docs(installer): describe the per-user default install location and scope

README.md

@@ -275,8 +275,10 @@ send us right now.
 | arm64 (Snapdragon and other ARM PCs) | `effectcraft-<ver>-windows-arm64.msi` | `effectcraft-<ver>-windows-arm64-portable.zip` |
 | x86 (32-bit) | `effectcraft-<ver>-windows-x86.msi` | `effectcraft-<ver>-windows-x86-portable.zip` |
 
-Installers and executables are code-signed. The installer asks where to install EffectCraft
-(Program Files by default), and later versions install into the same folder. To install silently
+Installers and executables are code-signed. The installer asks who to install EffectCraft for and where. By default it installs for your
+account only, into `%LOCALAPPDATA%\Programs\ArtCraft\EffectCraft`, without an administrator prompt;
+"Everyone on this computer" installs into `C:\Program Files\ArtCraft\EffectCraft`. Later versions
+install into the same folder. To install silently
 into a folder of your choice: `msiexec /i effectcraft-<ver>-windows-x64.msi /qn INSTALLFOLDER="D:\Apps\EffectCraft"`.
 
 ### macOS

docs/agents.md

@@ -54,13 +54,13 @@ The release packages ship `effectcraft-cli` alongside the desktop app, so no bui
 
 | Install | CLI |
 |---|---|
-| Windows (MSI) | `C:\Program Files\EffectCraft\effectcraft-cli.exe` by default (wherever you installed it otherwise), not on `PATH` |
+| Windows (MSI) | `%LOCALAPPDATA%\Programs\ArtCraft\EffectCraft\effectcraft-cli.exe` by default (`C:\Program Files\ArtCraft\EffectCraft\effectcraft-cli.exe` for an all-users install, or wherever you installed it otherwise), not on `PATH` |
 | Linux (deb, rpm) | `/usr/bin/effectcraft-cli` |
 | macOS | the separate `effectcraft-cli-<version>-macos-<arch>.zip` release asset (the `.app` holds only the desktop app) |
 
 ```sh
-# Windows, default install folder
-claude mcp add effectcraft -- "C:\Program Files\EffectCraft\effectcraft-cli.exe" mcp
+# Windows (PowerShell), default install folder
+claude mcp add effectcraft -- "$env:LOCALAPPDATA\Programs\ArtCraft\EffectCraft\effectcraft-cli.exe" mcp
 # Linux, or macOS with the CLI unzipped onto PATH
 claude mcp add effectcraft -- effectcraft-cli mcp
 ```

docs/releasing.md

@@ -71,7 +71,7 @@ The MSI's setup wizard ([`installer-ui.wxs`](../packaging/windows/installer-ui.w
 choose the install folder; upgrades and repairs reuse it, and `INSTALLFOLDER="..."` picks it for a
 silent (`/qn`) install. [`packaging-lint.yml`](../.github/workflows/packaging-lint.yml) install-tests
 that with stub binaries ([`test-msi.ps1`](../packaging/windows/test-msi.ps1)): a custom folder,
-an upgrade that keeps it, a repair, uninstall, and the Program Files default. The wizard pages
+an upgrade that keeps it, a repair, uninstall, and the all-users default folder (`Program Files\ArtCraft\EffectCraft`). The wizard pages
 themselves are checked by hand.
 
 The portable zip ships [`portable.txt`](../packaging/windows/portable.txt) beside `effectcraft.exe`.

packaging/windows/test-msi.ps1

@@ -11,7 +11,7 @@
     3. upgrades to 0.0.3 the same way (found from the Path value 0.0.2 wrote),
     4. repairs a damaged (unversioned) CLI there with the wizard's Repair mode,
     5. uninstalls: files, the App Paths registration and the desktop shortcut go,
-    6. installs 0.0.3 with no folder and DESKTOPSHORTCUT=0: it must land in Program Files with no
+    6. installs 0.0.3 with no folder and DESKTOPSHORTCUT=0: it must land in Program Files\ArtCraft\EffectCraft (ALLUSERS=1) with no
        desktop shortcut, then uninstalls.
   The installs before step 6 take the default desktop shortcut, which upgrades keep.
   The wizard itself needs a person (or the snapshot steps in the PR); this covers what msiexec /qn