Update documentation for bd mol pour/wisp command structure

Updated all documentation and help text to reflect:
- bd pour → bd mol pour
- bd ephemeral → bd mol wisp
- bd ephemeral list → bd mol wisp list
- bd ephemeral gc → bd mol wisp gc

Files updated:
- docs/MOLECULES.md
- docs/CLI_REFERENCE.md
- docs/ARCHITECTURE.md
- docs/DELETIONS.md
- skills/beads/references/MOLECULES.md
- cmd/bd/mol_catalog.go
- cmd/bd/mol_current.go
- cmd/bd/mol_distill.go
- cmd/bd/cook.go

cmd/bd/cook.go

@@ -353,7 +353,7 @@ func runCook(cmd *cobra.Command, args []string) {
 	if len(bondPoints) > 0 {
 		fmt.Printf("  Bond points: %s\n", strings.Join(bondPoints, ", "))
 	}
-	fmt.Printf("\nTo use: bd pour %s --var <name>=<value>\n", result.ProtoID)
+	fmt.Printf("\nTo use: bd mol pour %s --var <name>=<value>\n", result.ProtoID)
 }
 
 // cookFormulaResult holds the result of cooking