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/sw.msg

@@ -0,0 +1,49 @@
+# created by tools/loadICU.tcl -- do not edit
+namespace eval ::tcl::clock {
+    ::msgcat::mcset sw DAYS_OF_WEEK_ABBREV [list \
+        "Jpi"\
+        "Jtt"\
+        "Jnn"\
+        "Jtn"\
+        "Alh"\
+        "Iju"\
+        "Jmo"]
+    ::msgcat::mcset sw DAYS_OF_WEEK_FULL [list \
+        "Jumapili"\
+        "Jumatatu"\
+        "Jumanne"\
+        "Jumatano"\
+        "Alhamisi"\
+        "Ijumaa"\
+        "Jumamosi"]
+    ::msgcat::mcset sw MONTHS_ABBREV [list \
+        "Jan"\
+        "Feb"\
+        "Mar"\
+        "Apr"\
+        "Mei"\
+        "Jun"\
+        "Jul"\
+        "Ago"\
+        "Sep"\
+        "Okt"\
+        "Nov"\
+        "Des"\
+        ""]
+    ::msgcat::mcset sw MONTHS_FULL [list \
+        "Januari"\
+        "Februari"\
+        "Machi"\
+        "Aprili"\
+        "Mei"\
+        "Juni"\
+        "Julai"\
+        "Agosti"\
+        "Septemba"\
+        "Oktoba"\
+        "Novemba"\
+        "Desemba"\
+        ""]
+    ::msgcat::mcset sw BCE "KK"
+    ::msgcat::mcset sw CE "BK"
+}