fix(cli): add deposit-margin-factor to lotus miner init command

CHANGELOG.md

@@ -16,14 +16,15 @@
 - chore: update benchmark tests to use testing.B.Loop for improved performance ([filecoin-project/lotus#13385](https://github.com/filecoin-project/lotus/pull/13385)) ([filecoin-project/lotus#13396](https://github.com/filecoin-project/lotus/pull/13396))
 - fix(eth): properly return vm error in all gas estimation methods ([filecoin-project/lotus#13389](https://github.com/filecoin-project/lotus/pull/13389))
 - chore: all actor cmd support --actor ([filecoin-project/lotus#13391](https://github.com/filecoin-project/lotus/pull/13391))
+- feat(spcli): add a `deposit-margin-factor` option to `lotus-miner init` so the sent deposit still covers the on-chain requirement if it rises between lookup and execution
 
 # Node and Miner v1.34.1 / 2025-09-15
 
 This is a non-critical patch release that fixes an issue with the Lotus `v1.34.0` release where the incorrect version of filecoin-ffi was included.  Lotus `v1.34.0` used filecoin-ffi `v1.34.0-dev` when it should have used `v1.34.0`.  This isn’t critical since it’s the same filecoin-ffi version used during the nv27 Calibration network upgrade, but for consistency with other Node implementations like Forest, we are creating this release.  This ensures the inclusion of ref-fvm `v4.7.3` update that was missing in v1.34.0.  All users of v1.34.0 are encouraged to upgrade to v1.34.1.
 
 # Node and Miner v1.34.0 / 2025-09-11
 
-This is a **MANDATORY Lotus v1.34.0 release**, which will deliver the Filecoin network version 27, codenamed “Golden Week” 🏮. This release candidate sets the upgrade epoch for the Mainnet network to **Epoch 5348280:  2025-09-24T23:00:00Z**.  (See the [local time for other timezones](https://www.worldtimebuddy.com/?qm=1&lid=100,5128581,5368361,1816670&h=100&date=2025-9-24&sln=23-24&hf=1&c=1196).)  
+This is a **MANDATORY Lotus v1.34.0 release**, which will deliver the Filecoin network version 27, codenamed “Golden Week” 🏮. This release candidate sets the upgrade epoch for the Mainnet network to **Epoch 5348280:  2025-09-24T23:00:00Z**.  (See the [local time for other timezones](https://www.worldtimebuddy.com/?qm=1&lid=100,5128581,5368361,1816670&h=100&date=2025-9-24&sln=23-24&hf=1&c=1196).)
 
 ## ☢️ Upgrade Warnings ☢️
 - All Lotus node and Storage Provider (SP) operators must upgrade to v1.34.x before the specified date for the Mainnet network.

cli/miner/init.go

@@ -126,6 +126,11 @@ var initCmd = &cli.Command{
 			Usage: "number of block confirmations to wait for",
 			Value: buildconstants.MessageConfidence,
 		},
+		&cli.Float64Flag{
+			Name:  "deposit-margin-factor",
+			Usage: "Multiplier (>=1.0) to scale the suggested deposit for on-chain variance (e.g. 1.01 adds 1%)",
+			Value: 1.01,
+		},
 	},
 	Subcommands: []*cli.Command{
 		restoreCmd,
@@ -739,16 +744,22 @@ func createStorageMiner(ctx context.Context, api v1api.FullNode, ssize abi.Secto
 		return address.Undef, err
 	}
 
-	// Calculate miner creation deposit according to FIP-0077
+	depositMarginFactor := cctx.Float64("deposit-margin-factor")
+	if depositMarginFactor < 1 {
+		return address.Undef, xerrors.Errorf("deposit margin factor must be greater than or equal to 1")
+	}
+
 	deposit, err := api.StateMinerCreationDeposit(ctx, types.EmptyTSK)
 	if err != nil {
 		return address.Undef, xerrors.Errorf("getting miner creation deposit: %w", err)
 	}
 
+	scaledDeposit := types.BigDiv(types.BigMul(deposit, types.NewInt(uint64(depositMarginFactor*100))), types.NewInt(100))
+
 	createStorageMinerMsg := &types.Message{
 		To:    power.Address,
 		From:  sender,
-		Value: deposit,
+		Value: scaledDeposit,
 
 		Method: power.Methods.CreateMiner,
 		Params: params,