catalog: bump tekimax-security to v0.2.6

v0.2.6 adds a grounded docs chat (Ask AI) at
speckit.tekimax.com/chat powered by Llama 3.3 70B on Cloudflare
Workers AI, plus a native Cloudflare Workers rate limiter on
the chat endpoint (20 req/60s per IP, no external services).

v0.2.5 (rolled into this version on the fork) added config
read-back for audit.sh and gate-check.sh so user entries in
tekimax-security-config.yml actually extend the built-in
secret patterns, inline-prompt patterns, and SDK allowlist
instead of being ignored.

Release: https://github.com/TEKIMAX/speckit-security/releases/tag/v0.2.6

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: kaman1

extensions/catalog.community.json

@@ -1,6 +1,6 @@
 {
   "schema_version": "1.0",
-  "updated_at": "2026-04-14T15:00:00Z",
+  "updated_at": "2026-04-14T17:00:00Z",
   "catalog_url": "https://raw.githubusercontent.com/github/spec-kit/main/extensions/catalog.community.json",
   "extensions": {
     "aide": {
@@ -1840,8 +1840,8 @@
       "id": "tekimax-security",
       "description": "Security-first extension for Spec Kit. Adds STRIDE threat modeling, AI guardrails, data contracts, model governance, red teaming, and six blocking security gates to the spec-driven development lifecycle.",
       "author": "TEKIMAX",
-      "version": "0.2.5",
-      "download_url": "https://github.com/TEKIMAX/speckit-security/archive/refs/tags/v0.2.5.zip",
+      "version": "0.2.6",
+      "download_url": "https://github.com/TEKIMAX/speckit-security/archive/refs/tags/v0.2.6.zip",
       "repository": "https://github.com/TEKIMAX/speckit-security",
       "homepage": "https://speckit.tekimax.com",
       "documentation": "https://speckit.tekimax.com/docs/",
@@ -1868,7 +1868,7 @@
       "downloads": 0,
       "stars": 0,
       "created_at": "2026-04-13T00:00:00Z",
-      "updated_at": "2026-04-14T00:00:00Z"
+      "updated_at": "2026-04-14T17:00:00Z"
     },
     "tinyspec": {
       "name": "TinySpec",