chore: Review Azure monthly spend for docs/blog SWAs (May 2026)

## Monthly Azure Spend Review — Dapr Docs & Blog SWAs

**Target date**: May 21, 2026 (one month after migration)

### What to check
1. Go to [Azure Cost Management](https://portal.azure.com/#view/Microsoft_Azure_CostManagement/Menu/~/costanalysis) for the active Dapr subscription
2. Filter by the resource groups used for docs, blog, and identities
3. Review cost breakdown by resource — identify which SWAs are most expensive and why

### Questions to answer
- [ ] What is the total monthly spend across all docs/blog/identity RGs?
- [ ] Which individual SWAs have the highest cost? (bandwidth, API calls, etc.)
- [ ] Are any Standard-tier SWAs underutilized and candidates for downgrade to Free?
- [ ] Is the managed identity incurring any unexpected cost?

### Current SKU policy (reference)
Only 3 SWAs are Standard (all others Free):
- Root docs site (docs.dapr.io) — always Standard
- Blog site (blog.dapr.io) — always Standard
- Latest explicit version SWA — Standard until next release, then downgrade

### Context
Resources were migrated on 2026-04-21. This is the first cost check after migration. See migration plan (private gist): https://gist.github.com/paulyuk/a4e92bf4477b7f040df5bae8aa045ecc