Establish Soul Frame research repository and workplans

Scaffold the research layout from the research program, add INTENT/SCOPE,
research instruments, concept stubs, and SOUL-WP-0001–0008 phase workplans.
Register the repo with State Hub under domain agents for hub-synced execution.

concepts/soul.md

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+# Soul
+
+**Status:** provisional / under review  
+**Working gloss:** Soul = Relation
+
+## Working definition
+
+The **Soul** is the evolving relational boundary through which a Being develops
+identity, relationships, history, commitments, provenance, reputation, and
+persistent influence in its environment.
+
+It is not identical with the environment; it is the coupling boundary and the
+persistent consequences of interactions across that boundary.
+
+## Notes for research
+
+- Informational, not metaphysical, reading of persistence/"eternity".
+- A Being may cease operating while influence continues (legacy).
+- High terminology collision risk; retention requires explanatory payoff.
+
+## Structural ambiguity to resolve
+
+Does Soul name:
+
+1. the boundary itself,
+2. the relational structures crossing the boundary,
+3. the accumulated consequences of those interactions,
+4. or a carefully defined combination?