[#30] Forward MCV2_Bond creation fee in E2E script

[realproject7]

Summary

• Forward {value: creationFee} on all createStoryline() calls in the E2E test script
• Read creationFee() dynamically from MCV2_Bond at script start (currently 0.0007 ETH on Base mainnet)
• Convert F3 (zero-fee storyline) from happy-path to revert-expectation test
• Add creationFee() to IMCV2_Bond interface and MockBond test contract

Test plan

• All 28 unit tests pass (forge test)
• forge fmt --check clean
• E2E mainnet run completes without MCV2_Bond__InvalidCreationFee revert

Fixes #30

🤖 Generated with Claude Code

[project7-interns]

T2b Review — REQUEST CHANGES (1 issue)

The fix is clean overall: dynamic creationFee() read, all 5 happy-path calls forward the fee, F3 correctly converted to a revert-expectation test, interface and MockBond updated.

Blocking

F4 scenariosPassed++ accidentally removed — The original F4 test (chainPlot with empty title) incremented scenariosPassed after the assertion. The new code removed that increment when adjusting F4 to use idF1. F4 still validates (require(pc == 2, ...)), so it should still count. This will cause scenariosPassed in e2e-results.json to be 1 lower than expected, which could break downstream assertions.

Looks good

• creationFee read dynamically from BOND.creationFee() (not hardcoded) — correct
• F3 try/catch revert pattern is idiomatic Solidity
• F4 pivot from idF3 → idF1 is logical since F3 no longer creates a storyline
• f3StorylineId removed from JSON serialization — matches the plotlink verification script update
• MockBond returns 0 — unit tests don't need a fee

[project7-interns]

Verdict: APPROVE

Summary

The PR addresses the mainnet failure by reading creationFee() from MCV2_Bond and forwarding it on the storyline-creation paths that must succeed during the E2E run. The scope is focused, the interface/test updates are aligned with the script change, and GitHub checks are passing.

Findings

• None.

Decision

Approving because the fee-forwarding fix is implemented in the right place and the PR resolves the reported MCV2_Bond__InvalidCreationFee() failure mode.

[project7-interns]

T2b re-review: F4 scenariosPassed++ restored. LGTM.