docs(orchestrator): harden wallet setup with delegated reward calling

[rickstaa]

Updates Activate on Arbitrum so the recommended setup is the secure one: a hardware wallet or Safe as the orchestrator wallet, a throwaway node wallet with -ethOrchAddr, and a LIP-118 reward caller (go-livepeer, standalone, or the shared livepeer.bot caller). Adds -ethOrchAddr, -cliAddr, and -enableCliTxRoutes to the CLI flags reference. Also fixes a README autolink that made mint broken-links fail.

Do not merge before livepeer/go-livepeer#4011. The go-livepeer reward caller tab and the -ethOrchAddr reward delegation it describes depend on that PR.

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Project	Status	Preview	Updated
livepeer	🟢 Ready	View Preview	Sep 7, 2026, 9:35 AM

[Strykar]

cast does not check EIP-55, so the setRewardCaller recipe accepts a one-character typo that the node path now rejects (cast calldata "setRewardCaller(address)" 0x16a72bdb3017196825bC53809b87F96fbEE31F6C encodes fine). Worth a read-back right after the send, since step 8 only confirms ~22h later:

cast call 0x35Bcf3c30594191d53231E4FF333E8A770453e40 \
  "transcoderToRewardCaller(address)(address)" <ORCHESTRATOR_ADDR> --rpc-url <ARBITRUM_RPC_URL>

Step 5 tells cold-wallet users to call transcoder on the BondingManager but gives no argument format. It is transcoder(uint256 _rewardCut, uint256 _feeShare), both over PERC_DIVISOR = 1000000, and the second argument is fee share (delegators' portion), the inverse of the table's Fee Cut. Copying 10 and 95 from the table literally sets rewardCut 0.001% and feeShare 0.0095%. Either give the converted values (Reward Cut 10% is 100000; Fee Cut 95% is _feeShare 50000) or point that step at the Explorer.

[rickstaa]

cast does not check EIP-55, so the setRewardCaller recipe accepts a one-character typo that the node path now rejects (cast calldata "setRewardCaller(address)" 0x16a72bdb3017196825bC53809b87F96fbEE31F6C encodes fine). Worth a read-back right after the send, since step 8 only confirms ~22h later:

cast call 0x35Bcf3c30594191d53231E4FF333E8A770453e40 \
  "transcoderToRewardCaller(address)(address)" <ORCHESTRATOR_ADDR> --rpc-url <ARBITRUM_RPC_URL>

Step 5 tells cold-wallet users to call transcoder on the BondingManager but gives no argument format. It is transcoder(uint256 _rewardCut, uint256 _feeShare), both over PERC_DIVISOR = 1000000, and the second argument is fee share (delegators' portion), the inverse of the table's Fee Cut. Copying 10 and 95 from the table literally sets rewardCut 0.001% and feeShare 0.0095%. Either give the converted values (Reward Cut 10% is 100000; Fee Cut 95% is _feeShare 50000) or point that step at the Explorer.

Makes sense, updated.

[adamsoffer]

LGTM. One nit Claude Fable 5.1 caught is that the cast recipes assume a keystore, so they don't work as written for the hardware wallet or Safe the guide recommends.