Add Strain Hospice for graceful low-win strain retirement.

Archive failed epidemiology strains to museum hospice with SQLite persistence, operator/AI/court triggers, breeding and graft guards, topology museum nodes, and Seer plus oath ledger accountability.

server/internal/ai/commands.go

@@ -21,6 +21,7 @@ const (
 	CmdSpreadGraft      = "spread_graft"
 	CmdPersonaTweak     = "persona_tweak"
 	CmdEnableErasure    = "enable_erasure"
+	CmdStrainHospice    = "strain_hospice"
 	CmdNoop             = "noop"
 )
 
@@ -38,6 +39,7 @@ var knownCommands = map[string]bool{
 	CmdSpreadGraft:     true,
 	CmdPersonaTweak:    true,
 	CmdEnableErasure:   true,
+	CmdStrainHospice:   true,
 	CmdNoop:            true,
 }