OpenAPI drift: 21 gaps between live spec and library

[github-actions]

The live ClickHouse Cloud OpenAPI spec has operations or schemas that the
Rust library (client.rs / models.rs) does not cover yet.

• Live spec: https://api.clickhouse.cloud/v1
• Client: crates/clickhouse-cloud-api/src/client.rs
• Models: crates/clickhouse-cloud-api/src/models.rs
• Beta metadata: crates/clickhouse-cloud-api/src/meta.rs

Summary

Change	Count
Missing client methods	0
Extra client methods (not in spec)	0
Missing model types	0
Missing struct fields	21
Extra struct fields (not in spec)	0
Field optionality mismatches	0
Beta status changes	0
Deprecated output field changes	0
Stale snapshot changes	0

Missing Struct Fields

These properties exist in the OpenAPI spec but have no corresponding
field in the Rust struct. API response data for these fields is silently
dropped during deserialization.

Schema	Field
ClickPipeObjectStorageSource	skipInitialLoad
ClickPipeObjectStorageSource	startAfter
ClickPipePatchObjectStorageSource	skipInitialLoad
ClickPipePatchObjectStorageSource	startAfter
ClickPipePostObjectStorageSource	skipInitialLoad
ClickPipePostObjectStorageSource	startAfter
PgConfig	autovacuum_analyze_scale_factor
PgConfig	autovacuum_max_workers
PgConfig	autovacuum_naptime
PgConfig	autovacuum_vacuum_cost_delay
PgConfig	autovacuum_vacuum_cost_limit
PgConfig	autovacuum_vacuum_insert_scale_factor
PgConfig	autovacuum_vacuum_scale_factor
PgConfig	autovacuum_work_mem
ScalingScheduleEntry	numReplicas
ScalingScheduleEntry	replicaMemoryGb
ScalingScheduleEntryRequest	numReplicas
ScalingScheduleEntryRequest	replicaMemoryGb
ServicePostRequest	maxReplicas
ServicePostRequest	minReplicas
ServicePostRequest	replicaMemoryGb

Implementation Guide

1. Update the checked-in spec:

   curl -s https://api.clickhouse.cloud/v1 -o crates/clickhouse-cloud-api/clickhouse_cloud_openapi.json

2. Add missing types to crates/clickhouse-cloud-api/src/models.rs
   • Use #[serde(rename_all = "camelCase")] on structs
   • Use #[serde(skip_serializing_if = "Option::is_none")] for optional fields
   • Enums should derive Default and include an #[serde(other)] Unknown variant
3. Add missing methods to crates/clickhouse-cloud-api/src/client.rs
4. Fix any field optionality mismatches by hand-editing models.rs
   (flip T ↔ Option<T> and the matching skip_serializing_if attribute).
5. Verify: cargo test -p clickhouse-cloud-api