Add molecular data counts endpoint for multiple profiles - Fixes #11761#11856

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immortal71 wants to merge 9 commits intocBioPortal:masterfrom

immortal71:issue-11761-molecular-data-counts-endpoint

Commits on Dec 5, 2025

Optimized multi-profile molecular data by fetching all genes in a single query to reduce N+1 queries (ClickHouse perf)
immortal71
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Added ClickHouse molecular data mapper, model and clickhouse repository that aggregates per-sample rows into gene-profile values
immortal71
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Commits on Dec 11, 2025