Branding Calamares as WROLPi; post-install cleanup of the orphan launcher.

The installer now identifies as WROLPi rather than Debian: product name,
sidebar logo (the wifi-pie favicon from /icon.png), bootloader entry name,
and URLs all point at WROLPi.  Sidebar colors are WROLPi purple.

Three new files under etc/calamares/:
- branding/wrolpi/branding.desc  — product strings + image + color scheme
- branding/wrolpi/wrolpi-logo.png — copy of the project favicon
- settings.conf                  — override picks branding=wrolpi and adds
                                   shellprocess to the exec sequence
- modules/shellprocess.conf      — rm /home/wrolpi/Desktop/install-wrolpi.desktop
                                   on the target so the installed system
                                   doesn't ship with a broken icon

Slideshow QML is intentionally omitted: producing our own QML/asset pack
is deferred polish.  Calamares falls back to a static welcome screen.

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

debian-live-config/README.md

@@ -53,10 +53,13 @@ the user's library so a drive moved between hosts keeps its full state:
 - [x] **Phase 1 — merged live + chroot config**:  Single `debian-live-config/`
       produces a Debian Live ISO with the full WROLPi stack, XFCE auto-login
       as `wrolpi`, persistence partition created on first boot.
-- [ ] **Phase 2 — Calamares installer**:  Add `calamares` package and a
-      desktop launcher so users can install WROLPi to disk.
-- [ ] **Phase 3 — branding + release**:  WROLPi branding for Calamares,
-      CI on tag, hosting, wrolpi.org docs.
+- [x] **Phase 2 — Calamares installer**:  `calamares` package and a desktop
+      launcher.  Users can install WROLPi to disk via the "Install WROLPi to
+      disk" icon on the desktop.
+- [x] **Phase 3 — branding**:  WROLPi product name, logo, colors applied
+      to the Calamares wizard via `etc/calamares/branding/wrolpi/`.  Orphan
+      launcher cleaned up post-install by a Calamares shellprocess module.
+- [ ] **Release**:  CI on tag, hosting, wrolpi.org docs.
 
 ## References
 

debian-live-config/config/hooks/normal/9999-wrolpi.hook.chroot

@@ -210,9 +210,8 @@ EOF
 # placed in ~/Desktop; we use the upstream install-debian wrapper script
 # (pulled in by calamares-settings-debian) but rebrand the launcher entry.
 # Marked executable so XFCE will launch it without a "trusted application"
-# warning.  After install Calamares removes calamares-settings-debian, which
-# takes install-debian with it; the orphan icon is cleaned up in a
-# follow-up Calamares shellprocess (phase 3).
+# warning.  Cleanup of this file on the installed system is handled by
+# the shellprocess Calamares module (see etc/calamares/modules/shellprocess.conf).
 mkdir -p /home/wrolpi/Desktop
 cp /usr/share/applications/install-debian.desktop /home/wrolpi/Desktop/install-wrolpi.desktop
 chmod +x /home/wrolpi/Desktop/install-wrolpi.desktop

debian-live-config/config/includes.chroot/etc/calamares/branding/wrolpi/branding.desc

@@ -0,0 +1,38 @@
+---
+componentName:         wrolpi
+welcomeStyleCalamares: true
+welcomeExpandingLogo:  true
+windowExpanding:       normal
+windowSize:            800px,520px
+windowPlacement:       center
+
+strings:
+    productName:         WROLPi
+    shortProductName:    WROLPi
+    version:             Debian 12 (bookworm)
+    shortVersion:        12
+    versionedName:       WROLPi on Debian 12
+    shortVersionedName:  WROLPi
+    bootloaderEntryName: WROLPi
+    productUrl:          https://wrolpi.org
+    supportUrl:          https://wrolpi.org
+    knownIssuesUrl:      https://github.com/lrnselfreliance/wrolpi/issues
+    releaseNotesUrl:     https://github.com/lrnselfreliance/wrolpi/releases
+    donateUrl:           https://wrolpi.org
+
+images:
+    productLogo:         "wrolpi-logo.png"
+    productIcon:         "wrolpi-logo.png"
+    productWelcome:      "wrolpi-logo.png"
+
+# Slideshow omitted — the upstream Debian slideshow doesn't ship with the
+# WROLPi branding, and producing our own QML is deferred polish.  Calamares
+# falls back to a static welcome screen.
+
+style:
+    sidebarBackground:    "#5d2961"
+    sidebarText:          "#FFFFFF"
+    sidebarTextSelect:    "#8d4d92"
+    sidebarTextHighlight: "#FFFFFF"
+
+slideshowAPI: 2

debian-live-config/config/includes.chroot/etc/calamares/modules/shellprocess.conf

@@ -0,0 +1,13 @@
+---
+# Run inside the target system's chroot so paths refer to the installed
+# /home/wrolpi, not the live system's.
+dontChroot: false
+timeout: 30
+script:
+  # Remove the orphan "Install WROLPi" launcher.  Calamares removes the
+  # calamares-settings-debian package (taking the install-debian wrapper
+  # binary with it), but the copy we placed in the wrolpi user's Desktop
+  # directory is a plain file that apt doesn't track.  Without this
+  # cleanup, the installed system shows an icon that fails when clicked
+  # because its Exec target no longer exists.
+  - "rm -f /home/wrolpi/Desktop/install-wrolpi.desktop"

debian-live-config/config/includes.chroot/etc/calamares/settings.conf

@@ -0,0 +1,68 @@
+# Configuration file for Calamares — WROLPi installer.
+#
+# Mostly mirrors the upstream calamares-settings-debian settings.conf;
+# differences are:
+#   - branding: wrolpi  (was: debian)
+#   - shellprocess inserted near the end of the exec phase to clean up the
+#     "Install WROLPi" desktop launcher we drop on the live user's desktop.
+#     Upstream's packages module already removes calamares-settings-debian
+#     (taking install-debian and the .desktop file in /usr/share/applications
+#     with it), but our copy in /home/wrolpi/Desktop/ is a plain file that
+#     apt doesn't know about and would otherwise survive as an orphan on
+#     the installed system.
+---
+
+modules-search: [ local, /usr/lib/calamares/modules ]
+
+oem-setup: false
+disable-cancel: false
+disable-cancel-during-exec: false
+quit-at-end: false
+
+sequence:
+- show:
+  - welcome
+  - locale
+  - keyboard
+  - partition
+  - users
+  - summary
+
+- exec:
+  - partition
+  - mount
+  - unpackfs
+  - dpkg-unsafe-io
+  - sources-media
+  - machineid
+  - fstab
+  - locale
+  - keyboard
+  - localecfg
+  - users
+  - displaymanager
+  - networkcfg
+  - hwclock
+  - services-systemd
+  - bootloader-config
+  - grubcfg
+  - bootloader
+  - packages
+  - luksbootkeyfile
+  - plymouthcfg
+  - initramfscfg
+  - initramfs
+  - dpkg-unsafe-io-undo
+  - sources-media-unmount
+  - sources-final
+  - shellprocess
+  - umount
+
+- show:
+  - finished
+
+branding: wrolpi
+
+prompt-install: false
+
+dont-chroot: false