feat: Apply automation rules to bank-synced transactions (#112)
## Summary
- Adds backend automation rule evaluation for bank-synced transactions
using `jwadhams/json-logic-php` (same engine as the frontend
`json-logic-js`) for exact rule parity
- Synchronous `ApplyAutomationRules` listener on `TransactionCreated`
runs before `AssignTransactionToBudget`, auto-assigning categories and
labels via `saveQuietly()` / `syncWithoutDetaching()`
- Skips encrypted transactions and `action_note` (encrypted, can't
handle server-side)
## Test plan
- [x] 17 new Pest tests covering all JsonLogic operators, category/label
assignment, encrypted transaction skip, priority ordering,
case-insensitive matching, user scoping, bank_name matching, amount in
dollars, no `TransactionUpdated` event dispatch, compound rules, and
end-to-end listener integration
- [x] Existing `TransactionSyncServiceTest` passes (7 tests)
- [x] Full test suite passes (546 tests, 0 failures)
- [x] Pint formatting clean
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