Update Dominican withholding catalog

Apply the Article 309 rates introduced by Law 30-26 with dated historical templates and rules. Complete tax-code reversals, improve English terminology, harden migrations, and expand structural and functional tests.

doc/core_readiness.rst

@@ -19,8 +19,8 @@ the reviewer and review date rather than claiming certification in module data.
 Chart Size and Provenance
 -------------------------
 
-The chart has 282 templates: 70 grouping nodes and 212 posting leaves. Of the
-posting leaves, 61 are tax control accounts (45 payable and 16 recoverable).
+The chart has 287 templates: 70 grouping nodes and 217 posting leaves. Of the
+posting leaves, 66 are tax control accounts (50 payable and 16 recoverable).
 Those controls deliberately provide stable identifiers for accounting and
 reporting modules. The remaining leaves cover cash, receivables, payables,
 inventory, cost of sales, assets, depreciation, deposits, leases, financial
@@ -36,7 +36,7 @@ designed Tryton baseline using these objective inclusion rules:
 * separate presentation is needed for a documented IFRS accounting policy.
 
 Grouping nodes are closed and cannot receive postings. The test suite checks
-282 unique templates, required optional-module accounts, account types and the
+287 unique templates, required optional-module accounts, account types and the
 IFRS policy coverage map. This is a transparent functional justification,
 which is the appropriate evidence where no official general chart exists.
 
@@ -45,7 +45,7 @@ accounts. That is not decidable from Dominican law because no mandatory
 general catalogue supplies a target count. If requested during review, the
 safe reduction is to merge control accounts only after confirming that
 ``dgii_reports`` does not depend on their stable identifiers; claiming that
-282 codes are official would be incorrect.
+287 codes are official would be incorrect.
 
 Upstream Repository
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