deployment: drop redundant YAML sequencerConfig; source port-uniqueness from jsonnet

[nimrod-starkware]

The cdk8s ConfigMap is built solely from the jsonnet override layers (build_native_config); the YAML config.sequencerConfig blocks are now redundant duplicate data. Delete them from every public hybrid overlay YAML (the env-specific values — chain_id, recorder_url, cache_size, fee tokens, ports — all live in the sequencer_config.jsonnet layers). Delete the lockstep parity tests that compared jsonnet to YAML (their YAML side is gone) and migrate test_port_uniqueness's within-service and cross-service component-port checks to read the built native config instead of YAML sequencerConfig, filtering port==0 (disabled components) and gaining coverage of the storage-reader/subsystem ports the YAML never enumerated. The schema.py sequencerConfig field and merger.py merge branch are deliberately kept: StrictBaseModel uses extra=forbid, so the loader must still accept devops-repo overlays that carry sequencerConfig until that out-of-repo cleanup lands.

Co-Authored-By: Claude Opus 4.8 (1M context) noreply@anthropic.com

[reviewable-StarkWare]

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[nimrod-starkware]

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• deployment: move all jsonnet files together #14806
• deployment,scripts: remove dead configList config key #14804
• apollo_reverts: make RevertConfig a newtype wrapping Option<BlockNumber> #14701
• apollo_deployments: delete Rust component-config topology mirror #14688
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• deployment: drop redundant YAML sequencerConfig; source port-uniqueness from jsonnet #14659 👈 (View in Graphite)
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