perf(lib): optimize subscription status lookup to O(n)

[ishaanxgupta]

Summary

Optimizes the getSubscriptionStatus utility function in packages/lib/queries.ts by converting a quadratic $O(n^2)$ lookup into a linear $O(n)$ map lookup.

Previously, the function iterated over PLAN_TIERS and inside that loop, it called products.find((p) => p.id === tier). This caused redundant full-array scans on the products array for every tier check.

Changes

• Created a productMap using new Map(products.map((p) => [p.id, p])) before iterating over PLAN_TIERS.
• Replaced the inner products.find(...) with productMap.get(tier).

Impact

• CPU Performance: Transforms the algorithmic complexity from $O(n \times m)$ to $O(n + m)$, eliminating redundant array scans during subscription verification checks. This makes subscription status checks slightly faster, especially on pages or operations checking permissions against multiple tiers.