apollo_deployments: check applicative config matches deployed app_configs

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• apollo_deployments: check applicative config matches deployed app_configs #14489 : 3 dependent PRs (#14480 , #14505 , #14606 ) 👈 (View in Graphite)
• apollo_deployments: assemble and deserialize node config from jsonnet #14487
• apollo_deployments: assemble full node config via build.libsonnet #14486
• apollo_deployments: distributed layout jsonnet test #14485
• apollo_deployments: consolidated layout jsonnet test #14484
• apollo_deployments: test hybrid layout for infra config #14483
• apollo_deployments: introduce hybrid layout for infra config #14482
• apollo_deployments: introduce jsonnet building blocks for infra config #14481
• apollo_deployments: jsonnet applicative config #14479
• main

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PR Summary

Low Risk
Test and deployment-config parity only; no runtime behavior changes beyond aligning one numeric literal with integer JSON.

Overview
Adds a CI test that the consolidated jsonnet build’s applicative defaults stay aligned with the committed app_configs/*.json layer (non-overridable deployment values).

The check evaluates build('consolidated', testing overrides), round-trips through SequencerNodeConfig and config_to_preset, merges all base app_configs JSON (skipping replacer_*), and compares keys while excluding overridable keys (KEYS_TO_BE_REPLACED), secrets, config pointers, and components.*. Supporting pieces: test_applicative_matches_app_configs in jsonnet.rs, is_path_prefix for dotted-key subtree matching, and BASE_APP_CONFIGS_DIR_PATH made pub(crate) for the merger.

l1_events_scraper_config.l1_block_time_seconds is normalized from 12.0 to 12 in jsonnet and the matching app config JSON so values match integer serialization from the config dump.

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