refactor(backend): improve block page performance by reusing Sieve connections#1604

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Shadow243 wants to merge 9 commits intocypht-org:masterfrom

Shadow243:refactor-block-list

Commits on Sep 7, 2025

fix(backend): refactor sieve cache class and separate it from connection
Shadow243
committed
fix(backend): refactor sieve filter module to use SieveService
Shadow243
committed

Commits on Sep 12, 2025

fix(backend): simplify initialization and resolve related issues
Shadow243
committed

Commits on Sep 13, 2025

test(backend): add unit tests for SieveScriptCache and SieveConnectionManager
Shadow243
committed

Commits on Sep 25, 2025

fix(backend): update SieveService initialization to handle host and port parsing correctly
Shadow243
committed