Update cognitive-squad catalog entry — Triadic Model, full lifecycle (#1884)

Updated description to version-independent wording:
"Multi-agent cognitive system with Triadic Model: understanding,
internalization, application — with quality gates, backpropagation
verification, and self-healing"

Changes:
- description: version-independent (no counts)
- provides.commands: 7 → 10
- tags: pre-code,analysis → full-lifecycle,verification
- updated_at: bumped to 2026-03-18

Co-authored-by: Ladislav Bihari <ladislav.bihari@statsperform.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

extensions/README.md

@@ -75,7 +75,7 @@ The following community-contributed extensions are available in [`catalog.commun
 | Archive Extension | Archive merged features into main project memory. | [spec-kit-archive](https://github.com/stn1slv/spec-kit-archive) |
 | Azure DevOps Integration | Sync user stories and tasks to Azure DevOps work items using OAuth authentication | [spec-kit-azure-devops](https://github.com/pragya247/spec-kit-azure-devops) |
 | Cleanup Extension | Post-implementation quality gate that reviews changes, fixes small issues (scout rule), creates tasks for medium issues, and generates analysis for large issues | [spec-kit-cleanup](https://github.com/dsrednicki/spec-kit-cleanup) |
-| Cognitive Squad | 19-function cognitive agent squad for autonomous pre-code analysis — 7 core agents, 7 specialists, 4 learning functions with feedback loop | [cognitive-squad](https://github.com/Testimonial/cognitive-squad) |
+| Cognitive Squad | Multi-agent cognitive system with Triadic Model: understanding, internalization, application — with quality gates, backpropagation verification, and self-healing | [cognitive-squad](https://github.com/Testimonial/cognitive-squad) |
 | DocGuard — CDD Enforcement | Canonical-Driven Development enforcement. Validates, scores, and traces project documentation with automated checks, AI-driven workflows, and spec-kit hooks. Zero NPM runtime dependencies. | [spec-kit-docguard](https://github.com/raccioly/docguard) |
 | Fleet Orchestrator | Orchestrate a full feature lifecycle with human-in-the-loop gates across all SpecKit phases | [spec-kit-fleet](https://github.com/sharathsatish/spec-kit-fleet) |
 | Iterate | Iterate on spec documents with a two-phase define-and-apply workflow — refine specs mid-implementation and go straight back to building | [spec-kit-iterate](https://github.com/imviancagrace/spec-kit-iterate) |