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).

iso/airootfs/etc/skel/.config/hypr/scripts/ui/settings.lua

@@ -0,0 +1,121 @@
+-- scripts/ui/settings.lua — loads settings.json over hardcoded defaults and
+-- applies via hl.config(). Failsafe in two layers:
+--   1. every leaf value is type-checked against its default individually, so
+--      one bad field (wrong type, typo) falls back to just that field, not
+--      the whole file;
+--   2. the actual hl.config() application is pcall'd — if Hyprland itself
+--      rejects a well-typed-but-semantically-bad value, we fall back to
+--      re-applying pure hardcoded defaults, so the session always comes up
+--      with a normal, usable layout instead of erroring out mid-config-load.
+local json = dofile(os.getenv("HOME") .. "/.config/hypr/scripts/lib/json.lua")
+
+local DEFAULTS = {
+    gaps_in = 5,
+    gaps_out = 10,
+    border_size = 2,
+    active_border = "rgba(88c0d0ff)",
+    inactive_border = "rgba(4c566aff)",
+    layout = "dwindle",
+    resize_on_border = true,
+    rounding = 8,
+    blur_enabled = true,
+    blur_size = 6,
+    blur_passes = 2,
+    shadow_enabled = true,
+    shadow_range = 12,
+    shadow_render_power = 3,
+    kb_layout = "us",
+    follow_mouse = 1,
+    natural_scroll = true,
+}
+
+local function num(v, fallback)
+    if type(v) == "number" then return v end
+    return fallback
+end
+
+local function bool(v, fallback)
+    if type(v) == "boolean" then return v end
+    return fallback
+end
+
+local function str(v, fallback)
+    if type(v) == "string" and v ~= "" then return v end
+    return fallback
+end
+
+local function load_overrides()
+    local path = os.getenv("HOME") .. "/.config/hypr/settings.json"
+    local parsed = json.load(path)
+    if type(parsed) ~= "table" then
+        return {}
+    end
+    return parsed
+end
+
+local o = load_overrides()
+
+local merged = {
+    gaps_in             = num(o.gaps_in, DEFAULTS.gaps_in),
+    gaps_out            = num(o.gaps_out, DEFAULTS.gaps_out),
+    border_size         = num(o.border_size, DEFAULTS.border_size),
+    active_border       = str(o.active_border, DEFAULTS.active_border),
+    inactive_border     = str(o.inactive_border, DEFAULTS.inactive_border),
+    layout              = str(o.layout, DEFAULTS.layout),
+    resize_on_border    = bool(o.resize_on_border, DEFAULTS.resize_on_border),
+    rounding            = num(o.rounding, DEFAULTS.rounding),
+    blur_enabled        = bool(o.blur_enabled, DEFAULTS.blur_enabled),
+    blur_size           = num(o.blur_size, DEFAULTS.blur_size),
+    blur_passes         = num(o.blur_passes, DEFAULTS.blur_passes),
+    shadow_enabled      = bool(o.shadow_enabled, DEFAULTS.shadow_enabled),
+    shadow_range        = num(o.shadow_range, DEFAULTS.shadow_range),
+    shadow_render_power = num(o.shadow_render_power, DEFAULTS.shadow_render_power),
+    kb_layout           = str(o.kb_layout, DEFAULTS.kb_layout),
+    follow_mouse        = num(o.follow_mouse, DEFAULTS.follow_mouse),
+    natural_scroll      = bool(o.natural_scroll, DEFAULTS.natural_scroll),
+}
+
+local function build_hl_config(v)
+    return {
+        general = {
+            gaps_in = v.gaps_in,
+            gaps_out = v.gaps_out,
+            border_size = v.border_size,
+            col = {
+                active_border = v.active_border,
+                inactive_border = v.inactive_border,
+            },
+            layout = v.layout,
+            resize_on_border = v.resize_on_border,
+        },
+        decoration = {
+            rounding = v.rounding,
+            active_opacity = 1.0,
+            inactive_opacity = 1.0,
+            blur = {
+                enabled = v.blur_enabled,
+                size = v.blur_size,
+                passes = v.blur_passes,
+                new_optimizations = true,
+            },
+            shadow = {
+                enabled = v.shadow_enabled,
+                range = v.shadow_range,
+                render_power = v.shadow_render_power,
+            },
+        },
+        input = {
+            kb_layout = v.kb_layout,
+            follow_mouse = v.follow_mouse,
+            touchpad = { natural_scroll = v.natural_scroll },
+        },
+        dwindle = { preserve_split = true },
+        animations = { enabled = true },
+        misc = { disable_hyprland_logo = true, disable_splash_rendering = true },
+    }
+end
+
+local ok = pcall(hl.config, build_hl_config(merged))
+if not ok then
+    pcall(hl.config, build_hl_config(DEFAULTS))
+end