feat: add c5.4xlarge, r5.2xlarge, r5.4xlarge to ledger + saas-demo fi…

[omrdev1]

…xture

• Add three missing instance types to factors.json (power, embodied CO2e)
• Add pricing for all applicable regions including eu-north-1 r5 entries
• Add fixtures/tfplan.saas-demo.json — 10-instance realistic SaaS stack (web ×2, API ×3, DB ×2, workers ×2, cache ×1, all us-east-1)

Summary

Type of change

• Bug fix
• New instance type / region coverage
• New feature
• Documentation update
• Tooling / dependency update

Checklist

• npm test passes locally (all 50+ tests green)
• npx tsc --noEmit passes (zero type errors)
• npm run build produces no warnings
• node dist/index.cjs diff fixtures/tfplan.e2e.json --format table produces live output
• No credentials, tokens, API keys, or account IDs committed
• New instance/region entries include a test case with a math trace comment
• Commit messages follow Conventional Commits format

Testing

Related issues

[github-actions]

🌱 GreenOps Infrastructure Impact

Metric	Monthly Total
🔋 Scope 2 — Operational CO2e	4.74kg
🏭 Scope 3 — Embodied CO2e	1.88kg
🌍 Total Lifecycle CO2e	6.61kg
💧 Water Consumption	5.9L
💰 Infrastructure Cost	$132.86/month

Potential Scope 2 Savings: -4.33kg CO2e/month (91.3%) | -$8.03/month
💡 Found 1 optimization recommendation.

Resource Breakdown

Resource	Type	Region	Scope 2 CO2e	Scope 3 CO2e	Water	Cost/mo	Action
google_compute_instance.api	n2-standard-2	us-central1	4.57kg	1.04kg	4.9L	70.81	💡 View Recommendation
google_compute_instance.worker	t2a-standard-2	europe-north1	0.17kg	0.83kg	1.0L	62.05	✅ Optimal

Recommendations

google_compute_instance.api

• Current: n2-standard-2 in us-central1
• Suggested: n2-standard-2 in europe-north1
• Scope 2 Impact: -4.33kg CO2e/month | +$8.03/month
• Rationale: Moving n2-standard-2 from us-central1 to Finland (europe-north1) reduces grid carbon intensity from 340g to 18g CO2e/kWh, saving 4327g CO2e/month (note: cost increases by $8.03/month). Water consumption also decreases by 3.4L/month.

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Emissions calculated using the Open GreenOps Methodology Ledger v2.0.0. Scope 2 (operational) and Scope 3 (embodied) emissions tracked. Water consumption estimated from provider sustainability reports (AWS 2023, Microsoft 2023, Google 2023). Math is MIT-licensed and auditable. Analysed at 2026-04-05T16:52:51.899Z.

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