deployment: wait for node healthcheck before starting the simulator

[sirandreww-starkware]

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[sirandreww-starkware]

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• deployment: wait for node healthcheck before starting the simulator #14225 👈 (View in Graphite)
• deployment: add N_NODES flag to run multiple nodes in local monitoring stack #14224
• deployment: support real Pragma oracle in local monitoring stack #14223
• apollo_consensus_orchestrator: pin SNIP-35 fee_target to override_l2_gas_price_fri when set #14230
• apollo_consensus_orchestrator,apollo_dashboard: add USD fee target panel and unit suffixes #14228
• apollo_consensus_orchestrator: make SNIP-35 fee target a dynamic config #14220
• main-v0.14.3

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PR Summary

Low Risk
Local docker-compose orchestration only; no runtime application or security logic changes.

Overview
The local monitoring docker-compose stack now treats sequencer nodes as healthy only after port 8081 accepts TCP, using a bash /dev/tcp probe (no curl in the image).

sequencer_simulator no longer starts as soon as sequencer-node-0 is merely up; it waits for service_healthy, avoiding races where the simulator hits the HTTP gateway before it is listening.

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