Make reward duration configurable in RequestMint script

[rsolari]

Summary

Replace hardcoded 30-day reward duration with optional REWARD_DURATION_DAYS environment variable. The script defaults to the contract's REWARD_DURATION value when the env var is not set, maintaining backward compatibility while allowing configuration.

Changes

• Added REWARD_DURATION_DAYS env variable support to RequestMint.ts
• Updated .env.template with documentation for the new configuration option
• Added output logging to show whether the duration comes from env or contract

Test plan

• Run script without REWARD_DURATION_DAYS set to verify it uses contract value
• Run script with REWARD_DURATION_DAYS set to verify it uses the override value

🤖 Generated with Claude Code

[github-actions]

Coverage after merging rsolari/configurable-reward-duration into main will be

73.33%

Coverage Report

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
src
ZkStaker.sol	68.42%	100%	50%	73.33%	79, 85, 90, 95