State-hub connect and initial workplans

.claude/rules/repo-boundary.md

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+# Repo Boundary
+
+Keep `markitect-tool` focused on provider-neutral markdown primitives:
+parse, validate, transform, compose, query, template, generate, configure,
+cache, and expose through CLI/API.
+
+Leave infospace lifecycle, persistence/orchestration, project-specific
+knowledge models, rendering applications, and service infrastructure to
+higher-layer repositories.