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/agent.md

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+# Agent
+
+**Status:** provisional  
+**See also:** H9, RQ8
+
+## Working definition
+
+An **Agent** is an artificial entity or component primarily derived from functional
+purpose.
+
+Defining question: **What should this entity be able to do?**
+
+Quality criteria tend toward competence, reliability, autonomy, scope discipline,
+adaptability, and outcomes.
+
+## Notes for research
+
+- An Agent may be merely a functional component of another artificial Being.
+- An Agent may itself become a Being if it develops persistent identity, continuity,
+  relationships, character, and recognition.
+- Preliminary view: Agent is a provenance/construction descriptor, not a mutually
+  exclusive ontological class.