docs: rework all pages to Artix Wiki quality

- index.md: add download link + stable release announcement
- building.md: add troubleshooting section (cache, squashfs, compression)
- ci.md: IA upload enabled, push trigger removed (manual dispatch only)
- development.md: add all gotchas from AGENTS.md (SDDM theme ordering,
  pipewire launcher, antergos-release in basestrap, CI changes)
- installer.md: document fixed issues (audio, SDDM, os-release)
- packages.md: add pipewire fork, antergos-sddm-theme, antergos-release
- launcher.md: expand with module configs
- init-systems.md: Chimera uses dinit, OpenRC marked as broken
- openrc.md: add broken warning banner
- wallpapers.md: default is antergos-wallpaper.png (not Adwaita Morning)
- overlays: clean up explanations and symlink behavior
- desktop-environments.md: add Discover note, clean up GNOME entry
- dinit.md, runit.md, s6.md: polish and add troubleshooting sections

docs/overlay-live.md

@@ -15,16 +15,19 @@ Files in `iso-profiles/antergos/live-overlay/` exist only in the live environmen
 live-overlay/
 ├── etc/
 │   ├── calamares/
-│   │   ├── settings.conf           # -> symlinks to online or offline
+│   │   └── settings.conf           # Symlink → online or offline config
 │   ├── calamares-offline/
 │   │   ├── settings.conf           # Offline install config (unpackfs)
 │   │   └── modules/
+│   │       ├── unpackfs.conf
+│   │       ├── initcpiocfg.conf
 │   │       └── ...
 │   ├── calamares-online/
 │   │   ├── settings.conf           # Online install config (packagechooser)
 │   │   └── modules/
 │   │       ├── packagechooser_init.conf      # Init system selector
 │   │       ├── packagechooser_desktop.conf   # DE selector
+│   │       ├── initcpiocfg.conf
 │   │       └── ...
 │   └── sddm.conf.d/
 │       └── kde_settings.conf       # SDDM autologin + Wayland session
@@ -39,7 +42,7 @@ live-overlay/
 
 ### `etc/calamares/settings.conf`
 
-Symlink — points to either `../calamares-offline/settings.conf` or `../calamares-online/settings.conf`, set by `calamares-next.sh`.
+Symlink — points to either `../calamares-offline/settings.conf` or `../calamares-online/settings.conf`, set by `calamares-next.sh` after the user selects a mode.
 
 ### `etc/calamares-online/settings.conf`
 
@@ -47,18 +50,16 @@ Two `packagechooser` instances:
 - `packagechooser@init` — init system (Dinit, OpenRC, Runit, S6) via netinstall-add
 - `packagechooser@desktop` — DE selection via legacy method
 
-### `etc/calamares-online/modules/packagechooser_init.conf`
-
-Init selector config. Uses `method: netinstall-add` — the selected init pulls its associated packages.
-
-### `etc/calamares-online/modules/packagechooser_desktop.conf`
-
-DE selector config. Uses `method: legacy` — returns the selected DE as a global storage value.
+The init selector uses `netinstall-add` method, meaning the selected init group's packages are added to the install set. The DE selector uses `legacy` method, returning the selected DE as a global storage value.
 
 ### `etc/calamares-offline/settings.conf`
 
-No packagechooser. Uses `unpackfs` to deploy a pre-built KDE Plasma squashfs.
+No packagechooser. Uses `unpackfs` to deploy a pre-built KDE Plasma squashfs, then `initcpiocfg` + `initcpio` for mkinitcpio configuration.
+
+### `etc/calamares/modules/basestrap.conf`
+
+Controls package installation during bootstrapping. The `operations` list includes packages that must be installed with `--overwrite`. This is where `antergos-release` is listed to ensure it overwrites `/usr/lib/os-release` from the `filesystem` package.
 
 ### `usr/share/applications/calamares-config-switcher.desktop`
 
-Has `NoDisplay=true` to hide it from the app menu. The upstream Artix "Install Artix Linux" entry is suppressed this way.
+Has `NoDisplay=true` to hide it from the app menu. The upstream Artix "Install Artix Linux" entry is suppressed this way while keeping the binary available.