chore(sqlx): trim stale offline query cache files

[nicolasburtey]

Summary

• replace macro-generated list_for(...) usage in ledger repos with explicit query methods for only the by(created_at) paths we actually call:
  • AccountSetRepo::list_for_name_by_created_at(_in_op)
  • EntryRepo::{list_for_account_id_by_created_at, list_for_journal_id_by_created_at, list_for_transaction_id_by_created_at}
  • TransactionRepo::list_for_tx_template_id_by_created_at(_in_op)
• remove list_for(...) annotations from those columns to avoid generating unused fallback filter/sort combinations
• regenerate SQLx offline metadata

Impact

• significantly reduces .sqlx cache surface in both cala-ledger/.sqlx and cala-server/.sqlx
• keeps existing service-layer behavior intact for the currently used listing APIs (all call *_by_created_at methods)

Validation

• cargo sqlx migrate run (cala-ledger)
• make sqlx-prepare
• SQLX_OFFLINE=true cargo check -p cala-ledger
• SQLX_OFFLINE=true cargo check -p cala-server

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Note

Medium Risk
Mostly a cache-surface reduction, but it changes the generated SQL and pagination ordering/cursors for some list queries (e.g., account sets by name now ordered by created_at), which could subtly affect result ordering or paging behavior.

Overview
Refactors repo listing APIs to stop relying on macro-generated list_for(...) query permutations and instead provide explicit, instrumented *_by_created_at methods for the only call paths in use (account sets by name, entries by account_id/journal_id/transaction_id, and transactions by tx_template_id, including *_in_op variants where needed).

As a result, regenerates SQLx offline metadata and deletes a large set of now-unused .sqlx/query-*.json cache files in both cala-ledger and cala-server, leaving only the narrowed query shapes (notably changing account-set pagination to be ordered/cursored by created_at rather than name).

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