docs(adr): rename ADR-012 — drop Lazar; update title + content + cross-refs

- Rename docs/decisions/adr-012-lazar-conformance.md → adr-012-feature-conventions.md
- Strip "Lazar", "Plan 8/9/10/11", "refactor-logs" refs from all ADRs,
  architecture docs, HTML explainers, and feature/core AGENTS.md files
- Update all incoming links in docs/, packages/*/AGENTS.md, HTML explainers

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

docs/decisions/adr-002-di-framework.md

@@ -15,7 +15,7 @@ InversifyJS with symbol-based resolution + targeted agent documentation.
 - Scales to 20+ services with automatic dependency chain resolution
 - Built-in singleton/transient/request scopes
 - Middleware support for logging/tracing (Sentry integration)
-- Matches the reference implementation by Lazar Nikolov
+- Matches the Clean Architecture reference implementation
 - Agent readability gap (4/10 → 7/10) mitigated by resolution tables and step-by-step recipes in di/AGENTS.md
 - Familiar to developers from Java/C# backgrounds