, and
formally verified container packaging as an alternative to Docker.

Added:
- manifests/php-aegis-wordpress.ctp: Complete Cerro Torre manifest with
  cryptographic provenance chain, threshold signing (2-of-3), federated
  transparency logs, SELinux policy, capability dropping, network
  isolation, and SBOM/attestation requirements
- docs/CERRO-TORRE-INTEGRATION.md: Comprehensive integration guide
  covering building, deployment, verification, Svalinn gateway, and
  migration from Docker
- docs/VALIDATION-PLAN.md: Real-world validation plan for WordPress
  plugins/themes with Cerro Torre deployment scenarios
- docs/wiki/Examples.md: 50+ practical code examples and recipes
- docs/wiki/IndieWeb-Security.md: Complete IndieWeb protocols guide
  (Micropub, IndieAuth, Webmention)
- docs/wiki/WordPress-Integration.md: WordPress-specific integration
  guide with 23 functions documented

Updated:
- README.adoc: Added Cerro Torre, rate limiting, IndieWeb to features
- STATE.scm: 85% completion, milestone v0.7-cerro-torre COMPLETE

This replaces Docker with formally verified container packaging using
Ada/SPARK tooling, providing complete supply chain security with
cryptographic guarantees. Integrates with the hyperpolymath verified
container ecosystem (cerro-torre, vordr, svalinn).

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

Author: Your Name

README.adoc

@@ -39,7 +39,11 @@ See link:POSITIONING.md[POSITIONING.md] for detailed guidance.
 * **Input Validation** - Strict validation for emails, URLs, IPs, UUIDs, and more
 * **Context-Aware Sanitization** - HTML, JS, CSS, URL, and JSON output escaping
 * **Security Headers** - Easy CSP, HSTS, X-Frame-Options, and more
+* **Rate Limiting** - Token bucket algorithm with file/memory backends
+* **IndieWeb Security** - Micropub, IndieAuth, Webmention with SSRF prevention
 * **RDF/Turtle Escaping** - Unique W3C-compliant semantic web security (no other PHP lib does this)
+* **Cerro Torre Integration** - Verified container packaging with cryptographic provenance
+* **WordPress Integration** - 23 adapter functions + MU-plugin
 * **Type Safety** - Full `strict_types` enforcement throughout
 * **Modern PHP** - Requires PHP 8.1+ for latest security features
 * **Zero Dependencies** - Core library has no external dependencies