v0.14.0 — rename PSLauncher.exe → PS_Launcher.exe (with backward compat)

Aligns the executable name with the repo / product naming. Backward-
compatible: existing installs that have PSLauncher.exe on disk continue
to work — the self-updater overwrites the file at the running .exe path
without renaming, so the historical filename persists on those machines.

Changes
- AssemblyName : PSLauncher → PS_Launcher (both App and Updater csproj)
- Inno Setup : MyAppExeName, MyUpdaterExeName, OutputBaseFilename all
  now use PS_Launcher prefix
- LauncherSelfUpdater : looks for PS_Launcher.Updater.exe first, falls
  back to legacy PSLauncher.Updater.exe so old installs keep updating
- Build scripts (build-launcher / build-updater / build-installer /
  build-all) : taskkill both legacy AND new names; output paths printed
  with new names
- .gitignore : added PS_Launcher.exe / PS_Launcher.Updater.exe /
  PS_Launcher-*.exe patterns alongside the legacy ones; also ignored
  the WebView2 user-data folder and Office ~$ lock files
- Server admin/launcher.php : URL pattern now generates
  PS_Launcher-{ver}.exe ; SignManifest's existing tolerant glob
  *{ver}*.exe still matches both names
- Versions bumped to 0.14.0 (App + Updater + installer .iss)

Migration story for clients
- Brand-new install via PS_Launcher-Setup-0.14.0.exe → PS_Launcher.exe
  on disk
- Existing install (PSLauncher.exe) auto-updates to v0.14 → file stays
  named PSLauncher.exe but contains v0.14 code; self-updater fallback
  ensures future updates keep working

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.gitignore

@@ -53,10 +53,23 @@ server/builds/*
 .claude/
 
 # Binaires copiés par le post-publish à la racine du repo
+# (legacy : PSLauncher.exe — pre-v0.14 ; nouveau : PS_Launcher.exe — depuis v0.14)
 /PSLauncher.exe
 /PSLauncher.Updater.exe
 /PSLauncher-*.exe
 /PSLauncher*.bak
+/PS_Launcher.exe
+/PS_Launcher.Updater.exe
+/PS_Launcher-*.exe
+/PS_Launcher*.bak
 
 # Sortie de l'installeur Inno Setup
 /installer/output/
+
+# WebView2 user data folder créé à côté de l'exe au runtime (cache, cookies,
+# sync data Edge Chromium). Peut faire plusieurs Mo.
+/PSLauncher.exe.WebView2/
+/PS_Launcher.exe.WebView2/
+
+# Fichiers de lock Office (Word/PowerPoint) commençant par ~$
+~$*