Extract bos-settings to its own repo; add breadhelp; JSON-driven Hyprland config

bos-settings moves to git.breadway.dev/Breadway/bos-settings (full history
preserved via git-filter-repo) so its release cadence is decoupled from
BOS's own. breadhelp takes its place as this repo's workspace member: a
GTK4 onboarding/help center replacing the old bos-welcome/bos-keybinds
bash scripts with searchable guides, an interactive keybind viewer
(sourced from the new keybinds.toml, not parsed out of hyprland.lua or
hardcoded), a troubleshooting wizard with one-click fixes, and a proper
first-run tour. bos-netcheck extracts bos-welcome's network-check half,
which still needs to run every login independent of breadhelp's own
first-run gating.

hyprland.lua's keybinds/settings/monitors/autostart are now JSON-driven
(binds.json/settings.json/monitors.json/autostart.json) with every
loader pcall-wrapped and falling back to hardcoded defaults per field on
bad or missing config, so bread* apps (bos-settings' new editors, and
breadhelp's keybind viewer) can read/write this config without ever
being able to leave the compositor unable to start.

CI's package.yml now builds breadhelp instead of bos-settings on tag
push; bos-settings needs its own equivalent workflow in its new repo
(not yet set up).

breadhelp/content/getting-started/03-personalizing-bos/content.md

@@ -0,0 +1,18 @@
+# Personalizing BOS
+
+The whole desktop recolors itself from your wallpaper — bar, launcher,
+notes, settings, and this help center all pick up the same palette
+automatically.
+
+## Change your wallpaper
+
+- [Run]breadpaper|Open the wallpaper picker[/Run]
+
+Picking a new wallpaper regenerates the color palette for every bread app —
+no restart needed, everything live-reloads.
+
+## Change the bar and launcher
+
+Open BOS Settings for per-app options:
+
+- [Run]bos-settings|Open BOS Settings[/Run]

breadhelp/content/getting-started/03-personalizing-bos/meta.toml

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+title = "Personalizing BOS"
+difficulty = "beginner"
+tags = ["wallpaper", "theme", "customization"]
+related = []
+estimated_minutes = 3