data: add Twelve Data Early Stage Program

[infser]

Summary

Adds one new Entity, Twelve Data (entities/tw/twelve-data.yaml), with the vendor-run Early Stage Program: 20% off Twelve Data plans for 12 months.

Closes #689

Facts and sourcing

All facts are taken from the single first-party source cited in the record:

• https://twelvedata.com/startups (verified live 2026-09-07)

Published facts captured in structured fields:

• Benefit: "Early-stage startups get 20% off Twelve Data plans for 12 months." → kind: discount, percentage.basis_points: 2000, duration: P1Y
• Eligibility:
  • "Early stage: Up to $1M in funding and less than 2 years old" → company.funding_raised_usd lte 1,000,000 and company.age_months lt 24
  • "Single structure: Legal entity and same use as domain" → manual external-verification
  • "Small team: 10 employees or less" → company.employee_count lte 10
• Access: public application form linked as "Apply now" → https://twelvedata.com/account/perks/2

No invented dollar figures. Closed unmerged priors: #690, #745.

Checklist

• Data-only PR: exactly one new Entity YAML under entities/tw/
• Fresh ULIDs (ent_, prg_, off_) and opaque src_
• Category data-analytics; profile.summary present
• DCO sign-off present
• Entity absent from upstream/main; no competing open PRs