fix(quick-switcher): use queryHistoryManager after queryHistoryStorage was removed from AppServices

[datlechin]

Summary

Second hotfix for PR #1176. Removing queryHistoryStorage from AppServices and migrating its callers caught the MCP tool sites and HistoryDataProvider, but missed QuickSwitcherViewModel.loadItems which still read services.queryHistoryStorage.fetchHistory(...).

Compiler error:

QuickSwitcherViewModel.swift:113:45 Value of type 'AppServices' has no member 'queryHistoryStorage'

One-line migration: services.queryHistoryStorage.fetchHistory(...) -> services.queryHistoryManager.fetchHistory(...). Manager's signature now accepts the same parameters Storage did (extended in PR #1178), so the call site is unchanged otherwise.

Test plan

• Build succeeds.
• Quick switcher (Cmd+K or whatever the binding is) lists recent query history alongside tables/views/databases.
• swiftlint --strict clean.