feat(planner): --planner saved for SQL (multigroup e2e tables) #856

Goal

Let asap-planner --planner saved --query-language sql turn a sketch-bench plan for the multigroup/all tables into streaming_config.yaml and inference_config.yaml, as #828 does for PromQL.

The multi-grouping templates (11–17) have no PromQL form. sketch-bench#209 gives them structured e2e entries ({table, value, capability, grouping, quantile, window_secs, interval_secs, rqes}) and records metrics.

Scope

• Accept Add CI for building and pushing packages to ghcr #209's structured entries and records metrics in the e2e block. Use only the entries of the selected --query-language.
• Build a SQLControllerConfig: each records metric becomes a table (labels → metadata_columns, values → value_columns, time column ts), and each entry becomes a SQL query in ASAPQuery's dialect.
• A query may read several RQEs (Add CI for building and pushing packages to ghcr #209 merges templates 14, 15 and 17). All of its picks must land on one deployment.

Depends on

• feat(planner): asap-planner --planner saved writes a sketch-bench eval plan without re-solving #828 (--planner saved)
• sketch-bench#209, for the real tables
• feat(planner): MILP roll-ups for KLL, DDSketch and HLL #851: multigroup plans are roll-up plans, which saved mode refuses until it lands

The engine matches SQL query configs structurally, so the queries don't need to be #844's text.