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/ghost.md

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+# Ghost (`Gh.`)
+
+**Status:** provisional  
+**See also:** H10, RQ8, TE-07
+
+## Working definition
+
+A **Ghost** is an artificial representation derived from a particular real person
+whose informational identity remains subject to legitimate personal or successor
+authority.
+
+Designation suffix: **`Gh.`**
+
+## Principal distinction from Spirit
+
+| | Spirit (`Sp.`) | Ghost (`Gh.`) |
+|---|---|---|
+| Source | Public reflection | Identity under legitimate authority |
+| Private data | Generally not | May include private/relational material |
+| Governance | Provenance and fidelity | Governance is part of identity |
+
+Technical fidelity alone does **not** constitute legitimate `Gh.` status.
+
+## Governance elements (candidates)
+
+principal, custodian, provenance, consent, disclosure rules, succession, revocation,
+representation constraints, commercial permissions.