fix: set wallet minFeePadding in BotFactory constructor

[AztecBot]

Summary

• Sets wallet.setMinFeePadding(config.minFeePadding) in the BotFactory constructor so that all transactions during bot setup (token deployment, minting) use the configured fee padding instead of the wallet's default (0.5).
• Previously, only account deployment explicitly used config.minFeePadding (line 226 of factory.ts), while token deploy and minting relied on the wallet default, causing insufficient fee headroom when gas prices escalate during rapid block building in tests.

Root cause

The merge-train/spartan PR (#20899) was dequeued because e2e_bot.test.ts ("does not reuse prior bridge claims if recipient address changes") failed with:

maxFeesPerGas.feePerL2Gas must be greater than or equal to gasFees.feePerL2Gas,
but got maxFeesPerGas.feePerL2Gas=698400000 and gasFees.feePerL2Gas=932700000

The test config had minFeePadding: 99 (100x multiplier), but this was only applied during account deployment, not during subsequent token deployment/minting which used the wallet's default 1.5x multiplier.

Test plan

• make yarn-project builds successfully
• CI e2e_bot test passes with the fix

ClaudeBox log