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/msgs/nl.msg

@@ -0,0 +1,50 @@
+# created by tools/loadICU.tcl -- do not edit
+namespace eval ::tcl::clock {
+    ::msgcat::mcset nl DAYS_OF_WEEK_ABBREV [list \
+        "zo"\
+        "ma"\
+        "di"\
+        "wo"\
+        "do"\
+        "vr"\
+        "za"]
+    ::msgcat::mcset nl DAYS_OF_WEEK_FULL [list \
+        "zondag"\
+        "maandag"\
+        "dinsdag"\
+        "woensdag"\
+        "donderdag"\
+        "vrijdag"\
+        "zaterdag"]
+    ::msgcat::mcset nl MONTHS_ABBREV [list \
+        "jan"\
+        "feb"\
+        "mrt"\
+        "apr"\
+        "mei"\
+        "jun"\
+        "jul"\
+        "aug"\
+        "sep"\
+        "okt"\
+        "nov"\
+        "dec"\
+        ""]
+    ::msgcat::mcset nl MONTHS_FULL [list \
+        "januari"\
+        "februari"\
+        "maart"\
+        "april"\
+        "mei"\
+        "juni"\
+        "juli"\
+        "augustus"\
+        "september"\
+        "oktober"\
+        "november"\
+        "december"\
+        ""]
+    ::msgcat::mcset nl DATE_FORMAT "%e %B %Y"
+    ::msgcat::mcset nl TIME_FORMAT "%k:%M:%S"
+    ::msgcat::mcset nl DATE_TIME_FORMAT "%e %B %Y %k:%M:%S %z"
+}