fix: add error for all flag with offline, update docs for TerminationAddress

x/farming/client/cli/tx.go

@@ -308,6 +308,13 @@ $ %s tx %s harvest --all --from mykey
 				if !all {
 					return fmt.Errorf("either staking-coin-denoms or --all flag must be specified")
 				}
+
+				// The transaction cannot be generated offline with --all flag since it
+				// requires a query to get all the staking denoms.
+				if clientCtx.Offline {
+					return fmt.Errorf("cannot generate tx in offline mode with --all flag")
+				}
+
 				queryClient := types.NewQueryClient(clientCtx)
 				resp, err := queryClient.Stakings(cmd.Context(), &types.QueryStakingsRequest{
 					Farmer: farmer.String(),

x/farming/spec/01_concepts.md

@@ -21,7 +21,7 @@ A public farming plan can be created only through governance proposal.
 
 A private farming plan can be created with any account. 
 
-- The account address of the plan creator account is used as the `TerminationAddress`. 
+- The address of the plan creator account is used as the `TerminationAddress`. When the plan ends after its end time, the balance of the farming pool address is transferred to the termination address.
 - To prevent spamming attacks, the `PlanCreationFee` fee must be paid on plan creation. 
 - Internally, the private plan's farming pool address is derived from the following derivation rule of `address.Module(ModuleName, []byte("PrivatePlan|{planId}|{planName}"))` and it is assigned to the plan. 
 - After creation, need to query the plan and send the amount of coins to the farming pool address so that the plan distributes as intended.