fix: bench-template preserve tokens + 7 RPC benches + CI fixes

[Flotapponnier]

Summary

• 7 new RPC bench pages (kava, zora, abstract, apechain, lisk, swellchain, cyber)
• kava-rpc: added publicnode + ankr as 4th/5th providers
• bench-template: preserve {{placeholder}} tokens when no live data (instead of returning empty string)
• CI: fix lint errors (set-state-in-effect, no-explicit-any) and prod-deploy CRON_SECRET env exposure

Test plan

• bench-template tests pass (3 previously failing assertions now green)
• CI lint clean
• 7 RPC bench pages live on prod after deploy