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/character.md

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+# Character
+
+**Status:** provisional  
+**See also:** RQ7, H8
+
+## Working definition
+
+**Character** is a relatively persistent structure of dispositions from which
+context-dependent behavior emerges.
+
+Distinct from:
+
+- **state** (fast-changing conditions),
+- **behavior** (contextual expression),
+- **role** / **persona** (situated projection),
+- **identity** (sameness of the Being over time).
+
+## Notes for research
+
+Artificial character should produce recognizable patterns across novel situations,
+not merely imitate vocabulary or mannerisms.