Bulk market scripts call create-market with a missing category argument

[Mosas2000]

Several mainnet utility scripts still call market-core.create-market with only three arguments, but the contract now requires question, end-date, resolution-date, and category.

Affected scripts:

• scripts/bulk-create-markets.ts
• scripts/market-lifecycle.ts
• scripts/stress-test.ts
• scripts/interact-contract.ts

Evidence:

• contracts/market-core.clar defines create-market as (question, end-date, resolution-date, category).
• Each of the scripts above still passes only three arguments.

Impact:

• The transaction call will fail at broadcast time or contract execution time.
• Bulk market creation and lifecycle/stress scripts cannot create markets successfully against the current contract ABI.

Reproduction:

1. Run one of the scripts that creates a market, e.g. npm run bulk-markets or npm run interact.
2. Inspect the constructed contract call.
3. The call omits the required category Clarity argument.

Priority: High

Suggested scope:
Update every create-market caller to include the category value expected by the contract, and add coverage so this does not regress.