feat: migrate JdbcTransactionProvider to ColumnMapped, make paymentAc…

[fupelaqu]

…count JDBC optional (Story 5.11)

• JdbcTransactionProvider: ColumnMappedJdbcStateProvider with 42 typed columns + Flyway V1 migration
• paymentAccountToJdbcProcessorStream: now Option (default None) for downstream consumers
• StripeEventHandler: LRU dedup (LinkedHashMap) replaces ConcurrentHashMap half-clear
• StripeRecurringPaymentApi: automatic_tax opt-in via metadata + metadata propagation
• Version bump: 0.9.3, genericPersistence 0.8.4

Closed Issue #17

[codecov]

Codecov Report

❌ Patch coverage is 82.84884% with 59 lines in your changes missing coverage. Please review.
✅ Project coverage is 41.59%. Comparing base (06029a3) to head (f527375).
⚠️ Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
...nt/persistence/query/JdbcTransactionProvider.scala	86.47%	43 Missing ⚠️
...scala/app/softnetwork/payment/api/SoftPayApi.scala	0.00%	4 Missing ⚠️
...payment/api/SoftPayEndpointsPostgresLauncher.scala	0.00%	2 Missing ⚠️
...rk/payment/api/SoftPayRoutesPostgresLauncher.scala	0.00%	2 Missing ⚠️
...oftPayWithSchedulerEndpointsPostgresLauncher.scala	0.00%	2 Missing ⚠️
...i/SoftPayWithSchedulerRoutesPostgresLauncher.scala	0.00%	2 Missing ⚠️
...network/payment/scalatest/JdbcPaymentTestKit.scala	60.00%	2 Missing ⚠️
...ftnetwork/payment/service/StripeEventHandler.scala	66.66%	1 Missing ⚠️
...etwork/payment/spi/StripeRecurringPaymentApi.scala	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #18      +/-   ##
==========================================
+ Coverage   40.14%   41.59%   +1.44%     
==========================================
  Files         152      153       +1     
  Lines        9988    10312     +324     
  Branches     1753     1614     -139     
==========================================
+ Hits         4010     4289     +279     
- Misses       5978     6023      +45     

Flag	Coverage Δ
unittests	41.59% <82.84%> (+1.44%)	⬆️

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