apollo_deployments: test overrides list match

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• deployment: build ConfigMap via generator behind opt-in flag #14531
• apollo_deployments: generator builds only the requested service #14530
• apollo_deployments: derive state_sync optional sync-clients from env presence #14529
• apollo_deployments: regression test hybrid evaluation #14509
• apollo_deployments: CLI tests using testing overrides #14508
• apollo_deployments: introduce new CLI #14507
• apollo_deployments: flat to nested json util #14506
• apollo_deployments: jsonnet generation module #14505
• apollo_deployments: check applicative config matches deployed app_configs #14489
• 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: test overrides list match #14480 👈 (View in Graphite)
• apollo_deployments: jsonnet applicative config #14479
• main

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PR Summary

Low Risk
Test-only change in deployment definitions; no runtime or deployment behavior is modified.

Overview
Adds a bidirectional drift test so Rust deployment replacer keys stay aligned with applicative_config.libsonnet override usage.

A helper scans the jsonnet for overrides.<path> references (skipping // comments). The new test keys_to_be_replaced_are_covered_by_override_schema checks that every KEYS_TO_BE_REPLACED entry has exactly one matching override prefix, and that every jsonnet override path maps to some replacer key—failing with actionable messages for uncovered, ambiguous, or stray override refs.

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