v0.6.4 - Retour onedir (configuration stable)

Changements :
- Retour a --onedir : seule configuration sans erreur DLL confirmee
- _internal/ recommite dans le repo
- build.bat restaure avec copie automatique de _internal/

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

_internal/_tcl_data/tzdata/Brazil/Acre

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+# created by tools/tclZIC.tcl - do not edit
+if {![info exists TZData(America/Rio_Branco)]} {
+    LoadTimeZoneFile America/Rio_Branco
+}
+set TZData(:Brazil/Acre) $TZData(:America/Rio_Branco)

_internal/_tcl_data/tzdata/Brazil/DeNoronha

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+# created by tools/tclZIC.tcl - do not edit
+if {![info exists TZData(America/Noronha)]} {
+    LoadTimeZoneFile America/Noronha
+}
+set TZData(:Brazil/DeNoronha) $TZData(:America/Noronha)

_internal/_tcl_data/tzdata/Brazil/East

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+# created by tools/tclZIC.tcl - do not edit
+if {![info exists TZData(America/Sao_Paulo)]} {
+    LoadTimeZoneFile America/Sao_Paulo
+}
+set TZData(:Brazil/East) $TZData(:America/Sao_Paulo)

_internal/_tcl_data/tzdata/Brazil/West

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+# created by tools/tclZIC.tcl - do not edit
+if {![info exists TZData(America/Manaus)]} {
+    LoadTimeZoneFile America/Manaus
+}
+set TZData(:Brazil/West) $TZData(:America/Manaus)