deployment: extract core common config

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[nimrod-starkware]

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• deployment: make gcpPodMonitoring enable configurable #14240
• deployment: fix storage reader port #14229
• deployment: add service ports to hybrid common service overlays #14215
• deployment: extract common env to hybrid/common/common.yaml #14249
• deployment: extract core common config #14248 👈 (View in Graphite)
• deployment: extract mempool common config #14247
• deployment: extract gateway common config #14246
• deployment: extract l1 common config #14245
• deployment: extract committer common config #14244
• deployment: extract sierra-compiler common config #14243
• deployment: support include directive in common yaml loader #14242
• deployment: add gcp pod monitoring to hybrid environment overlays #14192 : 1 other dependent PR (#14196 )
• deployment: add liveness probe to hybrid environment overlays #14191
• deployment: add readiness probe to hybrid environment overlays #14190
• deployment: add startup probe to hybrid environment overlays #14188
• deployment: add monitoring endpoint port to hybrid environment overlays #14187
• main-v0.14.3

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PR Summary

Low Risk
Config-only DRY refactor with no application code changes; deploy risk is limited to overlay merge/include behavior if misconfigured.

Overview
Introduces configs/overlays/hybrid/common/services/core.yaml and points mainnet, sepolia-alpha, and sepolia-integration core.yaml overlays at it via include, so shared hybrid core sequencer settings live in one place.

Each environment file now only overrides what differs—batcher concurrency/workers, partial-block hash anchors, min_l2_gas_price_per_height, default committee, and state-sync/network flags—instead of repeating the full shared block (component URLs/ports, consensus timeouts, bouncer caps, class manager limits, etc.). configList is defined once in the common file and dropped from the per-env copies.

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