(spec) Update shared template architecture docs

Author: MRiabov

_bmad-output/planning-artifacts/architecture.md

@@ -0,0 +1,38 @@
+---
+stepsCompleted:
+  - 1
+inputDocuments:
+  - specs/desired_architecture.md
+  - specs/architecture/primary-system-objectives.md
+  - specs/architecture/agents/overview.md
+  - specs/architecture/agents/roles.md
+  - specs/architecture/agents/handover-contracts.md
+  - specs/architecture/agents/artifacts-and-filesystem.md
+  - specs/architecture/agents/tools.md
+  - specs/architecture/distributed-execution.md
+  - specs/architecture/CAD-and-other-infra.md
+  - specs/architecture/evals-and-gates.md
+  - specs/architecture/simulation-and-dod.md
+  - specs/architecture/observability.md
+  - specs/architecture/fluids-and-deformables.md
+  - specs/architecture/electronics-and-electromechanics.md
+  - specs/architecture/workbenches.md
+  - specs/business-usecase.md
+  - specs/dataset-generation.md
+  - specs/frontend-specs.md
+  - specs/integration-tests.md
+  - specs/todos.md
+  - _bmad-output/planning-artifacts/prd.md
+  - _bmad-output/project-context.md
+  - docs/index.md
+  - docs/architecture.md
+  - docs/project-overview.md
+workflowType: 'architecture'
+project_name: 'Problemologist-AI'
+user_name: 'Max'
+date: '2026-03-21'
+---
+
+# Architecture Decision Document
+
+_This document builds collaboratively through step-by-step discovery. Sections are appended as we work through each architectural decision together._